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 IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:19:28,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:19:28,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:19:28,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:19:28,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:19:28,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:19:28,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:19:28,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:19:28,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:19:28,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:19:28,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:19:28,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:19:28,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:19:28,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:19:28,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:19:28,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:19:28,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:19:28,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:19:28,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:19:28,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:19:28,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:19:28,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:19:28,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:19:28,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:19:28,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:19:28,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:19:28,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:19:28,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:19:28,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:19:28,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:19:28,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:19:28,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:19:28,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:19:28,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:19:28,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:19:28,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:19:28,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:19:28,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:19:28,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:19:28,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:19:28,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:19:28,422 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 [2019-09-21 09:19:28,438 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:19:28,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:19:28,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:19:28,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:19:28,440 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:19:28,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:19:28,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:19:28,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:19:28,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:19:28,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:19:28,443 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:19:28,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:19:28,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:19:28,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:19:28,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:19:28,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:19:28,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:19:28,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:19:28,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:19:28,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:19:28,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:19:28,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:19:28,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:19:28,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 09:19:28,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:19:28,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:19:28,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:19:28,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:19:28,497 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:19:28,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2019-09-21 09:19:28,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74a2e8d0/1083d515805042b695c8f501ae403fb8/FLAG7f749aee0 [2019-09-21 09:19:29,027 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:19:29,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2019-09-21 09:19:29,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74a2e8d0/1083d515805042b695c8f501ae403fb8/FLAG7f749aee0 [2019-09-21 09:19:29,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74a2e8d0/1083d515805042b695c8f501ae403fb8 [2019-09-21 09:19:29,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:19:29,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:19:29,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:19:29,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:19:29,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:19:29,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ff4b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29, skipping insertion in model container [2019-09-21 09:19:29,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,418 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:19:29,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:19:29,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:19:29,680 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:19:29,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:19:29,839 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:19:29,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29 WrapperNode [2019-09-21 09:19:29,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:19:29,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:19:29,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:19:29,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:19:29,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (1/1) ... [2019-09-21 09:19:29,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:19:29,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:19:29,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:19:29,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:19:29,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:19:29" (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 [2019-09-21 09:19:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-09-21 09:19:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-09-21 09:19:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-09-21 09:19:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-21 09:19:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-21 09:19:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-21 09:19:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-21 09:19:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-21 09:19:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-21 09:19:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-21 09:19:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-09-21 09:19:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-21 09:19:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-21 09:19:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-21 09:19:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-21 09:19:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-21 09:19:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:19:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:19:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-21 09:19:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-09-21 09:19:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-21 09:19:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-21 09:19:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-21 09:19:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-21 09:19:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:19:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:19:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:19:30,945 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:19:30,945 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-21 09:19:30,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:19:30 BoogieIcfgContainer [2019-09-21 09:19:30,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:19:30,947 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:19:30,947 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:19:30,948 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:19:30,949 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:19:30" (1/1) ... [2019-09-21 09:19:30,950 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:19:30,975 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:19:30,976 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:19:30,986 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:19:30,996 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:19:30,998 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:19:31,188 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-21 09:19:31,207 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 88 for LOIs [2019-09-21 09:19:31,252 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 83 for LOIs [2019-09-21 09:19:31,335 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 09:19:31,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 09:19:32,028 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-21 09:19:32,427 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 44 for LOIs [2019-09-21 09:19:32,583 INFO L199 IcfgInterpreter]: Interpreting procedure master with input of size 33 for LOIs [2019-09-21 09:19:32,590 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 17 for LOIs [2019-09-21 09:19:32,592 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:19:32,593 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:19:32,596 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 624#(and (<= 1 ~m_pc~0) (<= ~m_st~0 1) (<= 1 ~t2_i~0) (<= ~t1_i~0 1) (<= ~m_pc~0 1) (<= 1 ~m_st~0) (<= ~m_i~0 1) (<= ~t2_i~0 1) (<= 1 ~m_i~0) (<= 1 ~t1_i~0)) [2019-09-21 09:19:32,608 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:19:32,608 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:19:32,611 INFO L168 Benchmark]: Toolchain (without parser) took 3208.39 ms. Allocated memory was 131.1 MB in the beginning and 267.9 MB in the end (delta: 136.8 MB). Free memory was 86.1 MB in the beginning and 169.8 MB in the end (delta: -83.7 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:19:32,611 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 131.1 MB. Free memory is still 104.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-21 09:19:32,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.54 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 172.5 MB in the end (delta: -86.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:19:32,613 INFO L168 Benchmark]: Boogie Preprocessor took 53.88 ms. Allocated memory is still 198.7 MB. Free memory was 172.5 MB in the beginning and 169.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:19:32,614 INFO L168 Benchmark]: RCFGBuilder took 1052.39 ms. Allocated memory is still 198.7 MB. Free memory was 169.7 MB in the beginning and 95.7 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-09-21 09:19:32,615 INFO L168 Benchmark]: Sifa took 1661.50 ms. Allocated memory was 198.7 MB in the beginning and 267.9 MB in the end (delta: 69.2 MB). Free memory was 95.7 MB in the beginning and 169.8 MB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-21 09:19:32,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 131.1 MB. Free memory is still 104.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 436.54 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 172.5 MB in the end (delta: -86.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.88 ms. Allocated memory is still 198.7 MB. Free memory was 172.5 MB in the beginning and 169.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1052.39 ms. Allocated memory is still 198.7 MB. Free memory was 169.7 MB in the beginning and 95.7 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Sifa took 1661.50 ms. Allocated memory was 198.7 MB in the beginning and 267.9 MB in the end (delta: 69.2 MB). Free memory was 95.7 MB in the beginning and 169.8 MB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 1621, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 423, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 289, TOOLS_POST_TIME[ms]: 107, TOOLS_POST_CALL_APPLICATIONS: 90, TOOLS_POST_CALL_TIME[ms]: 296, TOOLS_POST_RETURN_APPLICATIONS: 84, TOOLS_POST_RETURN_TIME[ms]: 112, TOOLS_QUANTIFIERELIM_APPLICATIONS: 463, TOOLS_QUANTIFIERELIM_TIME[ms]: 370, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 431, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 154, DOMAIN_JOIN_TIME[ms]: 663, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 53, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 5, DOMAIN_ISSUBSETEQ_APPLICATIONS: 8, DOMAIN_ISSUBSETEQ_TIME[ms]: 12, DOMAIN_ISBOTTOM_APPLICATIONS: 124, DOMAIN_ISBOTTOM_TIME[ms]: 176, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 969, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 968, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 84, CALL_SUMMARIZER_CACHE_MISSES: 21, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1022, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1022, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 10, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 49, DAG_COMPRESSION_PROCESSED_NODES: 480, DAG_COMPRESSION_RETAINED_NODES: 253 - 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 624#(and (<= 1 ~m_pc~0) (<= ~m_st~0 1) (<= 1 ~t2_i~0) (<= ~t1_i~0 1) (<= ~m_pc~0 1) (<= 1 ~m_st~0) (<= ~m_i~0 1) (<= ~t2_i~0 1) (<= 1 ~m_i~0) (<= 1 ~t1_i~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...