./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/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 0.2.0-7b2dab5 [2020-12-09 05:35:01,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:35:01,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:35:02,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:35:02,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:35:02,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:35:02,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:35:02,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:35:02,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:35:02,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:35:02,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:35:02,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:35:02,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:35:02,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:35:02,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:35:02,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:35:02,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:35:02,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:35:02,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:35:02,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:35:02,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:35:02,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:35:02,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:35:02,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:35:02,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:35:02,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:35:02,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:35:02,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:35:02,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:35:02,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:35:02,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:35:02,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:35:02,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:35:02,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:35:02,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:35:02,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:35:02,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:35:02,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:35:02,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:35:02,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:35:02,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:35:02,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:35:02,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:35:02,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:35:02,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:35:02,096 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:35:02,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:35:02,096 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:35:02,096 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:35:02,096 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:35:02,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:35:02,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:35:02,097 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:35:02,097 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:35:02,097 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:35:02,098 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:35:02,098 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:35:02,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:35:02,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:35:02,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:35:02,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:35:02,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:35:02,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:35:02,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:35:02,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:35:02,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:35:02,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:35:02,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:35:02,101 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:35:02,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:35:02,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:35:02,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:35:02,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:35:02,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:35:02,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:35:02,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:35:02,102 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:35:02,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:35:02,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:35:02,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:35:02,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:35:02,103 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_a4ae039a-3178-4c52-8343-60f0d03164d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278371fb5fb32cd768dabde497dd9d5964ee74d9 [2020-12-09 05:35:02,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:35:02,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:35:02,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:35:02,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:35:02,320 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:35:02,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/../../sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-12-09 05:35:02,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/data/fbe53394f/95a08ae870da41d49f05bdac1367d019/FLAGaed5e648b [2020-12-09 05:35:02,737 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:35:02,738 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-12-09 05:35:02,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/data/fbe53394f/95a08ae870da41d49f05bdac1367d019/FLAGaed5e648b [2020-12-09 05:35:02,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/data/fbe53394f/95a08ae870da41d49f05bdac1367d019 [2020-12-09 05:35:02,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:35:02,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:35:02,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:35:02,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:35:02,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:35:02,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:02,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a96a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02, skipping insertion in model container [2020-12-09 05:35:02,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:02,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:35:02,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:35:02,890 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/sv-benchmarks/c/systemc/transmitter.01.cil.c[401,414] [2020-12-09 05:35:02,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:35:02,928 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:35:02,936 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/sv-benchmarks/c/systemc/transmitter.01.cil.c[401,414] [2020-12-09 05:35:02,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:35:02,963 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:35:02,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02 WrapperNode [2020-12-09 05:35:02,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:35:02,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:35:02,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:35:02,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:35:02,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:02,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:02,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:35:02,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:35:02,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:35:02,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:35:03,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... [2020-12-09 05:35:03,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:35:03,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:35:03,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:35:03,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:35:03,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/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 [2020-12-09 05:35:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:35:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:35:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:35:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:35:03,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:35:03,753 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2020-12-09 05:35:03,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:35:03 BoogieIcfgContainer [2020-12-09 05:35:03,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:35:03,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:35:03,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:35:03,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:35:03,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:35:02" (1/3) ... [2020-12-09 05:35:03,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c5761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:35:03, skipping insertion in model container [2020-12-09 05:35:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:35:02" (2/3) ... [2020-12-09 05:35:03,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c5761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:35:03, skipping insertion in model container [2020-12-09 05:35:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:35:03" (3/3) ... [2020-12-09 05:35:03,764 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-12-09 05:35:03,777 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:35:03,780 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:35:03,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:35:03,805 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:35:03,805 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:35:03,805 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:35:03,805 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:35:03,805 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:35:03,806 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:35:03,806 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:35:03,806 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:35:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-09 05:35:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 05:35:03,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:35:03,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:35:03,820 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:35:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:35:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1457719508, now seen corresponding path program 1 times [2020-12-09 05:35:03,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:35:03,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421041499] [2020-12-09 05:35:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:35:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:35:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:35:03,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421041499] [2020-12-09 05:35:03,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:35:03,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 05:35:03,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211536356] [2020-12-09 05:35:03,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:35:03,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:35:03,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:35:03,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:35:03,982 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-12-09 05:35:04,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:35:04,104 INFO L93 Difference]: Finished difference Result 184 states and 284 transitions. [2020-12-09 05:35:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:35:04,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 05:35:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:35:04,114 INFO L225 Difference]: With dead ends: 184 [2020-12-09 05:35:04,114 INFO L226 Difference]: Without dead ends: 125 [2020-12-09 05:35:04,116 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 [2020-12-09 05:35:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-12-09 05:35:04,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 116. [2020-12-09 05:35:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-09 05:35:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 159 transitions. [2020-12-09 05:35:04,150 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 159 transitions. Word has length 16 [2020-12-09 05:35:04,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:35:04,150 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 159 transitions. [2020-12-09 05:35:04,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:35:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 159 transitions. [2020-12-09 05:35:04,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 05:35:04,152 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:35:04,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:35:04,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 05:35:04,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:35:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:35:04,153 INFO L82 PathProgramCache]: Analyzing trace with hash 455826085, now seen corresponding path program 1 times [2020-12-09 05:35:04,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:35:04,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392850990] [2020-12-09 05:35:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:35:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:35:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 05:35:04,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392850990] [2020-12-09 05:35:04,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:35:04,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 05:35:04,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113245388] [2020-12-09 05:35:04,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:35:04,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:35:04,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:35:04,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:35:04,212 INFO L87 Difference]: Start difference. First operand 116 states and 159 transitions. Second operand 4 states. [2020-12-09 05:35:04,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:35:04,292 INFO L93 Difference]: Finished difference Result 329 states and 457 transitions. [2020-12-09 05:35:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 05:35:04,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-09 05:35:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:35:04,294 INFO L225 Difference]: With dead ends: 329 [2020-12-09 05:35:04,295 INFO L226 Difference]: Without dead ends: 220 [2020-12-09 05:35:04,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:35:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-09 05:35:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 171. [2020-12-09 05:35:04,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-12-09 05:35:04,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 236 transitions. [2020-12-09 05:35:04,312 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 236 transitions. Word has length 23 [2020-12-09 05:35:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:35:04,312 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 236 transitions. [2020-12-09 05:35:04,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:35:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 236 transitions. [2020-12-09 05:35:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 05:35:04,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:35:04,314 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:35:04,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 05:35:04,314 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:35:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:35:04,315 INFO L82 PathProgramCache]: Analyzing trace with hash -697463977, now seen corresponding path program 1 times [2020-12-09 05:35:04,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:35:04,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746963359] [2020-12-09 05:35:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:35:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:35:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:35:04,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746963359] [2020-12-09 05:35:04,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:35:04,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 05:35:04,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924904440] [2020-12-09 05:35:04,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 05:35:04,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:35:04,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 05:35:04,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 05:35:04,362 INFO L87 Difference]: Start difference. First operand 171 states and 236 transitions. Second operand 3 states. [2020-12-09 05:35:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:35:04,395 INFO L93 Difference]: Finished difference Result 353 states and 497 transitions. [2020-12-09 05:35:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 05:35:04,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-09 05:35:04,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:35:04,398 INFO L225 Difference]: With dead ends: 353 [2020-12-09 05:35:04,398 INFO L226 Difference]: Without dead ends: 216 [2020-12-09 05:35:04,399 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 [2020-12-09 05:35:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-12-09 05:35:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 183. [2020-12-09 05:35:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-09 05:35:04,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2020-12-09 05:35:04,415 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 25 [2020-12-09 05:35:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:35:04,416 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2020-12-09 05:35:04,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 05:35:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2020-12-09 05:35:04,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-09 05:35:04,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:35:04,418 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] [2020-12-09 05:35:04,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 05:35:04,418 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:35:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:35:04,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1494497109, now seen corresponding path program 1 times [2020-12-09 05:35:04,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:35:04,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013775488] [2020-12-09 05:35:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:35:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:35:04,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:35:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:35:04,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:35:04,488 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 05:35:04,488 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 05:35:04,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 05:35:04,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:35:04 BoogieIcfgContainer [2020-12-09 05:35:04,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:35:04,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:35:04,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:35:04,535 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:35:04,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:35:03" (3/4) ... [2020-12-09 05:35:04,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 05:35:04,597 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a4ae039a-3178-4c52-8343-60f0d03164d6/bin/utaipan/witness.graphml [2020-12-09 05:35:04,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:35:04,598 INFO L168 Benchmark]: Toolchain (without parser) took 1840.20 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 76.3 MB in the beginning and 66.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,598 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:35:04,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.63 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 77.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.78 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 74.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,599 INFO L168 Benchmark]: Boogie Preprocessor took 24.19 ms. Allocated memory is still 102.8 MB. Free memory was 74.7 MB in the beginning and 72.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,600 INFO L168 Benchmark]: RCFGBuilder took 735.17 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 72.9 MB in the beginning and 96.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,600 INFO L168 Benchmark]: TraceAbstraction took 777.30 ms. Allocated memory is still 130.0 MB. Free memory was 96.5 MB in the beginning and 71.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,600 INFO L168 Benchmark]: Witness Printer took 62.20 ms. Allocated memory is still 130.0 MB. Free memory was 71.9 MB in the beginning and 66.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 05:35:04,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 205.63 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 77.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.78 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 74.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.19 ms. Allocated memory is still 102.8 MB. Free memory was 74.7 MB in the beginning and 72.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 735.17 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 72.9 MB in the beginning and 96.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 777.30 ms. Allocated memory is still 130.0 MB. Free memory was 96.5 MB in the beginning and 71.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * Witness Printer took 62.20 ms. Allocated memory is still 130.0 MB. Free memory was 71.9 MB in the beginning and 66.0 MB in the end (delta: 5.9 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: 13]: a call to reach_error is reachable a call to reach_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] [L13] 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, 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, 0.1s 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 91 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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...