./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ssinaf.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/ssinaf.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 ad20349efcd64c79eb05ad4ed5ee62d9ecb643df ....................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:37:37,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:37:37,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:37:37,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:37:37,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:37:37,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:37:37,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:37:37,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:37:37,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:37:37,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:37:37,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:37:37,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:37:37,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:37:37,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:37:37,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:37:37,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:37:37,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:37:37,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:37:37,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:37:37,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:37:37,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:37:37,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:37:37,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:37:37,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:37:37,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:37:37,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:37:37,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:37:37,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:37:37,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:37:37,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:37:37,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:37:37,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:37:37,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:37:37,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:37:37,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:37:37,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:37:37,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:37:37,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:37:37,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:37:37,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:37:37,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:37:37,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:37:37,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:37:37,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:37:37,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:37:37,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:37:37,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:37:37,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:37:37,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:37:37,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:37:37,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:37:37,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:37:37,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:37:37,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:37:37,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:37:37,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:37:37,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:37:37,792 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:37:37,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:37:37,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:37:37,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:37:37,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:37:37,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:37:37,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:37,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:37:37,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:37:37,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:37:37,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:37:37,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:37:37,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:37:37,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:37:37,796 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 -> ad20349efcd64c79eb05ad4ed5ee62d9ecb643df [2019-11-28 15:37:38,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:37:38,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:37:38,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:37:38,102 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:37:38,103 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:37:38,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-28 15:37:38,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5d02575/092bbcab9c8f4577be98196e0a8db725/FLAGba8e7b21b [2019-11-28 15:37:38,599 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:37:38,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-28 15:37:38,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5d02575/092bbcab9c8f4577be98196e0a8db725/FLAGba8e7b21b [2019-11-28 15:37:38,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea5d02575/092bbcab9c8f4577be98196e0a8db725 [2019-11-28 15:37:38,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:37:38,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:37:38,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:38,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:37:38,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:37:38,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:38" (1/1) ... [2019-11-28 15:37:38,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccbbb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:38, skipping insertion in model container [2019-11-28 15:37:38,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:38" (1/1) ... [2019-11-28 15:37:38,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:37:39,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:37:39,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:39,223 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:37:39,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:39,277 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:37:39,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39 WrapperNode [2019-11-28 15:37:39,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:39,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:39,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:37:39,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:37:39,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:39,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:37:39,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:37:39,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:37:39,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (1/1) ... [2019-11-28 15:37:39,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:37:39,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:37:39,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:37:39,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:37:39,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (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 15:37:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 15:37:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:37:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:37:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:37:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:37:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:37:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 15:37:39,812 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:37:39,812 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 15:37:39,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:39 BoogieIcfgContainer [2019-11-28 15:37:39,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:37:39,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:37:39,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:37:39,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:37:39,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:38" (1/3) ... [2019-11-28 15:37:39,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d9c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:39, skipping insertion in model container [2019-11-28 15:37:39,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:39" (2/3) ... [2019-11-28 15:37:39,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d9c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:39, skipping insertion in model container [2019-11-28 15:37:39,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:39" (3/3) ... [2019-11-28 15:37:39,827 INFO L109 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2019-11-28 15:37:39,843 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:37:39,849 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:37:39,861 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:37:39,881 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:37:39,882 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:37:39,882 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:37:39,882 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:37:39,882 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:37:39,882 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:37:39,882 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:37:39,883 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:37:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 15:37:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 15:37:39,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:39,903 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:39,903 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:39,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1942303561, now seen corresponding path program 1 times [2019-11-28 15:37:39,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:39,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271001715] [2019-11-28 15:37:39,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:40,046 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 15:37:40,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271001715] [2019-11-28 15:37:40,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:40,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:37:40,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718513676] [2019-11-28 15:37:40,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:37:40,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:40,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:37:40,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:40,071 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-28 15:37:40,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:40,091 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-28 15:37:40,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:37:40,093 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 15:37:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:40,103 INFO L225 Difference]: With dead ends: 51 [2019-11-28 15:37:40,104 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 15:37:40,107 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 15:37:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 15:37:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 15:37:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 15:37:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-28 15:37:40,160 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2019-11-28 15:37:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:40,162 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-28 15:37:40,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:37:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-28 15:37:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 15:37:40,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:40,164 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:40,164 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:40,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:40,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2009888043, now seen corresponding path program 1 times [2019-11-28 15:37:40,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:40,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068748120] [2019-11-28 15:37:40,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:40,190 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:40,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396522102] [2019-11-28 15:37:40,191 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 15:37:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:40,265 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:40,272 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:40,306 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 15:37:40,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068748120] [2019-11-28 15:37:40,307 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:40,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396522102] [2019-11-28 15:37:40,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:40,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:37:40,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628326312] [2019-11-28 15:37:40,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:37:40,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:40,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:37:40,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:40,311 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-11-28 15:37:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:40,383 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-11-28 15:37:40,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:37:40,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-28 15:37:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:40,385 INFO L225 Difference]: With dead ends: 45 [2019-11-28 15:37:40,386 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 15:37:40,387 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 15:37:40,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 15:37:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-28 15:37:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 15:37:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-28 15:37:40,394 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2019-11-28 15:37:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:40,395 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-28 15:37:40,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:37:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-28 15:37:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 15:37:40,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:40,396 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 15:37:40,600 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:40,601 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:40,602 INFO L82 PathProgramCache]: Analyzing trace with hash 602672009, now seen corresponding path program 1 times [2019-11-28 15:37:40,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:40,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389462769] [2019-11-28 15:37:40,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:40,643 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:40,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282137266] [2019-11-28 15:37:40,644 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 15:37:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:40,701 INFO L264 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:40,703 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:40,720 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 15:37:40,721 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389462769] [2019-11-28 15:37:40,721 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:40,721 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282137266] [2019-11-28 15:37:40,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:40,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:37:40,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208255371] [2019-11-28 15:37:40,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:37:40,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:40,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:37:40,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:40,723 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-28 15:37:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:40,838 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2019-11-28 15:37:40,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:37:40,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-28 15:37:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:40,840 INFO L225 Difference]: With dead ends: 56 [2019-11-28 15:37:40,840 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 15:37:40,841 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 15:37:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 15:37:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2019-11-28 15:37:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 15:37:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-28 15:37:40,852 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-28 15:37:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:40,853 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-28 15:37:40,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:37:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-28 15:37:40,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 15:37:40,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:40,856 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:41,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:41,065 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:41,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash 126601089, now seen corresponding path program 1 times [2019-11-28 15:37:41,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:41,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390544342] [2019-11-28 15:37:41,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:41,107 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:41,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152348770] [2019-11-28 15:37:41,108 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 15:37:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:41,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:37:41,218 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:37:41,419 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:41,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:41 BoogieIcfgContainer [2019-11-28 15:37:41,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:37:41,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:37:41,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:37:41,463 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:37:41,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:39" (3/4) ... [2019-11-28 15:37:41,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:37:41,525 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:37:41,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:37:41,528 INFO L168 Benchmark]: Toolchain (without parser) took 2559.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -52.9 MB). Peak memory consumption was 87.0 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,529 INFO L168 Benchmark]: CDTParser took 0.33 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 15:37:41,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.91 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 15:37:41,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,531 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,532 INFO L168 Benchmark]: RCFGBuilder took 406.17 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,533 INFO L168 Benchmark]: TraceAbstraction took 1646.53 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: 89.9 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,533 INFO L168 Benchmark]: Witness Printer took 63.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:41,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 308.91 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 98.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 406.17 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1646.53 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: 89.9 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. * Witness Printer took 63.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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 sum[1]; [L24] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i