./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2f.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_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/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 564056b784b90a3931792cc012447154b9653601 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:57:36,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:36,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:36,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:36,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:36,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:36,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:36,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:36,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:36,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:36,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:36,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:36,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:36,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:36,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:36,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:36,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:36,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:36,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:36,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:36,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:36,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:36,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:36,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:36,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:36,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:36,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:36,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:36,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:36,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:36,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:36,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:36,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:36,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:36,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:36,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:36,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:36,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:36,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:36,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:36,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:36,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:36,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:36,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:36,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:36,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:36,997 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:36,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:36,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:36,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:36,998 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:36,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:36,999 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:36,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:36,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:36,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:37,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:37,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:37,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:37,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:37,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:37,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:37,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:37,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:37,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:37,001 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_37ef113d-683f-4d99-9c52-a97b3405396c/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 -> 564056b784b90a3931792cc012447154b9653601 [2019-11-25 08:57:37,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:37,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:37,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:37,148 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:37,148 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:37,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/../../sv-benchmarks/c/array-fpi/res2f.c [2019-11-25 08:57:37,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/data/6a119920a/00f960a727ff4243b0a8fb03a9a0f692/FLAG37b272beb [2019-11-25 08:57:37,600 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:37,601 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/sv-benchmarks/c/array-fpi/res2f.c [2019-11-25 08:57:37,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/data/6a119920a/00f960a727ff4243b0a8fb03a9a0f692/FLAG37b272beb [2019-11-25 08:57:37,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/data/6a119920a/00f960a727ff4243b0a8fb03a9a0f692 [2019-11-25 08:57:37,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:37,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:37,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:37,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:37,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:37,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef80654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37, skipping insertion in model container [2019-11-25 08:57:37,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:37,659 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:37,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:37,877 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:37,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:37,912 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37 WrapperNode [2019-11-25 08:57:37,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:37,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:37,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:37,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:37,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:37,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:37,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:37,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:37,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... [2019-11-25 08:57:37,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:37,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:37,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:37,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:37,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/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 08:57:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:57:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:38,386 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:38,386 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:57:38,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:38 BoogieIcfgContainer [2019-11-25 08:57:38,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:38,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:38,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:38,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:38,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:37" (1/3) ... [2019-11-25 08:57:38,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f349bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:38, skipping insertion in model container [2019-11-25 08:57:38,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:37" (2/3) ... [2019-11-25 08:57:38,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f349bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:38, skipping insertion in model container [2019-11-25 08:57:38,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:38" (3/3) ... [2019-11-25 08:57:38,394 INFO L109 eAbstractionObserver]: Analyzing ICFG res2f.c [2019-11-25 08:57:38,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:38,408 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:57:38,416 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:57:38,434 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:38,434 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:38,435 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:38,435 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:38,435 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:38,435 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:38,435 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:38,436 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-25 08:57:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:57:38,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:38,455 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:38,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:38,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:38,461 INFO L82 PathProgramCache]: Analyzing trace with hash -81924726, now seen corresponding path program 1 times [2019-11-25 08:57:38,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:38,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136715065] [2019-11-25 08:57:38,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:38,587 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 08:57:38,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136715065] [2019-11-25 08:57:38,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:38,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:57:38,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357079298] [2019-11-25 08:57:38,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:57:38,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:38,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:57:38,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:57:38,605 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-25 08:57:38,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:38,619 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-25 08:57:38,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:57:38,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-25 08:57:38,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:38,627 INFO L225 Difference]: With dead ends: 51 [2019-11-25 08:57:38,627 INFO L226 Difference]: Without dead ends: 24 [2019-11-25 08:57:38,629 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 08:57:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-25 08:57:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-25 08:57:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-25 08:57:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-25 08:57:38,657 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 17 [2019-11-25 08:57:38,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:38,657 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-25 08:57:38,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:57:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-25 08:57:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:57:38,658 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:38,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:38,659 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:38,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:38,659 INFO L82 PathProgramCache]: Analyzing trace with hash -2118036586, now seen corresponding path program 1 times [2019-11-25 08:57:38,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:38,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621751835] [2019-11-25 08:57:38,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:38,773 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 08:57:38,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621751835] [2019-11-25 08:57:38,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:38,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:57:38,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800795927] [2019-11-25 08:57:38,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:57:38,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:38,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:57:38,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:57:38,777 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2019-11-25 08:57:38,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:38,880 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-11-25 08:57:38,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:57:38,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-25 08:57:38,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:38,882 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:57:38,882 INFO L226 Difference]: Without dead ends: 35 [2019-11-25 08:57:38,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:38,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-25 08:57:38,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-25 08:57:38,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-25 08:57:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2019-11-25 08:57:38,889 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 17 [2019-11-25 08:57:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:38,889 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-11-25 08:57:38,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:57:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2019-11-25 08:57:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-25 08:57:38,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:38,890 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:38,890 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:38,891 INFO L82 PathProgramCache]: Analyzing trace with hash 434573880, now seen corresponding path program 1 times [2019-11-25 08:57:38,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:38,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207887249] [2019-11-25 08:57:38,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:38,939 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 08:57:38,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207887249] [2019-11-25 08:57:38,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:38,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:57:38,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178269704] [2019-11-25 08:57:38,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:57:38,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:38,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:57:38,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:57:38,941 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 3 states. [2019-11-25 08:57:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:39,010 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2019-11-25 08:57:39,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:57:39,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-25 08:57:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:39,011 INFO L225 Difference]: With dead ends: 67 [2019-11-25 08:57:39,012 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:57:39,012 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 [2019-11-25 08:57:39,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:57:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-11-25 08:57:39,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-25 08:57:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2019-11-25 08:57:39,030 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 19 [2019-11-25 08:57:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:39,030 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-11-25 08:57:39,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:57:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2019-11-25 08:57:39,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:57:39,032 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:39,032 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 08:57:39,033 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:39,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:39,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1237481242, now seen corresponding path program 1 times [2019-11-25 08:57:39,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:39,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456113432] [2019-11-25 08:57:39,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:57:39,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456113432] [2019-11-25 08:57:39,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:39,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:57:39,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068246047] [2019-11-25 08:57:39,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:57:39,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:39,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:57:39,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:57:39,118 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand 4 states. [2019-11-25 08:57:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:39,192 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-11-25 08:57:39,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:57:39,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-25 08:57:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:39,193 INFO L225 Difference]: With dead ends: 59 [2019-11-25 08:57:39,193 INFO L226 Difference]: Without dead ends: 36 [2019-11-25 08:57:39,194 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 [2019-11-25 08:57:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-25 08:57:39,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-11-25 08:57:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-25 08:57:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-11-25 08:57:39,199 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 21 [2019-11-25 08:57:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:39,199 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-11-25 08:57:39,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:57:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-11-25 08:57:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:57:39,200 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:39,200 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:39,201 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:39,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:39,202 INFO L82 PathProgramCache]: Analyzing trace with hash 590714914, now seen corresponding path program 1 times [2019-11-25 08:57:39,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:39,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759472206] [2019-11-25 08:57:39,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:39,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:39,377 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:57:39,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:39 BoogieIcfgContainer [2019-11-25 08:57:39,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:39,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:39,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:39,426 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:39,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:38" (3/4) ... [2019-11-25 08:57:39,429 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:57:39,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37ef113d-683f-4d99-9c52-a97b3405396c/bin/uautomizer/witness.graphml [2019-11-25 08:57:39,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:39,489 INFO L168 Benchmark]: Toolchain (without parser) took 1865.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -84.3 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,490 INFO L168 Benchmark]: CDTParser took 0.23 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 08:57:39,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.29 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 08:57:39,491 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,491 INFO L168 Benchmark]: RCFGBuilder took 411.33 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 08:57:39,492 INFO L168 Benchmark]: TraceAbstraction took 1037.66 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: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,492 INFO L168 Benchmark]: Witness Printer took 61.44 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. [2019-11-25 08:57:39,494 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 285.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.29 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 27.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 411.33 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 1037.66 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: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. * Witness Printer took 61.44 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); [L25] int *b = malloc(sizeof(int)*N); [L26] int *c = malloc(sizeof(int)*N); [L28] sum[0] = 1 [L29] i=0 VAL [N=1] [L29] COND TRUE i