./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.cil.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_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 278371fb5fb32cd768dabde497dd9d5964ee74d9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:35:21,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:35:21,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:35:21,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:35:21,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:35:21,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:35:21,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:35:21,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:35:21,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:35:21,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:35:21,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:35:21,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:35:21,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:35:21,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:35:21,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:35:21,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:35:21,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:35:21,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:35:21,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:35:21,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:35:21,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:35:21,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:35:21,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:35:21,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:35:21,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:35:21,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:35:21,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:35:21,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:35:21,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:35:21,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:35:21,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:35:21,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:35:21,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:35:21,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:35:21,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:35:21,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:35:21,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:35:21,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:35:21,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:35:21,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:35:21,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:35:21,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:35:21,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:35:21,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:35:21,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:35:21,782 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:35:21,782 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:35:21,782 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:35:21,782 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:35:21,783 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:35:21,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:35:21,783 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:35:21,783 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:35:21,784 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:35:21,784 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:35:21,784 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:35:21,785 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:35:21,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:35:21,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:35:21,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:35:21,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:35:21,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:35:21,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:35:21,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:35:21,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:35:21,787 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:35:21,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:35:21,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:35:21,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:35:21,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:35:21,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:35:21,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:35:21,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:35:21,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:35:21,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:35:21,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:35:21,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:35:21,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:35:21,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:35:21,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:35:21,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:35:21,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:35:21,792 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278371fb5fb32cd768dabde497dd9d5964ee74d9 [2020-11-28 07:35:22,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:35:22,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:35:22,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:35:22,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:35:22,068 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:35:22,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/../../sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-11-28 07:35:22,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/data/aec67396f/6abd9d7eca7548469f8971e594ac65b3/FLAGfc1659f42 [2020-11-28 07:35:22,578 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:35:22,579 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-11-28 07:35:22,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/data/aec67396f/6abd9d7eca7548469f8971e594ac65b3/FLAGfc1659f42 [2020-11-28 07:35:22,973 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/data/aec67396f/6abd9d7eca7548469f8971e594ac65b3 [2020-11-28 07:35:22,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:35:22,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:35:22,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:22,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:35:22,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:35:22,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:22" (1/1) ... [2020-11-28 07:35:22,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a46af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:22, skipping insertion in model container [2020-11-28 07:35:22,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:22" (1/1) ... [2020-11-28 07:35:22,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:35:23,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:35:23,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:23,252 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:35:23,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:23,306 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:35:23,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23 WrapperNode [2020-11-28 07:35:23,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:23,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:23,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:35:23,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:35:23,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:23,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:35:23,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:35:23,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:35:23,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... [2020-11-28 07:35:23,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:35:23,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:35:23,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:35:23,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:35:23,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/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 07:35:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:35:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:35:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:35:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:35:24,740 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:35:24,741 INFO L298 CfgBuilder]: Removed 75 assume(true) statements. [2020-11-28 07:35:24,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:24 BoogieIcfgContainer [2020-11-28 07:35:24,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:35:24,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:35:24,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:35:24,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:35:24,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:35:22" (1/3) ... [2020-11-28 07:35:24,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249e9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:24, skipping insertion in model container [2020-11-28 07:35:24,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:23" (2/3) ... [2020-11-28 07:35:24,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249e9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:24, skipping insertion in model container [2020-11-28 07:35:24,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:24" (3/3) ... [2020-11-28 07:35:24,752 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-11-28 07:35:24,762 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:35:24,768 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:35:24,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:35:24,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:35:24,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:35:24,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:35:24,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:35:24,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:35:24,804 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:35:24,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:35:24,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:35:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-11-28 07:35:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:35:24,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:24,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:24,826 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:24,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:24,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1449417800, now seen corresponding path program 1 times [2020-11-28 07:35:24,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:24,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638467419] [2020-11-28 07:35:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:25,061 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 07:35:25,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638467419] [2020-11-28 07:35:25,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:25,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:35:25,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896854369] [2020-11-28 07:35:25,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:35:25,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:35:25,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:35:25,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:35:25,091 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-11-28 07:35:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:25,328 INFO L93 Difference]: Finished difference Result 184 states and 284 transitions. [2020-11-28 07:35:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:35:25,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-28 07:35:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:25,350 INFO L225 Difference]: With dead ends: 184 [2020-11-28 07:35:25,354 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 07:35:25,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:35:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 07:35:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 116. [2020-11-28 07:35:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-28 07:35:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 159 transitions. [2020-11-28 07:35:25,437 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 159 transitions. Word has length 16 [2020-11-28 07:35:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:25,438 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 159 transitions. [2020-11-28 07:35:25,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:35:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 159 transitions. [2020-11-28 07:35:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:35:25,442 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:25,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:25,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:35:25,443 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:25,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1741296041, now seen corresponding path program 1 times [2020-11-28 07:35:25,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:25,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804570273] [2020-11-28 07:35:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 07:35:25,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804570273] [2020-11-28 07:35:25,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:25,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:35:25,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589900654] [2020-11-28 07:35:25,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:35:25,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:35:25,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:35:25,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:35:25,527 INFO L87 Difference]: Start difference. First operand 116 states and 159 transitions. Second operand 4 states. [2020-11-28 07:35:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:25,639 INFO L93 Difference]: Finished difference Result 329 states and 457 transitions. [2020-11-28 07:35:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:35:25,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-11-28 07:35:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:25,646 INFO L225 Difference]: With dead ends: 329 [2020-11-28 07:35:25,647 INFO L226 Difference]: Without dead ends: 220 [2020-11-28 07:35:25,648 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 [2020-11-28 07:35:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-11-28 07:35:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 171. [2020-11-28 07:35:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-28 07:35:25,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 236 transitions. [2020-11-28 07:35:25,677 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 236 transitions. Word has length 23 [2020-11-28 07:35:25,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:25,678 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 236 transitions. [2020-11-28 07:35:25,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:35:25,678 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 236 transitions. [2020-11-28 07:35:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:35:25,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:25,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:25,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:35:25,682 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:25,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1952040475, now seen corresponding path program 1 times [2020-11-28 07:35:25,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:25,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124666620] [2020-11-28 07:35:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:35:25,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124666620] [2020-11-28 07:35:25,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:25,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:35:25,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267259741] [2020-11-28 07:35:25,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:35:25,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:35:25,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:35:25,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:35:25,767 INFO L87 Difference]: Start difference. First operand 171 states and 236 transitions. Second operand 3 states. [2020-11-28 07:35:25,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:25,833 INFO L93 Difference]: Finished difference Result 353 states and 497 transitions. [2020-11-28 07:35:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:35:25,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 07:35:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:25,836 INFO L225 Difference]: With dead ends: 353 [2020-11-28 07:35:25,837 INFO L226 Difference]: Without dead ends: 216 [2020-11-28 07:35:25,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:35:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-28 07:35:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 183. [2020-11-28 07:35:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-28 07:35:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2020-11-28 07:35:25,865 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 25 [2020-11-28 07:35:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:25,866 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2020-11-28 07:35:25,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:35:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2020-11-28 07:35:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 07:35:25,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:25,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:25,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:35:25,877 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:25,878 INFO L82 PathProgramCache]: Analyzing trace with hash -94753337, now seen corresponding path program 1 times [2020-11-28 07:35:25,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:25,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907329311] [2020-11-28 07:35:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:35:25,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:35:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:35:26,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:35:26,051 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:35:26,052 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:35:26,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:35:26,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:35:26 BoogieIcfgContainer [2020-11-28 07:35:26,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:35:26,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:35:26,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:35:26,133 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:35:26,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:24" (3/4) ... [2020-11-28 07:35:26,136 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:35:26,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c58f72a9-993f-4c56-b9ba-81be9b766afc/bin/utaipan/witness.graphml [2020-11-28 07:35:26,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:35:26,252 INFO L168 Benchmark]: Toolchain (without parser) took 3274.35 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.7 MB in the beginning and 65.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,253 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:26,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.55 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 66.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 63.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,254 INFO L168 Benchmark]: Boogie Preprocessor took 34.63 ms. Allocated memory is still 90.2 MB. Free memory was 63.9 MB in the beginning and 61.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,255 INFO L168 Benchmark]: RCFGBuilder took 1341.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 68.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,255 INFO L168 Benchmark]: TraceAbstraction took 1387.17 ms. Allocated memory is still 109.1 MB. Free memory was 67.4 MB in the beginning and 71.1 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:26,256 INFO L168 Benchmark]: Witness Printer took 117.44 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 65.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:26,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.55 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 66.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 63.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.63 ms. Allocated memory is still 90.2 MB. Free memory was 63.9 MB in the beginning and 61.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1341.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 68.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1387.17 ms. Allocated memory is still 109.1 MB. Free memory was 67.4 MB in the beginning and 71.1 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 117.44 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 65.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 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: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; [L441] int __retres1 ; [L356] m_i = 1 [L357] t1_i = 1 [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 [L153] COND TRUE m_i == 1 [L154] m_st = 0 [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 [L242] COND FALSE !(M_E == 0) [L247] COND FALSE !(T1_E == 0) [L252] COND FALSE !(E_1 == 0) [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L107] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L119] return (__retres1); [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L123] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L126] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L138] return (__retres1); [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) [L265] COND FALSE !(M_E == 1) [L270] COND FALSE !(T1_E == 1) [L275] COND FALSE !(E_1 == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L396] COND TRUE 1 [L399] kernel_st = 1 [L189] int tmp ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L193] COND TRUE 1 [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L74] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] COND TRUE 1 [L87] t1_pc = 1 [L88] t1_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L193] COND TRUE 1 [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L33] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L44] COND TRUE 1 [L47] E_1 = 1 [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L107] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] __retres1 = 0 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L119] return (__retres1); [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L123] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L126] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L138] return (__retres1); [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 [L49] E_1 = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] COND TRUE 1 [L54] m_pc = 1 [L55] m_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L74] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L77] COND TRUE t1_pc == 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L3] __assert_fail("0", "transmitter.01.cil.c", 3, "reach_error") VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 232 SDtfs, 282 SDslu, 284 SDs, 0 SdLazy, 102 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 91 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 13/13 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...