./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/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 71efd50ac46da226940f13e0be4d06fb93c10bef .......................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 03:16:51,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:16:51,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:16:51,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:16:51,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:16:51,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:16:51,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:16:51,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:16:51,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:16:51,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:16:51,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:16:51,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:16:51,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:16:51,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:16:51,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:16:51,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:16:51,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:16:51,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:16:51,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:16:51,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:16:51,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:16:51,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:16:51,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:16:51,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:16:51,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:16:51,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:16:51,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:16:51,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:16:51,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:16:51,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:16:51,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:16:51,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:16:51,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:16:51,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:16:51,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:16:51,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:16:51,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:16:51,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:16:51,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:16:51,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:16:51,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:16:51,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:16:51,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:16:51,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:16:51,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:16:51,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:16:51,178 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:16:51,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:16:51,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:16:51,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:16:51,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:16:51,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:16:51,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:16:51,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:16:51,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:16:51,180 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:16:51,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:16:51,180 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:16:51,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:16:51,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:16:51,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:16:51,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:16:51,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:16:51,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:16:51,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:16:51,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:16:51,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:16:51,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:16:51,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:16:51,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:16:51,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:16:51,183 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_12ae3386-8595-40fd-b242-226c315aa00f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71efd50ac46da226940f13e0be4d06fb93c10bef [2020-11-28 03:16:51,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:16:51,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:16:51,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:16:51,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:16:51,513 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:16:51,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_03-1.c [2020-11-28 03:16:51,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/data/ccb7f6e0e/921f799a0f064e70aed71aa9424f0886/FLAGf85e8a310 [2020-11-28 03:16:52,059 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:16:52,059 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/sv-benchmarks/c/loops/terminator_03-1.c [2020-11-28 03:16:52,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/data/ccb7f6e0e/921f799a0f064e70aed71aa9424f0886/FLAGf85e8a310 [2020-11-28 03:16:52,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/data/ccb7f6e0e/921f799a0f064e70aed71aa9424f0886 [2020-11-28 03:16:52,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:16:52,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:16:52,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:52,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:16:52,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:16:52,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5308831e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52, skipping insertion in model container [2020-11-28 03:16:52,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:16:52,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:16:52,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:52,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:16:52,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:52,723 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:16:52,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52 WrapperNode [2020-11-28 03:16:52,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:52,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:52,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:16:52,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:16:52,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:52,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:16:52,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:16:52,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:16:52,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... [2020-11-28 03:16:52,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:16:52,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:16:52,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:16:52,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:16:52,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/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 [2020-11-28 03:16:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:16:52,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:16:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:16:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:16:53,056 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:16:53,057 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:16:53,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:53 BoogieIcfgContainer [2020-11-28 03:16:53,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:16:53,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:16:53,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:16:53,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:16:53,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:16:52" (1/3) ... [2020-11-28 03:16:53,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38973222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:53, skipping insertion in model container [2020-11-28 03:16:53,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:52" (2/3) ... [2020-11-28 03:16:53,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38973222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:53, skipping insertion in model container [2020-11-28 03:16:53,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:53" (3/3) ... [2020-11-28 03:16:53,089 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2020-11-28 03:16:53,100 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:16:53,113 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:16:53,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:16:53,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:16:53,162 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:16:53,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:16:53,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:16:53,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:16:53,163 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:16:53,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:16:53,163 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:16:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-28 03:16:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:16:53,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:53,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:16:53,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:53,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:53,188 INFO L82 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2020-11-28 03:16:53,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:53,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330300533] [2020-11-28 03:16:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:53,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330300533] [2020-11-28 03:16:53,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:53,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:16:53,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135045065] [2020-11-28 03:16:53,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:16:53,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:16:53,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:16:53,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:16:53,416 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-11-28 03:16:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:53,496 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-11-28 03:16:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:16:53,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-28 03:16:53,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:53,514 INFO L225 Difference]: With dead ends: 27 [2020-11-28 03:16:53,515 INFO L226 Difference]: Without dead ends: 8 [2020-11-28 03:16:53,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:16:53,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-28 03:16:53,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-28 03:16:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:16:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-28 03:16:53,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-11-28 03:16:53,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:53,548 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-28 03:16:53,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:16:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-28 03:16:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:16:53,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:53,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:53,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:16:53,550 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:53,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1805064685, now seen corresponding path program 1 times [2020-11-28 03:16:53,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:16:53,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841979512] [2020-11-28 03:16:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:16:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:16:53,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:16:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:16:53,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:16:53,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:16:53,622 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:16:53,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:16:53,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:16:53 BoogieIcfgContainer [2020-11-28 03:16:53,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:16:53,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:16:53,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:16:53,647 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:16:53,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:53" (3/4) ... [2020-11-28 03:16:53,650 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:16:53,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_12ae3386-8595-40fd-b242-226c315aa00f/bin/uautomizer/witness.graphml [2020-11-28 03:16:53,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:16:53,689 INFO L168 Benchmark]: Toolchain (without parser) took 1200.38 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 75.7 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:53,689 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:53,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.65 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 64.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:53,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.19 ms. Allocated memory is still 86.0 MB. Free memory was 64.6 MB in the beginning and 63.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:53,691 INFO L168 Benchmark]: Boogie Preprocessor took 20.79 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 62.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:53,692 INFO L168 Benchmark]: RCFGBuilder took 288.27 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 51.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:53,693 INFO L168 Benchmark]: TraceAbstraction took 572.77 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 77.8 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:53,693 INFO L168 Benchmark]: Witness Printer took 40.06 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:53,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.65 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 64.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.19 ms. Allocated memory is still 86.0 MB. Free memory was 64.6 MB in the beginning and 63.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.79 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 62.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 288.27 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 51.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 572.77 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 77.8 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 40.06 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int x=__VERIFIER_nondet_int(); [L16] int y=__VERIFIER_nondet_int(); [L18] COND TRUE y>0 [L20] COND FALSE !(x<100) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "terminator_03-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 15 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...