./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/nsqm-iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/array-fpi/nsqm-iff.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87ec3c93c72fac429e4c8efcc23f8033e6fcfeb3 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:35:30,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:35:30,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:35:30,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:35:30,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:35:30,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:35:30,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:35:30,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:35:30,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:35:30,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:35:30,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:35:30,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:35:30,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:35:30,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:35:30,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:35:30,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:35:30,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:35:30,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:35:30,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:35:30,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:35:30,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:35:30,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:35:30,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:35:30,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:35:30,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:35:30,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:35:30,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:35:30,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:35:30,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:35:30,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:35:30,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:35:30,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:35:30,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:35:30,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:35:30,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:35:30,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:35:30,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:35:30,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:35:30,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:35:30,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:35:30,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:35:30,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:35:31,020 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:35:31,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:35:31,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:35:31,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:35:31,025 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:35:31,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:35:31,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:35:31,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:35:31,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:35:31,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:35:31,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:35:31,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:35:31,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:35:31,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:35:31,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:35:31,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:35:31,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:35:31,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:35:31,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:35:31,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:35:31,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:35:31,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:35:31,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:35:31,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:35:31,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:35:31,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:35:31,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:35:31,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:35:31,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:35:31,033 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ec3c93c72fac429e4c8efcc23f8033e6fcfeb3 [2019-11-28 15:35:31,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:35:31,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:35:31,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:35:31,371 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:35:31,372 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:35:31,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/nsqm-iff.c [2019-11-28 15:35:31,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9fd490b/e531bb6def2246619ff3042f225e02ef/FLAG94a85d07b [2019-11-28 15:35:31,865 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:35:31,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-iff.c [2019-11-28 15:35:31,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9fd490b/e531bb6def2246619ff3042f225e02ef/FLAG94a85d07b [2019-11-28 15:35:32,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9fd490b/e531bb6def2246619ff3042f225e02ef [2019-11-28 15:35:32,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:35:32,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:35:32,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:35:32,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:35:32,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:35:32,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff1b695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32, skipping insertion in model container [2019-11-28 15:35:32,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:35:32,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:35:32,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:35:32,520 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:35:32,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:35:32,552 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:35:32,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32 WrapperNode [2019-11-28 15:35:32,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:35:32,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:35:32,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:35:32,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:35:32,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:35:32,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:35:32,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:35:32,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:35:32,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (1/1) ... [2019-11-28 15:35:32,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:35:32,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:35:32,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:35:32,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:35:32,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (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 15:35:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:35:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:35:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:35:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:35:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:35:32,986 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:35:32,986 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 15:35:32,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:32 BoogieIcfgContainer [2019-11-28 15:35:32,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:35:32,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:35:32,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:35:32,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:35:32,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:35:32" (1/3) ... [2019-11-28 15:35:32,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4f4ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:32, skipping insertion in model container [2019-11-28 15:35:32,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:32" (2/3) ... [2019-11-28 15:35:32,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4f4ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:32, skipping insertion in model container [2019-11-28 15:35:32,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:32" (3/3) ... [2019-11-28 15:35:33,000 INFO L109 eAbstractionObserver]: Analyzing ICFG nsqm-iff.c [2019-11-28 15:35:33,011 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:35:33,018 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:35:33,039 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:35:33,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:35:33,060 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:35:33,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:35:33,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:35:33,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:35:33,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:35:33,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:35:33,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:35:33,074 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-28 15:35:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 15:35:33,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:33,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:33,081 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1201566748, now seen corresponding path program 1 times [2019-11-28 15:35:33,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:33,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936927119] [2019-11-28 15:35:33,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:33,258 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 15:35:33,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936927119] [2019-11-28 15:35:33,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:33,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:35:33,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122158579] [2019-11-28 15:35:33,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:35:33,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:33,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:35:33,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:35:33,280 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-28 15:35:33,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:33,295 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-28 15:35:33,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:35:33,297 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-28 15:35:33,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:33,305 INFO L225 Difference]: With dead ends: 36 [2019-11-28 15:35:33,305 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 15:35:33,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:35:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 15:35:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 15:35:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 15:35:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-28 15:35:33,339 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-11-28 15:35:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:33,339 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 15:35:33,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:35:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-28 15:35:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 15:35:33,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:33,341 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:33,341 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:33,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1920794649, now seen corresponding path program 1 times [2019-11-28 15:35:33,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:33,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267295825] [2019-11-28 15:35:33,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:33,360 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:35:33,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900007348] [2019-11-28 15:35:33,361 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 15:35:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:33,421 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:35:33,426 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:35:33,466 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 15:35:33,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267295825] [2019-11-28 15:35:33,467 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:35:33,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900007348] [2019-11-28 15:35:33,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:33,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:35:33,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174220859] [2019-11-28 15:35:33,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:35:33,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:33,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:35:33,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:35:33,471 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-28 15:35:33,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:33,556 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-28 15:35:33,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:35:33,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 15:35:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:33,558 INFO L225 Difference]: With dead ends: 31 [2019-11-28 15:35:33,558 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 15:35:33,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 15:35:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 15:35:33,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-28 15:35:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 15:35:33,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-28 15:35:33,569 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-28 15:35:33,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:33,570 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-28 15:35:33,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:35:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-28 15:35:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 15:35:33,572 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:33,573 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:33,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:35:33,778 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:33,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:33,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1948223762, now seen corresponding path program 1 times [2019-11-28 15:35:33,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:33,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891627036] [2019-11-28 15:35:33,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:33,807 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:35:33,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901175486] [2019-11-28 15:35:33,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:35:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:33,862 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:35:33,865 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:35:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 15:35:33,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891627036] [2019-11-28 15:35:33,895 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:35:33,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901175486] [2019-11-28 15:35:33,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:33,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:35:33,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105932625] [2019-11-28 15:35:33,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:35:33,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:33,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:35:33,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:35:33,905 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-28 15:35:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:33,982 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-28 15:35:33,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:35:33,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 15:35:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:33,984 INFO L225 Difference]: With dead ends: 36 [2019-11-28 15:35:33,985 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 15:35:33,985 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 15:35:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 15:35:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-11-28 15:35:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 15:35:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-28 15:35:33,995 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2019-11-28 15:35:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:33,996 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-28 15:35:33,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:35:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-28 15:35:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 15:35:33,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:33,999 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:34,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:35:34,211 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:34,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:34,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1326513248, now seen corresponding path program 1 times [2019-11-28 15:35:34,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:34,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152320559] [2019-11-28 15:35:34,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:34,236 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:35:34,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647287436] [2019-11-28 15:35:34,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:35:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:35:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:35:34,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:35:34,322 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:35:34,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:35:34,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:35:34 BoogieIcfgContainer [2019-11-28 15:35:34,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:35:34,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:35:34,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:35:34,564 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:35:34,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:32" (3/4) ... [2019-11-28 15:35:34,567 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:35:34,629 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:35:34,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:35:34,632 INFO L168 Benchmark]: Toolchain (without parser) took 2369.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 960.4 MB in the beginning and 987.4 MB in the end (delta: -27.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:34,633 INFO L168 Benchmark]: CDTParser took 0.79 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 15:35:34,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.55 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 15:35:34,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:34,635 INFO L168 Benchmark]: Boogie Preprocessor took 31.59 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. [2019-11-28 15:35:34,636 INFO L168 Benchmark]: RCFGBuilder took 313.86 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:34,637 INFO L168 Benchmark]: TraceAbstraction took 1570.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.4 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:34,638 INFO L168 Benchmark]: Witness Printer took 66.45 ms. Allocated memory is still 1.1 GB. Free memory is still 987.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:35:34,642 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 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 290.55 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 88.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.59 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 313.86 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1570.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 987.4 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.45 ms. Allocated memory is still 1.1 GB. Free memory is still 987.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i