./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1f.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_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/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 8d91257773214a4dabdd84060376021903a7c216 ...................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:56:03,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:56:03,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:56:03,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:56:03,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:56:03,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:56:03,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:56:03,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:56:03,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:56:03,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:56:03,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:56:03,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:56:03,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:56:03,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:56:03,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:56:03,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:56:03,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:56:03,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:56:03,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:56:03,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:56:03,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:56:03,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:56:03,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:56:03,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:56:03,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:56:03,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:56:03,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:56:03,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:56:03,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:56:03,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:56:03,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:56:03,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:56:03,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:56:03,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:56:03,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:56:03,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:56:03,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:56:03,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:56:03,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:56:03,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:56:03,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:56:03,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:56:03,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:56:03,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:56:03,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:56:03,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:56:03,943 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:56:03,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:56:03,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:56:03,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:56:03,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:56:03,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:56:03,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:56:03,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:56:03,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:56:03,946 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:56:03,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:56:03,946 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:56:03,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:56:03,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:56:03,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:56:03,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:56:03,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:56:03,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:56:03,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:56:03,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:56:03,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:56:03,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:56:03,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:56:03,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:56:03,950 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_f37063c9-1069-437c-9086-18247421c39a/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 -> 8d91257773214a4dabdd84060376021903a7c216 [2019-11-20 10:56:04,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:56:04,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:56:04,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:56:04,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:56:04,154 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:56:04,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/../../sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-20 10:56:04,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/data/197d0f610/79a18b1ac39548e596d2c19dfdff2822/FLAGa08ad61ea [2019-11-20 10:56:04,604 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:56:04,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-20 10:56:04,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/data/197d0f610/79a18b1ac39548e596d2c19dfdff2822/FLAGa08ad61ea [2019-11-20 10:56:04,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/data/197d0f610/79a18b1ac39548e596d2c19dfdff2822 [2019-11-20 10:56:04,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:56:04,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:56:04,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:56:04,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:56:04,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:56:04,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:04" (1/1) ... [2019-11-20 10:56:04,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465a69ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:04, skipping insertion in model container [2019-11-20 10:56:04,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:04" (1/1) ... [2019-11-20 10:56:04,961 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:56:04,977 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:56:05,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:56:05,140 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:56:05,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:56:05,298 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:56:05,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05 WrapperNode [2019-11-20 10:56:05,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:56:05,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:56:05,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:56:05,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:56:05,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:56:05,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:56:05,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:56:05,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:56:05,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... [2019-11-20 10:56:05,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:56:05,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:56:05,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:56:05,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:56:05,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/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 10:56:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:56:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 10:56:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:56:05,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:56:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:56:05,653 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:56:05,654 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 10:56:05,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:05 BoogieIcfgContainer [2019-11-20 10:56:05,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:56:05,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:56:05,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:56:05,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:56:05,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:56:04" (1/3) ... [2019-11-20 10:56:05,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24be2f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:05, skipping insertion in model container [2019-11-20 10:56:05,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:05" (2/3) ... [2019-11-20 10:56:05,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24be2f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:05, skipping insertion in model container [2019-11-20 10:56:05,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:05" (3/3) ... [2019-11-20 10:56:05,663 INFO L109 eAbstractionObserver]: Analyzing ICFG ifeqn1f.c [2019-11-20 10:56:05,672 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:56:05,678 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:56:05,689 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:56:05,710 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:56:05,710 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:56:05,710 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:56:05,711 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:56:05,711 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:56:05,711 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:56:05,711 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:56:05,711 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:56:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-20 10:56:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:56:05,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:56:05,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:56:05,731 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:56:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:56:05,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1201566748, now seen corresponding path program 1 times [2019-11-20 10:56:05,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:56:05,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785059805] [2019-11-20 10:56:05,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:56:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:56:05,902 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 10:56:05,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785059805] [2019-11-20 10:56:05,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:56:05,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:56:05,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397376649] [2019-11-20 10:56:05,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:56:05,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:56:05,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:56:05,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:56:05,921 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-20 10:56:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:56:05,935 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-20 10:56:05,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:56:05,936 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 10:56:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:56:05,943 INFO L225 Difference]: With dead ends: 36 [2019-11-20 10:56:05,943 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 10:56:05,945 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 10:56:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 10:56:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 10:56:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 10:56:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-20 10:56:05,975 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-11-20 10:56:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:56:05,975 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-20 10:56:05,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:56:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-20 10:56:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:56:05,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:56:05,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:56:05,977 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:56:05,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:56:05,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1920794649, now seen corresponding path program 1 times [2019-11-20 10:56:05,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:56:05,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933006877] [2019-11-20 10:56:05,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:56:05,995 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:56:05,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243346764] [2019-11-20 10:56:05,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/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 [2019-11-20 10:56:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:56:06,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:56:06,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:56:06,107 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 10:56:06,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933006877] [2019-11-20 10:56:06,107 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:56:06,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243346764] [2019-11-20 10:56:06,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:56:06,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:56:06,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186290613] [2019-11-20 10:56:06,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:56:06,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:56:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:56:06,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:56:06,110 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-20 10:56:06,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:56:06,186 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-20 10:56:06,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:56:06,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-20 10:56:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:56:06,187 INFO L225 Difference]: With dead ends: 31 [2019-11-20 10:56:06,187 INFO L226 Difference]: Without dead ends: 20 [2019-11-20 10:56:06,188 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 10:56:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-20 10:56:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-20 10:56:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 10:56:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-20 10:56:06,192 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-20 10:56:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:56:06,192 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-20 10:56:06,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:56:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-20 10:56:06,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 10:56:06,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:56:06,197 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:56:06,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:56:06,400 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:56:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:56:06,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1948223762, now seen corresponding path program 1 times [2019-11-20 10:56:06,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:56:06,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198792869] [2019-11-20 10:56:06,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:56:06,437 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:56:06,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426747803] [2019-11-20 10:56:06,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/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 [2019-11-20 10:56:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:56:06,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:56:06,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:56:06,535 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 10:56:06,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198792869] [2019-11-20 10:56:06,536 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:56:06,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426747803] [2019-11-20 10:56:06,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:56:06,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:56:06,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507127468] [2019-11-20 10:56:06,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:56:06,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:56:06,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:56:06,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:56:06,538 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-20 10:56:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:56:06,615 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-20 10:56:06,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:56:06,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 10:56:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:56:06,617 INFO L225 Difference]: With dead ends: 36 [2019-11-20 10:56:06,617 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 10:56:06,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 10:56:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 10:56:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-11-20 10:56:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 10:56:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-20 10:56:06,622 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2019-11-20 10:56:06,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:56:06,623 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-20 10:56:06,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:56:06,623 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-20 10:56:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 10:56:06,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:56:06,624 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:56:06,824 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:56:06,825 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:56:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:56:06,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1326513248, now seen corresponding path program 1 times [2019-11-20 10:56:06,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:56:06,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97473834] [2019-11-20 10:56:06,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:56:06,840 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:56:06,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29913108] [2019-11-20 10:56:06,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/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 [2019-11-20 10:56:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:56:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:56:06,926 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:56:06,926 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:56:07,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:56:07,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:56:07 BoogieIcfgContainer [2019-11-20 10:56:07,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:56:07,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:56:07,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:56:07,154 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:56:07,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:05" (3/4) ... [2019-11-20 10:56:07,157 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:56:07,206 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f37063c9-1069-437c-9086-18247421c39a/bin/uautomizer/witness.graphml [2019-11-20 10:56:07,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:56:07,208 INFO L168 Benchmark]: Toolchain (without parser) took 2262.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -98.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:56:07,209 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:56:07,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:56:07,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.41 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 10:56:07,210 INFO L168 Benchmark]: Boogie Preprocessor took 47.80 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 10:56:07,211 INFO L168 Benchmark]: RCFGBuilder took 260.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:56:07,211 INFO L168 Benchmark]: TraceAbstraction took 1497.30 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: 76.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:56:07,212 INFO L168 Benchmark]: Witness Printer took 52.88 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 10:56:07,214 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.41 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 47.80 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 260.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1497.30 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: 76.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. * Witness Printer took 52.88 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 *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i