./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/condaf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/condaf.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3299ed11d0a8beab5e242433520cd1a21cc68363 ................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-9a8b2e8 [2020-10-19 22:10:57,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:10:57,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:10:57,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:10:57,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:10:57,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:10:57,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:10:57,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:10:57,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:10:57,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:10:57,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:10:57,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:10:57,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:10:57,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:10:57,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:10:57,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:10:57,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:10:57,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:10:57,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:10:57,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:10:57,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:10:57,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:10:57,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:10:57,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:10:57,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:10:57,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:10:57,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:10:57,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:10:57,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:10:57,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:10:57,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:10:57,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:10:57,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:10:57,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:10:57,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:10:57,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:10:57,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:10:57,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:10:57,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:10:57,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:10:57,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:10:57,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:10:57,951 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:10:57,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:10:57,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:10:57,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:10:57,954 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:10:57,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:10:57,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:10:57,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:10:57,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:10:57,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:10:57,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:10:57,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:10:57,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:10:57,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:10:57,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:10:57,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:10:57,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:10:57,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:10:57,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:10:57,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:10:57,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:10:57,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:10:57,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:10:57,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:10:57,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:10:57,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:10:57,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:10:57,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:10:57,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:10:57,962 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(reach_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 -> 3299ed11d0a8beab5e242433520cd1a21cc68363 [2020-10-19 22:10:58,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:10:58,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:10:58,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:10:58,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:10:58,196 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:10:58,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/condaf.c [2020-10-19 22:10:58,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c72c099d/47d741c925f14315aca3960346ebf29a/FLAG8f8a88b10 [2020-10-19 22:10:58,812 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:10:58,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/condaf.c [2020-10-19 22:10:58,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c72c099d/47d741c925f14315aca3960346ebf29a/FLAG8f8a88b10 [2020-10-19 22:10:59,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c72c099d/47d741c925f14315aca3960346ebf29a [2020-10-19 22:10:59,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:10:59,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:10:59,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:10:59,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:10:59,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:10:59,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed4f48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59, skipping insertion in model container [2020-10-19 22:10:59,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:10:59,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:10:59,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:10:59,450 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:10:59,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:10:59,492 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:10:59,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59 WrapperNode [2020-10-19 22:10:59,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:10:59,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:10:59,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:10:59,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:10:59,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:10:59,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:10:59,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:10:59,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:10:59,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (1/1) ... [2020-10-19 22:10:59,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:10:59,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:10:59,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:10:59,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:10:59,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (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 [2020-10-19 22:10:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:10:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:10:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 22:10:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 22:10:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:10:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:10:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 22:10:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 22:10:59,916 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:10:59,916 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-19 22:10:59,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:10:59 BoogieIcfgContainer [2020-10-19 22:10:59,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:10:59,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:10:59,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:10:59,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:10:59,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:10:59" (1/3) ... [2020-10-19 22:10:59,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:10:59, skipping insertion in model container [2020-10-19 22:10:59,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:10:59" (2/3) ... [2020-10-19 22:10:59,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:10:59, skipping insertion in model container [2020-10-19 22:10:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:10:59" (3/3) ... [2020-10-19 22:10:59,929 INFO L111 eAbstractionObserver]: Analyzing ICFG condaf.c [2020-10-19 22:10:59,958 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:10:59,965 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:10:59,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:11:00,020 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:11:00,021 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:11:00,021 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:11:00,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:11:00,021 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:11:00,022 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:11:00,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:11:00,022 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:11:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-19 22:11:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 22:11:00,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:00,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:00,050 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:00,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:00,057 INFO L82 PathProgramCache]: Analyzing trace with hash -845640729, now seen corresponding path program 1 times [2020-10-19 22:11:00,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:00,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98131347] [2020-10-19 22:11:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:00,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98131347] [2020-10-19 22:11:00,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:11:00,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:11:00,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672879287] [2020-10-19 22:11:00,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 22:11:00,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:00,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 22:11:00,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 22:11:00,244 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-10-19 22:11:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:00,263 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2020-10-19 22:11:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 22:11:00,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-19 22:11:00,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:00,275 INFO L225 Difference]: With dead ends: 41 [2020-10-19 22:11:00,292 INFO L226 Difference]: Without dead ends: 18 [2020-10-19 22:11:00,295 INFO L677 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 [2020-10-19 22:11:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-19 22:11:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 22:11:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 22:11:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-10-19 22:11:00,329 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2020-10-19 22:11:00,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:00,330 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-19 22:11:00,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 22:11:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-10-19 22:11:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 22:11:00,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:00,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:00,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:11:00,332 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1238667739, now seen corresponding path program 1 times [2020-10-19 22:11:00,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:00,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781796219] [2020-10-19 22:11:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:11:00,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781796219] [2020-10-19 22:11:00,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:11:00,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:11:00,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063896609] [2020-10-19 22:11:00,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:11:00,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:00,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:11:00,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:11:00,421 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2020-10-19 22:11:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:00,496 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2020-10-19 22:11:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:11:00,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-19 22:11:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:00,498 INFO L225 Difference]: With dead ends: 36 [2020-10-19 22:11:00,498 INFO L226 Difference]: Without dead ends: 25 [2020-10-19 22:11:00,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:11:00,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-19 22:11:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2020-10-19 22:11:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 22:11:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-10-19 22:11:00,506 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2020-10-19 22:11:00,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:00,518 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-10-19 22:11:00,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:11:00,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-10-19 22:11:00,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 22:11:00,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:00,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:00,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:11:00,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:00,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2001188913, now seen corresponding path program 1 times [2020-10-19 22:11:00,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:00,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431741629] [2020-10-19 22:11:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 22:11:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431741629] [2020-10-19 22:11:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109579999] [2020-10-19 22:11:00,902 INFO L95 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 [2020-10-19 22:11:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:11:00,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 22:11:00,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:11:01,039 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-19 22:11:01,040 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:01,046 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:01,046 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 22:11:01,046 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-10-19 22:11:01,105 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-19 22:11:01,107 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 22:11:01,109 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 22:11:01,109 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 22:11:01,110 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-10-19 22:11:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 22:11:01,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:11:01,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2020-10-19 22:11:01,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547135198] [2020-10-19 22:11:01,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 22:11:01,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:11:01,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 22:11:01,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-19 22:11:01,151 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 13 states. [2020-10-19 22:11:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:11:01,471 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2020-10-19 22:11:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 22:11:01,472 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2020-10-19 22:11:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:11:01,473 INFO L225 Difference]: With dead ends: 39 [2020-10-19 22:11:01,473 INFO L226 Difference]: Without dead ends: 28 [2020-10-19 22:11:01,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-10-19 22:11:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-19 22:11:01,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2020-10-19 22:11:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-19 22:11:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-10-19 22:11:01,480 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 20 [2020-10-19 22:11:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:11:01,481 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-10-19 22:11:01,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 22:11:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-10-19 22:11:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 22:11:01,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:11:01,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:11:01,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:11:01,696 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:11:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:11:01,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1608161903, now seen corresponding path program 1 times [2020-10-19 22:11:01,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:11:01,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561487047] [2020-10-19 22:11:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:11:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:11:01,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:11:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:11:01,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:11:01,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:11:01,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:11:01,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:11:01,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:11:01 BoogieIcfgContainer [2020-10-19 22:11:01,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:11:01,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:11:01,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:11:01,861 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:11:01,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:10:59" (3/4) ... [2020-10-19 22:11:01,867 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:11:01,924 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:11:01,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:11:01,927 INFO L168 Benchmark]: Toolchain (without parser) took 2738.26 ms. Allocated memory was 38.8 MB in the beginning and 49.8 MB in the end (delta: 11.0 MB). Free memory was 16.8 MB in the beginning and 23.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,927 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 30.4 MB. Free memory was 5.8 MB in the beginning and 5.8 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.52 ms. Allocated memory was 38.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). Free memory was 15.9 MB in the beginning and 15.7 MB in the end (delta: 246.1 kB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 39.8 MB. Free memory was 15.5 MB in the beginning and 13.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,930 INFO L168 Benchmark]: Boogie Preprocessor took 28.18 ms. Allocated memory is still 39.8 MB. Free memory was 13.8 MB in the beginning and 12.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,930 INFO L168 Benchmark]: RCFGBuilder took 351.95 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 12.2 MB in the beginning and 10.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,931 INFO L168 Benchmark]: TraceAbstraction took 1936.45 ms. Allocated memory was 40.9 MB in the beginning and 49.8 MB in the end (delta: 8.9 MB). Free memory was 10.4 MB in the beginning and 26.3 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-19 22:11:01,932 INFO L168 Benchmark]: Witness Printer took 63.95 ms. Allocated memory is still 49.8 MB. Free memory was 26.3 MB in the beginning and 23.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:11:01,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 30.4 MB. Free memory was 5.8 MB in the beginning and 5.8 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 297.52 ms. Allocated memory was 38.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). Free memory was 15.9 MB in the beginning and 15.7 MB in the end (delta: 246.1 kB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 39.8 MB. Free memory was 15.5 MB in the beginning and 13.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 28.18 ms. Allocated memory is still 39.8 MB. Free memory was 13.8 MB in the beginning and 12.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 351.95 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 12.2 MB in the beginning and 10.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1936.45 ms. Allocated memory was 40.9 MB in the beginning and 49.8 MB in the end (delta: 8.9 MB). Free memory was 10.4 MB in the beginning and 26.3 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 63.95 ms. Allocated memory is still 49.8 MB. Free memory was 26.3 MB in the beginning and 23.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 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: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i