./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-27 22:33:07,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:33:07,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:33:07,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:33:07,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:33:07,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:33:07,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:33:07,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:33:07,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:33:07,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:33:07,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:33:07,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:33:07,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:33:07,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:33:07,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:33:07,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:33:07,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:33:07,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:33:07,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:33:07,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:33:07,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:33:07,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:33:07,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:33:07,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:33:07,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:33:07,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:33:07,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:33:07,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:33:07,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:33:07,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:33:07,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:33:07,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:33:07,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:33:07,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:33:07,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:33:07,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:33:07,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:33:07,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:33:07,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:33:07,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:33:07,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:33:07,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:33:07,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:33:07,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:33:07,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:33:07,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:33:07,709 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:33:07,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:33:07,710 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:33:07,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:33:07,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:33:07,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:33:07,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:33:07,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:33:07,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:33:07,711 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:33:07,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:33:07,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:33:07,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:33:07,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:33:07,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:33:07,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:33:07,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:33:07,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:33:07,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:33:07,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:33:07,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:33:07,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:33:07,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:33:07,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:33:07,716 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 [2019-11-27 22:33:08,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:33:08,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:33:08,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:33:08,118 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:33:08,119 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:33:08,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-27 22:33:08,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0469de9/b1c0b630d907417f8f8032e23b87036c/FLAG4074501b3 [2019-11-27 22:33:08,647 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:33:08,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-27 22:33:08,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0469de9/b1c0b630d907417f8f8032e23b87036c/FLAG4074501b3 [2019-11-27 22:33:09,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0469de9/b1c0b630d907417f8f8032e23b87036c [2019-11-27 22:33:09,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:33:09,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:33:09,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:09,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:33:09,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:33:09,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23389266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09, skipping insertion in model container [2019-11-27 22:33:09,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:33:09,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:33:09,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:09,306 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:33:09,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:09,350 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:33:09,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09 WrapperNode [2019-11-27 22:33:09,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:09,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:09,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:33:09,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:33:09,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:09,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:33:09,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:33:09,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:33:09,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (1/1) ... [2019-11-27 22:33:09,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:33:09,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:33:09,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:33:09,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:33:09,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (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 [2019-11-27 22:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:33:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:33:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:33:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:33:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:33:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:33:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:33:09,901 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:33:09,902 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-27 22:33:09,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:09 BoogieIcfgContainer [2019-11-27 22:33:09,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:33:09,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:33:09,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:33:09,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:33:09,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:33:09" (1/3) ... [2019-11-27 22:33:09,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351ac3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:09, skipping insertion in model container [2019-11-27 22:33:09,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:09" (2/3) ... [2019-11-27 22:33:09,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351ac3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:09, skipping insertion in model container [2019-11-27 22:33:09,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:09" (3/3) ... [2019-11-27 22:33:09,920 INFO L109 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2019-11-27 22:33:09,930 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:33:09,935 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:33:09,946 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:33:09,968 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:33:09,968 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:33:09,968 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:33:09,968 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:33:09,968 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:33:09,969 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:33:09,969 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:33:09,969 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:33:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-27 22:33:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 22:33:09,989 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:09,990 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:09,990 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:09,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1942303561, now seen corresponding path program 1 times [2019-11-27 22:33:10,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:10,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911854803] [2019-11-27 22:33:10,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:10,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:33:10,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911854803] [2019-11-27 22:33:10,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:10,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:33:10,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39055801] [2019-11-27 22:33:10,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:33:10,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:10,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:33:10,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:33:10,159 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-27 22:33:10,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:10,178 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-27 22:33:10,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:33:10,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-27 22:33:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:10,190 INFO L225 Difference]: With dead ends: 51 [2019-11-27 22:33:10,191 INFO L226 Difference]: Without dead ends: 24 [2019-11-27 22:33:10,194 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 [2019-11-27 22:33:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-27 22:33:10,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-27 22:33:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-27 22:33:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-27 22:33:10,235 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2019-11-27 22:33:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:10,236 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-27 22:33:10,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:33:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-27 22:33:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 22:33:10,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:10,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:10,238 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2009888043, now seen corresponding path program 1 times [2019-11-27 22:33:10,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:10,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159533019] [2019-11-27 22:33:10,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:10,262 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:10,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729143153] [2019-11-27 22:33:10,263 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 [2019-11-27 22:33:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:10,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:33:10,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:33:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:33:10,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159533019] [2019-11-27 22:33:10,465 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:33:10,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729143153] [2019-11-27 22:33:10,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:10,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:33:10,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908678169] [2019-11-27 22:33:10,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:33:10,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:10,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:33:10,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:33:10,471 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-11-27 22:33:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:10,552 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-11-27 22:33:10,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:33:10,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-27 22:33:10,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:10,554 INFO L225 Difference]: With dead ends: 45 [2019-11-27 22:33:10,554 INFO L226 Difference]: Without dead ends: 26 [2019-11-27 22:33:10,555 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 [2019-11-27 22:33:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-27 22:33:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-27 22:33:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-27 22:33:10,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-27 22:33:10,562 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2019-11-27 22:33:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:10,562 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-27 22:33:10,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:33:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-27 22:33:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-27 22:33:10,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:10,564 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:10,767 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:10,768 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:10,769 INFO L82 PathProgramCache]: Analyzing trace with hash 602672009, now seen corresponding path program 1 times [2019-11-27 22:33:10,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:10,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637585835] [2019-11-27 22:33:10,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:10,797 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:10,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386501981] [2019-11-27 22:33:10,797 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 [2019-11-27 22:33:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:10,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:33:10,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:33:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-27 22:33:10,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637585835] [2019-11-27 22:33:10,916 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:33:10,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386501981] [2019-11-27 22:33:10,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:10,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:33:10,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890329264] [2019-11-27 22:33:10,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:33:10,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:10,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:33:10,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:33:10,924 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-27 22:33:11,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:11,024 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2019-11-27 22:33:11,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:33:11,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-27 22:33:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:11,027 INFO L225 Difference]: With dead ends: 56 [2019-11-27 22:33:11,027 INFO L226 Difference]: Without dead ends: 40 [2019-11-27 22:33:11,028 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 [2019-11-27 22:33:11,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-27 22:33:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2019-11-27 22:33:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-27 22:33:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-27 22:33:11,035 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-27 22:33:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:11,036 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-27 22:33:11,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:33:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-27 22:33:11,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-27 22:33:11,037 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:11,038 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] [2019-11-27 22:33:11,247 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:11,248 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:11,249 INFO L82 PathProgramCache]: Analyzing trace with hash 126601089, now seen corresponding path program 1 times [2019-11-27 22:33:11,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:11,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016206572] [2019-11-27 22:33:11,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:11,286 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:11,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538694344] [2019-11-27 22:33:11,289 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 [2019-11-27 22:33:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:33:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:33:11,417 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:33:11,417 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:33:11,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:11,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:33:11 BoogieIcfgContainer [2019-11-27 22:33:11,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:33:11,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:33:11,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:33:11,665 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:33:11,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:09" (3/4) ... [2019-11-27 22:33:11,668 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:33:11,731 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:33:11,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:33:11,734 INFO L168 Benchmark]: Toolchain (without parser) took 2713.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 960.4 MB in the beginning and 953.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:11,735 INFO L168 Benchmark]: CDTParser took 0.34 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. [2019-11-27 22:33:11,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.96 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. [2019-11-27 22:33:11,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:11,737 INFO L168 Benchmark]: Boogie Preprocessor took 40.07 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:11,738 INFO L168 Benchmark]: RCFGBuilder took 414.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:11,739 INFO L168 Benchmark]: TraceAbstraction took 1754.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 953.4 MB in the end (delta: 93.5 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:11,739 INFO L168 Benchmark]: Witness Printer took 67.17 ms. Allocated memory is still 1.1 GB. Free memory is still 953.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:33:11,743 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 329.96 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 101.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.07 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 414.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1754.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 953.4 MB in the end (delta: 93.5 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.17 ms. Allocated memory is still 1.1 GB. Free memory is still 953.4 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 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