java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/token_ring.04.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 07:08:17,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 07:08:17,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 07:08:17,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 07:08:17,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 07:08:17,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 07:08:17,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 07:08:17,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 07:08:17,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 07:08:17,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 07:08:17,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 07:08:17,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 07:08:17,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 07:08:17,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 07:08:17,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 07:08:17,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 07:08:17,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 07:08:17,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 07:08:17,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 07:08:17,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 07:08:17,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 07:08:17,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 07:08:17,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 07:08:17,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 07:08:17,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 07:08:17,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 07:08:17,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 07:08:17,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 07:08:17,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 07:08:17,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 07:08:17,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 07:08:17,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 07:08:17,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 07:08:17,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 07:08:17,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 07:08:17,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 07:08:17,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 07:08:17,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 07:08:17,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 07:08:17,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 07:08:17,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 07:08:17,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 07:08:17,994 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 07:08:17,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 07:08:17,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 07:08:17,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 07:08:17,996 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 07:08:17,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 07:08:18,000 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 07:08:18,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 07:08:18,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 07:08:18,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 07:08:18,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 07:08:18,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 07:08:18,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 07:08:18,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 07:08:18,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 07:08:18,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 07:08:18,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 07:08:18,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 07:08:18,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 07:08:18,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 07:08:18,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 07:08:18,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 07:08:18,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 07:08:18,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 07:08:18,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 07:08:18,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 07:08:18,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 07:08:18,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 07:08:18,315 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 07:08:18,316 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.04.cil-2.c [2019-10-15 07:08:18,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c7ab379/d63053a9a62546b48709ebaa3ad7ced2/FLAGf05048654 [2019-10-15 07:08:18,915 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 07:08:18,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.04.cil-2.c [2019-10-15 07:08:18,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c7ab379/d63053a9a62546b48709ebaa3ad7ced2/FLAGf05048654 [2019-10-15 07:08:19,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c7ab379/d63053a9a62546b48709ebaa3ad7ced2 [2019-10-15 07:08:19,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 07:08:19,268 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 07:08:19,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 07:08:19,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 07:08:19,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 07:08:19,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bfee95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19, skipping insertion in model container [2019-10-15 07:08:19,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,286 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 07:08:19,342 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 07:08:19,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 07:08:19,632 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 07:08:19,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 07:08:19,800 INFO L192 MainTranslator]: Completed translation [2019-10-15 07:08:19,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19 WrapperNode [2019-10-15 07:08:19,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 07:08:19,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 07:08:19,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 07:08:19,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 07:08:19,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... [2019-10-15 07:08:19,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 07:08:19,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 07:08:19,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 07:08:19,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 07:08:19,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:08:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-10-15 07:08:19,921 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-10-15 07:08:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-10-15 07:08:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-10-15 07:08:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-15 07:08:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-15 07:08:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-15 07:08:19,923 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-15 07:08:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-15 07:08:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-15 07:08:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-15 07:08:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 07:08:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 07:08:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-10-15 07:08:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-10-15 07:08:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-15 07:08:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 07:08:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 07:08:21,184 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 07:08:21,185 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-15 07:08:21,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:08:21 BoogieIcfgContainer [2019-10-15 07:08:21,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 07:08:21,187 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-15 07:08:21,187 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-15 07:08:21,188 INFO L275 PluginConnector]: Sifa initialized [2019-10-15 07:08:21,189 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:08:21" (1/1) ... [2019-10-15 07:08:21,190 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-15 07:08:21,239 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-15 07:08:21,240 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 07:08:21,258 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 07:08:21,268 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 07:08:21,269 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 07:08:21,626 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 145 for LOIs [2019-10-15 07:08:21,671 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 126 for LOIs [2019-10-15 07:08:21,839 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:22,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:23,059 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:23,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:25,798 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:25,970 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-10-15 07:08:28,497 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 73 for LOIs [2019-10-15 07:08:30,732 INFO L199 IcfgInterpreter]: Interpreting procedure master with input of size 50 for LOIs [2019-10-15 07:08:30,743 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 33 for LOIs [2019-10-15 07:08:30,749 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 07:08:30,762 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-15 07:08:30,762 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-15 07:08:30,767 INFO L168 Benchmark]: Toolchain (without parser) took 11496.39 ms. Allocated memory was 146.8 MB in the beginning and 539.0 MB in the end (delta: 392.2 MB). Free memory was 103.9 MB in the beginning and 402.7 MB in the end (delta: -298.8 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,769 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.32 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 103.6 MB in the beginning and 179.7 MB in the end (delta: -76.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,771 INFO L168 Benchmark]: Boogie Preprocessor took 60.43 ms. Allocated memory is still 205.0 MB. Free memory was 179.7 MB in the beginning and 176.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,773 INFO L168 Benchmark]: RCFGBuilder took 1325.25 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 176.7 MB in the beginning and 173.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,779 INFO L168 Benchmark]: Sifa took 9575.46 ms. Allocated memory was 234.9 MB in the beginning and 539.0 MB in the end (delta: 304.1 MB). Free memory was 173.0 MB in the beginning and 402.7 MB in the end (delta: -229.7 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2019-10-15 07:08:30,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 531.32 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 103.6 MB in the beginning and 179.7 MB in the end (delta: -76.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.43 ms. Allocated memory is still 205.0 MB. Free memory was 179.7 MB in the beginning and 176.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1325.25 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 176.7 MB in the beginning and 173.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * Sifa took 9575.46 ms. Allocated memory was 234.9 MB in the beginning and 539.0 MB in the end (delta: 304.1 MB). Free memory was 173.0 MB in the beginning and 402.7 MB in the end (delta: -229.7 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 9510, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 1146, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 843, TOOLS_POST_TIME[ms]: 269, TOOLS_POST_CALL_APPLICATIONS: 212, TOOLS_POST_CALL_TIME[ms]: 416, TOOLS_POST_RETURN_APPLICATIONS: 206, TOOLS_POST_RETURN_TIME[ms]: 197, TOOLS_QUANTIFIERELIM_APPLICATIONS: 1261, TOOLS_QUANTIFIERELIM_TIME[ms]: 617, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 28, FLUID_QUERY_TIME[ms]: 28, FLUID_QUERIES: 1171, FLUID_YES_ANSWERS: 3, DOMAIN_JOIN_APPLICATIONS: 468, DOMAIN_JOIN_TIME[ms]: 7300, DOMAIN_ALPHA_APPLICATIONS: 3, DOMAIN_ALPHA_TIME[ms]: 372, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 92, DOMAIN_ISSUBSETEQ_APPLICATIONS: 25, DOMAIN_ISSUBSETEQ_TIME[ms]: 27, DOMAIN_ISBOTTOM_APPLICATIONS: 415, DOMAIN_ISBOTTOM_TIME[ms]: 560, LOOP_SUMMARIZER_APPLICATIONS: 23, LOOP_SUMMARIZER_CACHE_MISSES: 23, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 6959, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6959, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 25, CALL_SUMMARIZER_APPLICATIONS: 206, CALL_SUMMARIZER_CACHE_MISSES: 25, CALL_SUMMARIZER_OVERALL_TIME[ms]: 6260, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6259, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 9, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 45, DAG_COMPRESSION_PROCESSED_NODES: 809, DAG_COMPRESSION_RETAINED_NODES: 407 - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 7352#(and (= ~m_pc~0 1) (<= 1 ~m_pc~0) (<= ~m_st~0 1) (= ~m_i~0 1) (= ~t4_i~0 1) (= ~t1_i~0 1) (= ~m_st~0 1) (<= 1 ~t2_i~0) (<= ~t1_i~0 1) (<= ~t3_i~0 1) (<= ~m_i~0 1) (<= 1 ~m_i~0) (= ~t3_i~0 1) (<= ~t4_i~0 1) (<= 1 ~t3_i~0) (<= 1 ~t4_i~0) (not (= ~m_pc~0 0)) (= ~t2_i~0 1) (<= ~m_pc~0 1) (<= 1 ~m_st~0) (<= ~t2_i~0 1) (<= 1 ~t1_i~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...