./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ssinaf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ssinaf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 ad20349efcd64c79eb05ad4ed5ee62d9ecb643df ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:32:11,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:32:11,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:32:11,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:32:11,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:32:11,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:32:11,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:32:11,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:32:11,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:32:11,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:32:11,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:32:11,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:32:11,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:32:11,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:32:11,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:32:11,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:32:11,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:32:11,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:32:11,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:32:11,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:32:11,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:32:11,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:32:11,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:32:11,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:32:11,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:32:11,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:32:11,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:32:11,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:32:11,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:32:11,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:32:11,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:32:11,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:32:11,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:32:11,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:32:11,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:32:11,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:32:11,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:32:11,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:32:11,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:32:11,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:32:11,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:32:11,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:32:11,552 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:32:11,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:32:11,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:32:11,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:32:11,554 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:32:11,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:32:11,555 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:32:11,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:32:11,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:32:11,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:32:11,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:32:11,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:32:11,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:32:11,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:32:11,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:32:11,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:32:11,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:32:11,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:32:11,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:32:11,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:32:11,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:32:11,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:32:11,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:32:11,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:32:11,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:32:11,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:32:11,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:32:11,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:32:11,560 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_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 -> ad20349efcd64c79eb05ad4ed5ee62d9ecb643df [2019-11-15 21:32:11,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:32:11,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:32:11,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:32:11,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:32:11,600 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:32:11,601 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/../../sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-15 21:32:11,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/data/2b5c64105/19ad05f6d82348bca751aa115c457d3e/FLAG0d83c94e7 [2019-11-15 21:32:12,053 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:32:12,054 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/sv-benchmarks/c/array-fpi/ssinaf.c [2019-11-15 21:32:12,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/data/2b5c64105/19ad05f6d82348bca751aa115c457d3e/FLAG0d83c94e7 [2019-11-15 21:32:12,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/data/2b5c64105/19ad05f6d82348bca751aa115c457d3e [2019-11-15 21:32:12,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:32:12,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:32:12,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:32:12,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:32:12,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:32:12,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a43941d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12, skipping insertion in model container [2019-11-15 21:32:12,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,088 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:32:12,103 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:32:12,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:32:12,412 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:32:12,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:32:12,472 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:32:12,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12 WrapperNode [2019-11-15 21:32:12,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:32:12,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:32:12,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:32:12,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:32:12,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:32:12,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:32:12,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:32:12,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:32:12,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... [2019-11-15 21:32:12,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:32:12,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:32:12,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:32:12,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:32:12,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 [2019-11-15 21:32:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:32:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:32:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 21:32:12,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:32:12,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:32:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:32:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:32:12,971 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:32:12,972 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 21:32:12,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:12 BoogieIcfgContainer [2019-11-15 21:32:12,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:32:12,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:32:12,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:32:12,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:32:12,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:32:12" (1/3) ... [2019-11-15 21:32:12,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678a92b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:32:12, skipping insertion in model container [2019-11-15 21:32:12,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:12" (2/3) ... [2019-11-15 21:32:12,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678a92b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:32:12, skipping insertion in model container [2019-11-15 21:32:12,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:12" (3/3) ... [2019-11-15 21:32:12,980 INFO L109 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2019-11-15 21:32:12,989 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:32:12,995 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:32:13,003 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:32:13,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:32:13,024 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:32:13,024 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:32:13,024 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:32:13,024 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:32:13,024 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:32:13,025 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:32:13,025 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:32:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-15 21:32:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:32:13,043 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:13,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:13,045 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:32:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:13,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1942303561, now seen corresponding path program 1 times [2019-11-15 21:32:13,055 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:13,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530227724] [2019-11-15 21:32:13,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:32:13,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530227724] [2019-11-15 21:32:13,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:32:13,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:32:13,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161272184] [2019-11-15 21:32:13,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 21:32:13,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:32:13,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 21:32:13,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:32:13,188 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-15 21:32:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:32:13,204 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-15 21:32:13,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 21:32:13,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 21:32:13,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:32:13,212 INFO L225 Difference]: With dead ends: 51 [2019-11-15 21:32:13,213 INFO L226 Difference]: Without dead ends: 24 [2019-11-15 21:32:13,215 INFO L600 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 [2019-11-15 21:32:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-15 21:32:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-15 21:32:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-15 21:32:13,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-15 21:32:13,244 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2019-11-15 21:32:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:32:13,245 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-15 21:32:13,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 21:32:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-15 21:32:13,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 21:32:13,246 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:13,246 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:13,246 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:32:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:13,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2009888043, now seen corresponding path program 1 times [2019-11-15 21:32:13,247 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:13,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163790270] [2019-11-15 21:32:13,247 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,247 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:13,266 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 21:32:13,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591510376] [2019-11-15 21:32:13,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 [2019-11-15 21:32:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:13,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:32:13,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:32:13,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:32:13,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163790270] [2019-11-15 21:32:13,378 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 21:32:13,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591510376] [2019-11-15 21:32:13,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:32:13,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:32:13,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373870216] [2019-11-15 21:32:13,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:32:13,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:32:13,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:32:13,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:32:13,383 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-11-15 21:32:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:32:13,467 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-11-15 21:32:13,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:32:13,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-15 21:32:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:32:13,468 INFO L225 Difference]: With dead ends: 45 [2019-11-15 21:32:13,468 INFO L226 Difference]: Without dead ends: 26 [2019-11-15 21:32:13,469 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:32:13,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-15 21:32:13,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-15 21:32:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 21:32:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-15 21:32:13,474 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2019-11-15 21:32:13,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:32:13,475 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-15 21:32:13,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:32:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-15 21:32:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 21:32:13,476 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:13,476 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:13,680 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:32:13,680 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:32:13,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:13,681 INFO L82 PathProgramCache]: Analyzing trace with hash 602672009, now seen corresponding path program 1 times [2019-11-15 21:32:13,681 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:13,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207610331] [2019-11-15 21:32:13,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:13,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:13,701 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 21:32:13,701 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024617074] [2019-11-15 21:32:13,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 [2019-11-15 21:32:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:13,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:32:13,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:32:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 21:32:13,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207610331] [2019-11-15 21:32:13,785 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-15 21:32:13,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024617074] [2019-11-15 21:32:13,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:32:13,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:32:13,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716960566] [2019-11-15 21:32:13,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:32:13,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:32:13,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:32:13,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:32:13,787 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-15 21:32:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:32:13,885 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2019-11-15 21:32:13,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:32:13,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-15 21:32:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:32:13,886 INFO L225 Difference]: With dead ends: 56 [2019-11-15 21:32:13,887 INFO L226 Difference]: Without dead ends: 40 [2019-11-15 21:32:13,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:32:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-15 21:32:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2019-11-15 21:32:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 21:32:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-15 21:32:13,893 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-15 21:32:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:32:13,894 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-15 21:32:13,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:32:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-15 21:32:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 21:32:13,895 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:13,895 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:14,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:32:14,099 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:32:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 126601089, now seen corresponding path program 1 times [2019-11-15 21:32:14,100 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:14,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500417507] [2019-11-15 21:32:14,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:14,100 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:14,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:14,122 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-15 21:32:14,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069025775] [2019-11-15 21:32:14,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/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 [2019-11-15 21:32:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:32:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:32:14,238 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:32:14,238 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:32:14,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:32:14,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:32:14 BoogieIcfgContainer [2019-11-15 21:32:14,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:32:14,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:32:14,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:32:14,482 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:32:14,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:12" (3/4) ... [2019-11-15 21:32:14,484 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 21:32:14,534 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db3acd1c-cfe2-43e2-852f-360683f43b0a/bin/uautomizer/witness.graphml [2019-11-15 21:32:14,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:32:14,536 INFO L168 Benchmark]: Toolchain (without parser) took 2461.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -104.3 MB). Peak memory consumption was 67.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:14,536 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. [2019-11-15 21:32:14,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -219.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:14,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:32:14,538 INFO L168 Benchmark]: Boogie Preprocessor took 57.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:14,539 INFO L168 Benchmark]: RCFGBuilder took 375.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:14,539 INFO L168 Benchmark]: TraceAbstraction took 1506.73 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: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:14,540 INFO L168 Benchmark]: Witness Printer took 52.91 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. [2019-11-15 21:32:14,543 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 399.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -219.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 375.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1506.73 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: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.91 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] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i