./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ss1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer --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 e031ef2556c7b65c227cf4680a42fedd84ef69fd ....................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:57:58,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:58,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:58,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:58,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:58,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:58,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:58,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:58,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:58,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:58,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:58,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:58,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:58,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:58,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:58,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:58,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:58,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:58,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:58,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:58,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:58,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:58,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:58,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:58,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:58,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:58,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:58,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:58,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:58,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:58,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:58,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:58,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:58,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:58,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:58,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:58,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:58,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:58,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:58,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:58,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:58,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:58,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:58,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:58,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:58,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:58,951 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:58,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:58,952 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:58,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:58,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:58,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:58,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:58,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:58,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:58,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:58,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:58,955 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:58,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:58,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:58,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:58,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:58,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:58,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:58,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:58,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:58,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:58,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:58,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:58,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:58,958 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer 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 -> e031ef2556c7b65c227cf4680a42fedd84ef69fd [2019-11-25 08:57:59,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:59,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:59,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:59,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:59,107 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:59,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/../../sv-benchmarks/c/array-fpi/ss1f.c [2019-11-25 08:57:59,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/data/bfea700e8/e7f088c12ceb402ca4897471fb945e1b/FLAG9453ab83f [2019-11-25 08:57:59,514 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:59,515 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/sv-benchmarks/c/array-fpi/ss1f.c [2019-11-25 08:57:59,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/data/bfea700e8/e7f088c12ceb402ca4897471fb945e1b/FLAG9453ab83f [2019-11-25 08:57:59,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/data/bfea700e8/e7f088c12ceb402ca4897471fb945e1b [2019-11-25 08:57:59,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:59,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:59,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:59,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:59,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:59,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:59" (1/1) ... [2019-11-25 08:57:59,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fed322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:59, skipping insertion in model container [2019-11-25 08:57:59,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:59" (1/1) ... [2019-11-25 08:57:59,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:59,926 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:00,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:00,141 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:00,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:00,250 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:00,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00 WrapperNode [2019-11-25 08:58:00,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:00,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:00,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:00,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:00,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:00,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:00,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:00,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:00,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... [2019-11-25 08:58:00,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:00,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:00,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:00,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:00,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/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 [2019-11-25 08:58:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:58:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:58:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:58:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:58:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:58:00,609 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:00,609 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-25 08:58:00,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:00 BoogieIcfgContainer [2019-11-25 08:58:00,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:00,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:58:00,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:58:00,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:58:00,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:59" (1/3) ... [2019-11-25 08:58:00,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624755b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:00, skipping insertion in model container [2019-11-25 08:58:00,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:00" (2/3) ... [2019-11-25 08:58:00,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624755b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:00, skipping insertion in model container [2019-11-25 08:58:00,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:00" (3/3) ... [2019-11-25 08:58:00,618 INFO L109 eAbstractionObserver]: Analyzing ICFG ss1f.c [2019-11-25 08:58:00,626 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:58:00,632 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:58:00,642 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:58:00,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:58:00,694 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:58:00,694 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:58:00,694 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:00,694 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:00,695 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:58:00,695 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:00,695 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:58:00,708 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-25 08:58:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:58:00,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:00,736 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:00,736 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:00,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:00,742 INFO L82 PathProgramCache]: Analyzing trace with hash 920027386, now seen corresponding path program 1 times [2019-11-25 08:58:00,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:00,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084156057] [2019-11-25 08:58:00,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:00,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084156057] [2019-11-25 08:58:00,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:58:00,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:58:00,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900847576] [2019-11-25 08:58:00,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:58:00,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:00,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:58:00,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:58:00,922 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-25 08:58:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:00,935 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-25 08:58:00,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:58:00,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-25 08:58:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:58:00,943 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:58:00,943 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:58:00,946 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 [2019-11-25 08:58:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:58:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:58:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:58:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-25 08:58:00,971 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2019-11-25 08:58:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:58:00,972 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-25 08:58:00,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:58:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-25 08:58:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:58:00,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:00,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:00,973 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:00,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:00,973 INFO L82 PathProgramCache]: Analyzing trace with hash 232180998, now seen corresponding path program 1 times [2019-11-25 08:58:00,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:00,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983123107] [2019-11-25 08:58:00,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:00,989 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:58:00,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015584935] [2019-11-25 08:58:00,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/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 [2019-11-25 08:58:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:01,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:58:01,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:01,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983123107] [2019-11-25 08:58:01,097 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:58:01,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015584935] [2019-11-25 08:58:01,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:58:01,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:58:01,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409665009] [2019-11-25 08:58:01,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:58:01,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:01,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:58:01,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:58:01,103 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2019-11-25 08:58:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:01,174 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-25 08:58:01,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:58:01,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-25 08:58:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:58:01,176 INFO L225 Difference]: With dead ends: 33 [2019-11-25 08:58:01,176 INFO L226 Difference]: Without dead ends: 20 [2019-11-25 08:58:01,177 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:58:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-25 08:58:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-25 08:58:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-25 08:58:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-25 08:58:01,181 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-25 08:58:01,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:58:01,182 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-25 08:58:01,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:58:01,182 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-25 08:58:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:58:01,182 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:01,183 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:01,383 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:58:01,384 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1949301912, now seen corresponding path program 1 times [2019-11-25 08:58:01,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:01,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584415883] [2019-11-25 08:58:01,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:01,411 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:58:01,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33629688] [2019-11-25 08:58:01,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/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 [2019-11-25 08:58:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:01,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:58:01,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:58:01,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584415883] [2019-11-25 08:58:01,488 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:58:01,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33629688] [2019-11-25 08:58:01,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:58:01,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:58:01,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136512690] [2019-11-25 08:58:01,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:58:01,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:01,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:58:01,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:58:01,490 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-11-25 08:58:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:01,556 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-25 08:58:01,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:58:01,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-25 08:58:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:58:01,557 INFO L225 Difference]: With dead ends: 36 [2019-11-25 08:58:01,557 INFO L226 Difference]: Without dead ends: 26 [2019-11-25 08:58:01,558 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:58:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-25 08:58:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-25 08:58:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:58:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-25 08:58:01,563 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 15 [2019-11-25 08:58:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:58:01,563 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-25 08:58:01,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:58:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-25 08:58:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:58:01,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:01,564 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] [2019-11-25 08:58:01,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:58:01,765 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:01,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1949747954, now seen corresponding path program 1 times [2019-11-25 08:58:01,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:01,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654882039] [2019-11-25 08:58:01,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:01,786 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:58:01,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509069826] [2019-11-25 08:58:01,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/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 [2019-11-25 08:58:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:01,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:01,876 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:58:02,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:58:02,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:58:02 BoogieIcfgContainer [2019-11-25 08:58:02,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:58:02,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:02,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:02,108 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:02,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:00" (3/4) ... [2019-11-25 08:58:02,110 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:58:02,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef39b193-9445-4d6a-a556-0e0d798c685c/bin/uautomizer/witness.graphml [2019-11-25 08:58:02,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:02,161 INFO L168 Benchmark]: Toolchain (without parser) took 2268.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:02,162 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:02,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:02,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:02,163 INFO L168 Benchmark]: Boogie Preprocessor took 26.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:02,164 INFO L168 Benchmark]: RCFGBuilder took 294.88 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:02,164 INFO L168 Benchmark]: TraceAbstraction took 1496.00 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:02,165 INFO L168 Benchmark]: Witness Printer took 51.78 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:02,167 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.88 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1496.00 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.78 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: 5.4 MB). Peak memory consumption was 5.4 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