./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dcbb1d4539995e5aba39e6053775ca0fac811e ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:12,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:12,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:12,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:12,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:12,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:12,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:12,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:12,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:12,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:12,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:12,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:12,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:12,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:12,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:12,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:12,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:12,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:12,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:12,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:12,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:12,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:12,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:12,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:12,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:12,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:12,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:12,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:12,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:12,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:12,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:12,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:12,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:12,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:12,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:12,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:12,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:12,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:12,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:12,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:12,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:12,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:01:12,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:12,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:12,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:12,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:12,478 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:12,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:12,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:12,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:12,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:12,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:12,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:12,480 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:12,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:12,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:12,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:12,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:12,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:12,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:12,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:12,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:12,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:12,481 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/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2019-10-22 09:01:12,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:12,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:12,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:12,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:12,529 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:12,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-10-22 09:01:12,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/data/d0c7df909/a5cfe4461baa4b458a5e7dbb6fc6eef1/FLAG298c87eb4 [2019-10-22 09:01:12,945 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:12,946 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-10-22 09:01:12,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/data/d0c7df909/a5cfe4461baa4b458a5e7dbb6fc6eef1/FLAG298c87eb4 [2019-10-22 09:01:13,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/data/d0c7df909/a5cfe4461baa4b458a5e7dbb6fc6eef1 [2019-10-22 09:01:13,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:13,356 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:13,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:13,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:13,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:13,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c07e3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13, skipping insertion in model container [2019-10-22 09:01:13,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:13,387 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:13,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:13,650 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:13,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:13,680 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:13,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13 WrapperNode [2019-10-22 09:01:13,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:13,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:13,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:13,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:13,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:13,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:13,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:13,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:13,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/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 [2019-10-22 09:01:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2019-10-22 09:01:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-22 09:01:13,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-22 09:01:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:14,036 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:14,036 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-22 09:01:14,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14 BoogieIcfgContainer [2019-10-22 09:01:14,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:14,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:14,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:14,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:14,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:13" (1/3) ... [2019-10-22 09:01:14,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c3e8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:14, skipping insertion in model container [2019-10-22 09:01:14,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (2/3) ... [2019-10-22 09:01:14,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c3e8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:14, skipping insertion in model container [2019-10-22 09:01:14,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14" (3/3) ... [2019-10-22 09:01:14,043 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes4-1.c [2019-10-22 09:01:14,051 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:14,059 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-22 09:01:14,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-22 09:01:14,085 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:14,085 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:14,085 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:14,085 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:14,085 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:14,086 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:14,086 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:14,086 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-22 09:01:14,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:01:14,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:14,106 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,107 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-10-22 09:01:14,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,112 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2019-10-22 09:01:14,119 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:14,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99685486] [2019-10-22 09:01:14,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:14,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99685486] [2019-10-22 09:01:14,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:14,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:14,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841428871] [2019-10-22 09:01:14,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:14,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:14,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:14,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:14,350 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2019-10-22 09:01:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:14,475 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-10-22 09:01:14,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:14,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 09:01:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:14,485 INFO L225 Difference]: With dead ends: 24 [2019-10-22 09:01:14,485 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 09:01:14,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 09:01:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 09:01:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 09:01:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-10-22 09:01:14,516 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2019-10-22 09:01:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:14,516 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-10-22 09:01:14,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-10-22 09:01:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:01:14,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:14,517 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,517 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-10-22 09:01:14,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,518 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2019-10-22 09:01:14,518 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:14,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524043310] [2019-10-22 09:01:14,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,519 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:14,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524043310] [2019-10-22 09:01:14,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:14,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:14,666 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931376204] [2019-10-22 09:01:14,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:14,667 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:14,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:14,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:14,668 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 4 states. [2019-10-22 09:01:14,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:14,754 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-10-22 09:01:14,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:14,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 09:01:14,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:14,755 INFO L225 Difference]: With dead ends: 18 [2019-10-22 09:01:14,755 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 09:01:14,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 09:01:14,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-22 09:01:14,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 09:01:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-10-22 09:01:14,759 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2019-10-22 09:01:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:14,760 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-10-22 09:01:14,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:14,760 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-10-22 09:01:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:01:14,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:14,760 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,761 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-10-22 09:01:14,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2019-10-22 09:01:14,761 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:14,761 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740243723] [2019-10-22 09:01:14,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:14,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740243723] [2019-10-22 09:01:14,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:14,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:01:14,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596218297] [2019-10-22 09:01:14,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:01:14,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:14,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:01:14,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:01:14,989 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-10-22 09:01:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:15,179 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-10-22 09:01:15,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:01:15,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-10-22 09:01:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:15,180 INFO L225 Difference]: With dead ends: 17 [2019-10-22 09:01:15,180 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 09:01:15,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:01:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 09:01:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-22 09:01:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-22 09:01:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-10-22 09:01:15,184 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2019-10-22 09:01:15,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:15,184 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-10-22 09:01:15,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:01:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-10-22 09:01:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:01:15,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:15,185 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:15,185 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION]=== [2019-10-22 09:01:15,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:15,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2019-10-22 09:01:15,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:15,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884428291] [2019-10-22 09:01:15,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:15,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884428291] [2019-10-22 09:01:15,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:15,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:01:15,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424669414] [2019-10-22 09:01:15,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 09:01:15,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:15,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 09:01:15,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:01:15,360 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 11 states. [2019-10-22 09:01:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:15,551 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-10-22 09:01:15,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:01:15,552 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2019-10-22 09:01:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:15,552 INFO L225 Difference]: With dead ends: 16 [2019-10-22 09:01:15,552 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:01:15,553 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2019-10-22 09:01:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:01:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:01:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:01:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:01:15,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-22 09:01:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:15,554 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:15,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 09:01:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:15,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:01:15,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:15 BoogieIcfgContainer [2019-10-22 09:01:15,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:15,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:15,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:15,563 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:15,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14" (3/4) ... [2019-10-22 09:01:15,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:01:15,575 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-10-22 09:01:15,575 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-10-22 09:01:15,575 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-10-22 09:01:15,575 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2019-10-22 09:01:15,580 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-10-22 09:01:15,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 09:01:15,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:01:15,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:01:15,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0c54cead-ea94-4a69-9a1f-dd1a7ea46a52/bin/uautomizer/witness.graphml [2019-10-22 09:01:15,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:15,623 INFO L168 Benchmark]: Toolchain (without parser) took 2267.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.5 MB in the beginning and 966.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 137.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,624 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:15,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,624 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 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. [2019-10-22 09:01:15,625 INFO L168 Benchmark]: RCFGBuilder took 326.55 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,625 INFO L168 Benchmark]: TraceAbstraction took 1523.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 156.2 MB). Peak memory consumption was 156.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,626 INFO L168 Benchmark]: Witness Printer took 59.21 ms. Allocated memory is still 1.2 GB. Free memory was 973.2 MB in the beginning and 966.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.44 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. * RCFGBuilder took 326.55 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1523.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 156.2 MB). Peak memory consumption was 156.2 MB. Max. memory is 11.5 GB. * Witness Printer took 59.21 ms. Allocated memory is still 1.2 GB. Free memory was 973.2 MB in the beginning and 966.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 5 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 40 SDslu, 54 SDs, 0 SdLazy, 197 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 4382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...