./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 454e3dc17f2f7a976c420a2a301ab5969f35f377 ....................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:22:29,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:22:29,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:22:29,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:22:29,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:22:29,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:22:29,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:22:29,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:22:29,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:22:29,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:22:29,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:22:29,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:22:29,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:22:29,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:22:29,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:22:29,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:22:29,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:22:29,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:22:29,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:22:29,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:22:29,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:22:29,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:22:29,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:22:29,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:22:29,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:22:29,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:22:29,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:22:29,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:22:29,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:22:29,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:22:29,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:22:29,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:22:29,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:22:29,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:22:29,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:22:29,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:22:29,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:22:29,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:22:29,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:22:29,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:22:29,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:22:29,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:22:29,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:22:29,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:22:29,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:22:29,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:22:29,678 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:22:29,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:22:29,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:22:29,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:22:29,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:22:29,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:22:29,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:22:29,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:22:29,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:22:29,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:22:29,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:22:29,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:22:29,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:22:29,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:22:29,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:22:29,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:22:29,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:22:29,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:22:29,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:22:29,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:22:29,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:22:29,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:22:29,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:22:29,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:22:29,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:22:29,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454e3dc17f2f7a976c420a2a301ab5969f35f377 [2020-12-01 15:22:30,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:22:30,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:22:30,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:22:30,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:22:30,046 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:22:30,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/../../sv-benchmarks/c/array-fpi/sina3f.c [2020-12-01 15:22:30,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/data/60770f5e8/399be3b729c54cc390dff65fa724eb57/FLAGd30cfc51c [2020-12-01 15:22:30,573 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:22:30,573 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/sv-benchmarks/c/array-fpi/sina3f.c [2020-12-01 15:22:30,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/data/60770f5e8/399be3b729c54cc390dff65fa724eb57/FLAGd30cfc51c [2020-12-01 15:22:30,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/data/60770f5e8/399be3b729c54cc390dff65fa724eb57 [2020-12-01 15:22:30,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:22:30,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:22:30,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:22:30,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:22:30,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:22:30,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:22:30" (1/1) ... [2020-12-01 15:22:30,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c81b98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:30, skipping insertion in model container [2020-12-01 15:22:30,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:22:30" (1/1) ... [2020-12-01 15:22:31,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:22:31,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:22:31,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:22:31,279 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:22:31,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:22:31,344 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:22:31,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31 WrapperNode [2020-12-01 15:22:31,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:22:31,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:22:31,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:22:31,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:22:31,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:22:31,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:22:31,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:22:31,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:22:31,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... [2020-12-01 15:22:31,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:22:31,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:22:31,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:22:31,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:22:31,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/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 [2020-12-01 15:22:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:22:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:22:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:22:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 15:22:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:22:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:22:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:22:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:22:31,991 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:22:31,991 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-01 15:22:31,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:22:31 BoogieIcfgContainer [2020-12-01 15:22:31,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:22:31,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:22:31,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:22:31,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:22:31,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:22:30" (1/3) ... [2020-12-01 15:22:31,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a0694d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:22:31, skipping insertion in model container [2020-12-01 15:22:31,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:22:31" (2/3) ... [2020-12-01 15:22:32,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a0694d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:22:31, skipping insertion in model container [2020-12-01 15:22:32,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:22:31" (3/3) ... [2020-12-01 15:22:32,001 INFO L111 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-12-01 15:22:32,015 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:22:32,018 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:22:32,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:22:32,053 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:22:32,054 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:22:32,054 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:22:32,054 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:22:32,054 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:22:32,054 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:22:32,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:22:32,055 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:22:32,067 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-12-01 15:22:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:22:32,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:22:32,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:22:32,073 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:22:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:22:32,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2020-12-01 15:22:32,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:22:32,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5382860] [2020-12-01 15:22:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:22:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:22:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:22:32,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5382860] [2020-12-01 15:22:32,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:22:32,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:22:32,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378233399] [2020-12-01 15:22:32,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:22:32,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:22:32,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:22:32,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:22:32,251 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-12-01 15:22:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:22:32,268 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2020-12-01 15:22:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:22:32,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-01 15:22:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:22:32,277 INFO L225 Difference]: With dead ends: 51 [2020-12-01 15:22:32,277 INFO L226 Difference]: Without dead ends: 23 [2020-12-01 15:22:32,280 INFO L677 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 [2020-12-01 15:22:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-01 15:22:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-01 15:22:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-01 15:22:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-12-01 15:22:32,311 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2020-12-01 15:22:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:22:32,312 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-12-01 15:22:32,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:22:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-01 15:22:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:22:32,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:22:32,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:22:32,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:22:32,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:22:32,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:22:32,315 INFO L82 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2020-12-01 15:22:32,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:22:32,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780528114] [2020-12-01 15:22:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:22:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:22:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:22:32,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780528114] [2020-12-01 15:22:32,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:22:32,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:22:32,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104742443] [2020-12-01 15:22:32,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:22:32,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:22:32,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:22:32,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:22:32,402 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2020-12-01 15:22:32,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:22:32,510 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2020-12-01 15:22:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:22:32,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-01 15:22:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:22:32,511 INFO L225 Difference]: With dead ends: 53 [2020-12-01 15:22:32,512 INFO L226 Difference]: Without dead ends: 37 [2020-12-01 15:22:32,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:22:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-01 15:22:32,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2020-12-01 15:22:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-01 15:22:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-01 15:22:32,533 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2020-12-01 15:22:32,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:22:32,534 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-01 15:22:32,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:22:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-01 15:22:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:22:32,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:22:32,535 INFO L422 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] [2020-12-01 15:22:32,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:22:32,536 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:22:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:22:32,537 INFO L82 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2020-12-01 15:22:32,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:22:32,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619152926] [2020-12-01 15:22:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:22:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:22:32,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:22:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:22:32,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:22:32,697 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:22:32,699 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:22:32,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:22:32,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:22:32 BoogieIcfgContainer [2020-12-01 15:22:32,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:22:32,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:22:32,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:22:32,767 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:22:32,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:22:31" (3/4) ... [2020-12-01 15:22:32,770 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:22:32,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_63be3ec7-e1c6-43e6-a10e-ad16fdf0a1f9/bin/uautomizer/witness.graphml [2020-12-01 15:22:32,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:22:32,824 INFO L168 Benchmark]: Toolchain (without parser) took 1846.41 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 64.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,825 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:22:32,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.96 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 82.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 80.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,827 INFO L168 Benchmark]: Boogie Preprocessor took 49.13 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 79.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,828 INFO L168 Benchmark]: RCFGBuilder took 532.37 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 62.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,829 INFO L168 Benchmark]: TraceAbstraction took 771.81 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 67.2 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:22:32,829 INFO L168 Benchmark]: Witness Printer took 55.55 ms. Allocated memory is still 104.9 MB. Free memory was 67.2 MB in the beginning and 64.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:32,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.96 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 82.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 80.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.13 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 79.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 532.37 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 62.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 771.81 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 67.2 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.55 ms. Allocated memory is still 104.9 MB. Free memory was 67.2 MB in the beginning and 64.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 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: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 1 [L33] i=0 VAL [N=1] [L33] COND TRUE i