./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s12iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s12iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/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 be2a88bc5308a06209a097ae96db628ecce7cca6 ...................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 01:27:49,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:27:49,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:27:49,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:27:49,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:27:49,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:27:49,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:27:49,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:27:49,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:27:49,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:27:49,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:27:49,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:27:49,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:27:49,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:27:49,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:27:49,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:27:49,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:27:49,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:27:49,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:27:49,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:27:49,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:27:49,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:27:49,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:27:49,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:27:49,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:27:49,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:27:49,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:27:49,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:27:49,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:27:49,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:27:49,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:27:49,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:27:49,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:27:49,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:27:49,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:27:49,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:27:49,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:27:49,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:27:49,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:27:49,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:27:49,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:27:49,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:27:49,966 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:27:49,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:27:49,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:27:49,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:27:49,968 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:27:49,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:27:49,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:27:49,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:27:49,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:27:49,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:27:49,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:27:49,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:27:49,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:27:49,971 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:27:49,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:27:49,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:27:49,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:27:49,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:27:49,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:27:49,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:27:49,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:27:49,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:27:49,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:27:49,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:27:49,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:27:49,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:27:49,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:27:49,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:27:49,975 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_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/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 -> be2a88bc5308a06209a097ae96db628ecce7cca6 [2019-11-20 01:27:50,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:27:50,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:27:50,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:27:50,145 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:27:50,145 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:27:50,146 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s12iff.c [2019-11-20 01:27:50,203 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/data/fe5f87b43/009331e7c7b4442d88001a9c8ffe2bcd/FLAGf32ee96a1 [2019-11-20 01:27:50,656 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:27:50,657 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/sv-benchmarks/c/array-fpi/s12iff.c [2019-11-20 01:27:50,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/data/fe5f87b43/009331e7c7b4442d88001a9c8ffe2bcd/FLAGf32ee96a1 [2019-11-20 01:27:51,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/data/fe5f87b43/009331e7c7b4442d88001a9c8ffe2bcd [2019-11-20 01:27:51,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:27:51,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:27:51,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:27:51,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:27:51,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:27:51,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51, skipping insertion in model container [2019-11-20 01:27:51,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:27:51,085 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:27:51,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:27:51,413 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:27:51,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:27:51,455 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:27:51,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51 WrapperNode [2019-11-20 01:27:51,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:27:51,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:27:51,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:27:51,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:27:51,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:27:51,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:27:51,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:27:51,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:27:51,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... [2019-11-20 01:27:51,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:27:51,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:27:51,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:27:51,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:27:51,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/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 [2019-11-20 01:27:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:27:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:27:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 01:27:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:27:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:27:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:27:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:27:51,980 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:27:51,980 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 01:27:51,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:51 BoogieIcfgContainer [2019-11-20 01:27:51,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:27:51,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:27:51,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:27:51,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:27:51,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:27:51" (1/3) ... [2019-11-20 01:27:51,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc5e7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:27:51, skipping insertion in model container [2019-11-20 01:27:51,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:27:51" (2/3) ... [2019-11-20 01:27:51,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc5e7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:27:51, skipping insertion in model container [2019-11-20 01:27:51,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:51" (3/3) ... [2019-11-20 01:27:51,991 INFO L109 eAbstractionObserver]: Analyzing ICFG s12iff.c [2019-11-20 01:27:52,001 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:27:52,008 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:27:52,021 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:27:52,055 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:27:52,063 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:27:52,063 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:27:52,063 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:27:52,063 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:27:52,064 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:27:52,064 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:27:52,064 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:27:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-20 01:27:52,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:27:52,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:27:52,099 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:52,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:27:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:52,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1306747820, now seen corresponding path program 1 times [2019-11-20 01:27:52,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:52,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833826079] [2019-11-20 01:27:52,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:27:52,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833826079] [2019-11-20 01:27:52,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:52,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:27:52,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468381896] [2019-11-20 01:27:52,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:27:52,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:52,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:27:52,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:27:52,318 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-20 01:27:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:52,335 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2019-11-20 01:27:52,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:27:52,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 01:27:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:27:52,345 INFO L225 Difference]: With dead ends: 37 [2019-11-20 01:27:52,345 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 01:27:52,348 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 [2019-11-20 01:27:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 01:27:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 01:27:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 01:27:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-20 01:27:52,380 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-20 01:27:52,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:27:52,381 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-20 01:27:52,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:27:52,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-20 01:27:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:27:52,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:27:52,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:52,383 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:27:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:52,383 INFO L82 PathProgramCache]: Analyzing trace with hash -875427960, now seen corresponding path program 1 times [2019-11-20 01:27:52,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:52,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575355711] [2019-11-20 01:27:52,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:27:52,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575355711] [2019-11-20 01:27:52,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:52,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:27:52,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035366555] [2019-11-20 01:27:52,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:27:52,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:52,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:27:52,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:27:52,502 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-20 01:27:52,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:52,597 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-20 01:27:52,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:27:52,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-20 01:27:52,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:27:52,599 INFO L225 Difference]: With dead ends: 31 [2019-11-20 01:27:52,599 INFO L226 Difference]: Without dead ends: 19 [2019-11-20 01:27:52,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:27:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-20 01:27:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-20 01:27:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 01:27:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-20 01:27:52,606 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2019-11-20 01:27:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:27:52,607 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-20 01:27:52,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:27:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-20 01:27:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 01:27:52,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:27:52,608 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:52,609 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:27:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash -100045206, now seen corresponding path program 1 times [2019-11-20 01:27:52,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:52,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445868236] [2019-11-20 01:27:52,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:27:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 01:27:52,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445868236] [2019-11-20 01:27:52,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:27:52,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:27:52,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59296369] [2019-11-20 01:27:52,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 01:27:52,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:27:52,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 01:27:52,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 01:27:52,688 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-20 01:27:52,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:27:52,804 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2019-11-20 01:27:52,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 01:27:52,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 01:27:52,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:27:52,806 INFO L225 Difference]: With dead ends: 33 [2019-11-20 01:27:52,806 INFO L226 Difference]: Without dead ends: 25 [2019-11-20 01:27:52,806 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 01:27:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-20 01:27:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2019-11-20 01:27:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 01:27:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-20 01:27:52,811 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2019-11-20 01:27:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:27:52,812 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-20 01:27:52,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 01:27:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-20 01:27:52,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 01:27:52,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:27:52,813 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:27:52,813 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:27:52,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:27:52,814 INFO L82 PathProgramCache]: Analyzing trace with hash -682929213, now seen corresponding path program 1 times [2019-11-20 01:27:52,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:27:52,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44435415] [2019-11-20 01:27:52,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:27:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:27:52,911 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:27:52,911 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:27:52,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:27:52 BoogieIcfgContainer [2019-11-20 01:27:52,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:27:52,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:27:52,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:27:52,949 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:27:52,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:27:51" (3/4) ... [2019-11-20 01:27:52,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:27:53,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6f3c61ae-b6b6-45cc-bb9e-2c2e60b099e6/bin/uautomizer/witness.graphml [2019-11-20 01:27:53,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:27:53,014 INFO L168 Benchmark]: Toolchain (without parser) took 1981.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -86.5 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:27:53,015 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-20 01:27:53,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:27:53,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.51 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. [2019-11-20 01:27:53,017 INFO L168 Benchmark]: Boogie Preprocessor took 33.32 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. [2019-11-20 01:27:53,018 INFO L168 Benchmark]: RCFGBuilder took 444.72 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:27:53,019 INFO L168 Benchmark]: TraceAbstraction took 964.86 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:27:53,020 INFO L168 Benchmark]: Witness Printer took 63.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:27:53,023 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 423.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.51 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 33.32 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 444.72 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 964.86 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 1 [L27] i=0 VAL [N=1] [L27] COND TRUE i