./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/net_reset.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_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/net_reset.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/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 b4218829ef5c006a2a19bea063c1292679192a9f ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:07:24,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:07:24,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:07:24,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:07:24,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:07:24,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:07:24,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:07:24,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:07:24,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:07:24,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:07:24,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:07:24,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:07:24,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:07:24,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:07:24,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:07:24,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:07:24,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:07:24,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:07:24,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:07:24,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:07:24,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:07:24,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:07:24,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:07:24,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:07:24,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:07:24,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:07:24,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:07:24,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:07:24,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:07:24,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:07:24,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:07:24,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:07:24,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:07:24,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:07:24,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:07:24,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:07:24,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:07:24,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:07:24,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:07:24,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:07:24,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:07:24,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:07:24,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:07:24,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:07:24,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:07:24,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:07:24,637 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:07:24,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:07:24,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:07:24,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:07:24,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:07:24,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:07:24,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:07:24,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:07:24,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:07:24,643 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:07:24,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:07:24,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:07:24,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:07:24,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:07:24,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:07:24,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:07:24,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:07:24,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:07:24,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:07:24,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:07:24,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:07:24,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:07:24,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:07:24,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:07:24,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:07:24,654 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_0f229069-dbf7-4604-bfa9-4f88921443bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4218829ef5c006a2a19bea063c1292679192a9f [2020-11-29 20:07:25,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:07:25,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:07:25,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:07:25,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:07:25,058 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:07:25,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/net_reset.c [2020-11-29 20:07:25,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/data/e677e2bfc/36af45cf05244c42aef14f034fc72cfa/FLAGe68255165 [2020-11-29 20:07:25,773 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:07:25,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/sv-benchmarks/c/loops-crafted-1/net_reset.c [2020-11-29 20:07:25,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/data/e677e2bfc/36af45cf05244c42aef14f034fc72cfa/FLAGe68255165 [2020-11-29 20:07:26,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/data/e677e2bfc/36af45cf05244c42aef14f034fc72cfa [2020-11-29 20:07:26,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:07:26,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:07:26,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:07:26,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:07:26,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:07:26,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:07:26" (1/1) ... [2020-11-29 20:07:26,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a37541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:26, skipping insertion in model container [2020-11-29 20:07:26,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:07:26" (1/1) ... [2020-11-29 20:07:26,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:07:26,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:07:26,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:07:27,878 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:07:27,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:07:27,970 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:07:27,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27 WrapperNode [2020-11-29 20:07:27,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:07:27,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:07:27,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:07:27,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:07:27,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:07:28,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:07:28,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:07:28,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:07:28,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... [2020-11-29 20:07:28,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:07:28,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:07:28,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:07:28,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:07:28,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/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 [2020-11-29 20:07:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-11-29 20:07:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:07:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:07:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:07:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:07:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:07:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:07:28,846 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:07:28,846 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-29 20:07:28,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:07:28 BoogieIcfgContainer [2020-11-29 20:07:28,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:07:28,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:07:28,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:07:28,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:07:28,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:07:26" (1/3) ... [2020-11-29 20:07:28,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5678ad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:07:28, skipping insertion in model container [2020-11-29 20:07:28,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:07:27" (2/3) ... [2020-11-29 20:07:28,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5678ad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:07:28, skipping insertion in model container [2020-11-29 20:07:28,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:07:28" (3/3) ... [2020-11-29 20:07:28,861 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-11-29 20:07:28,875 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:07:28,881 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:07:28,898 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:07:28,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:07:28,942 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:07:28,942 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:07:28,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:07:28,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:07:28,943 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:07:28,944 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:07:28,944 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:07:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-29 20:07:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:07:28,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:07:28,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:07:28,972 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:07:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:07:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash 128900059, now seen corresponding path program 1 times [2020-11-29 20:07:28,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:07:28,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479478929] [2020-11-29 20:07:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:07:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:07:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:07:29,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479478929] [2020-11-29 20:07:29,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:07:29,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:07:29,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246733395] [2020-11-29 20:07:29,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:07:29,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:07:29,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:07:29,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:07:29,329 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2020-11-29 20:07:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:07:29,420 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2020-11-29 20:07:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:07:29,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 20:07:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:07:29,440 INFO L225 Difference]: With dead ends: 28 [2020-11-29 20:07:29,445 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:07:29,449 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 [2020-11-29 20:07:29,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:07:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:07:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:07:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:07:29,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-29 20:07:29,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:07:29,484 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:07:29,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:07:29,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:07:29,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:07:29,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:07:29,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:07:29,553 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 20:07:29,553 INFO L274 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-11-29 20:07:29,553 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:07:29,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:07:29,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:07:29,554 INFO L270 CegarLoopResult]: At program point L218(lines 218 228) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2020-11-29 20:07:29,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 20:07:29,554 INFO L270 CegarLoopResult]: At program point L214(lines 205 215) the Hoare annotation is: (and (<= ~batch_at~0 ULTIMATE.start_net_send_batch_~i~0) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-11-29 20:07:29,555 INFO L274 CegarLoopResult]: For program point L210(lines 210 211) no Hoare annotation was computed. [2020-11-29 20:07:29,555 INFO L274 CegarLoopResult]: For program point L194(lines 194 196) no Hoare annotation was computed. [2020-11-29 20:07:29,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:07:29,555 INFO L270 CegarLoopResult]: At program point L194-2(lines 193 198) the Hoare annotation is: false [2020-11-29 20:07:29,556 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-11-29 20:07:29,556 INFO L270 CegarLoopResult]: At program point L236(lines 233 237) the Hoare annotation is: (and (<= ~batch_at~0 ULTIMATE.start_net_send_batch_~i~0) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-11-29 20:07:29,556 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-11-29 20:07:29,556 INFO L274 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2020-11-29 20:07:29,556 INFO L274 CegarLoopResult]: For program point L216(lines 216 231) no Hoare annotation was computed. [2020-11-29 20:07:29,556 INFO L274 CegarLoopResult]: For program point L208-2(lines 208 213) no Hoare annotation was computed. [2020-11-29 20:07:29,557 INFO L270 CegarLoopResult]: At program point L208-3(lines 208 213) the Hoare annotation is: (and (<= ~batch_at~0 ULTIMATE.start_net_send_batch_~i~0) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-11-29 20:07:29,557 INFO L274 CegarLoopResult]: For program point L208-4(lines 208 213) no Hoare annotation was computed. [2020-11-29 20:07:29,557 INFO L274 CegarLoopResult]: For program point L200(lines 200 204) no Hoare annotation was computed. [2020-11-29 20:07:29,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:07:29 BoogieIcfgContainer [2020-11-29 20:07:29,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:07:29,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:07:29,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:07:29,589 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:07:29,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:07:28" (3/4) ... [2020-11-29 20:07:29,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:07:29,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 20:07:29,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 20:07:29,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:07:29,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:07:29,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0f229069-dbf7-4604-bfa9-4f88921443bf/bin/uautomizer/witness.graphml [2020-11-29 20:07:29,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:07:29,696 INFO L168 Benchmark]: Toolchain (without parser) took 3563.95 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 70.5 MB in the beginning and 89.3 MB in the end (delta: -18.8 MB). Peak memory consumption was 124.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,697 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 75.5 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:07:29,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1841.12 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 70.3 MB in the beginning and 107.3 MB in the end (delta: -37.0 MB). Peak memory consumption was 112.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.44 ms. Allocated memory is still 234.9 MB. Free memory was 107.3 MB in the beginning and 106.3 MB in the end (delta: 987.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:07:29,703 INFO L168 Benchmark]: Boogie Preprocessor took 77.29 ms. Allocated memory is still 234.9 MB. Free memory was 106.3 MB in the beginning and 104.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,706 INFO L168 Benchmark]: RCFGBuilder took 719.85 ms. Allocated memory is still 234.9 MB. Free memory was 104.2 MB in the beginning and 118.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,707 INFO L168 Benchmark]: TraceAbstraction took 735.12 ms. Allocated memory is still 234.9 MB. Free memory was 117.7 MB in the beginning and 92.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,708 INFO L168 Benchmark]: Witness Printer took 104.49 ms. Allocated memory is still 234.9 MB. Free memory was 92.5 MB in the beginning and 89.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:29,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 75.5 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1841.12 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 70.3 MB in the beginning and 107.3 MB in the end (delta: -37.0 MB). Peak memory consumption was 112.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.44 ms. Allocated memory is still 234.9 MB. Free memory was 107.3 MB in the beginning and 106.3 MB in the end (delta: 987.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.29 ms. Allocated memory is still 234.9 MB. Free memory was 106.3 MB in the beginning and 104.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 719.85 ms. Allocated memory is still 234.9 MB. Free memory was 104.2 MB in the beginning and 118.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 735.12 ms. Allocated memory is still 234.9 MB. Free memory was 117.7 MB in the beginning and 92.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 104.49 ms. Allocated memory is still 234.9 MB. Free memory was 92.5 MB in the beginning and 89.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: batch_at + 1 <= fstTTL - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: batch_at <= i && batch_at + 1 <= fstTTL - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: batch_at <= i && batch_at + 1 <= fstTTL - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: batch_at <= i && batch_at + 1 <= fstTTL - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 20 SDslu, 7 SDs, 0 SdLazy, 5 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=21occurred 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: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 33 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 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 correct! Received shutdown request...