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_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 16:44:30,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 16:44:30,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 16:44:30,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 16:44:30,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 16:44:30,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 16:44:30,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 16:44:30,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 16:44:30,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 16:44:30,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 16:44:30,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 16:44:30,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 16:44:30,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 16:44:30,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 16:44:30,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 16:44:30,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 16:44:30,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 16:44:30,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 16:44:30,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 16:44:30,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 16:44:30,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 16:44:30,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 16:44:30,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 16:44:30,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 16:44:30,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 16:44:30,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 16:44:30,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 16:44:30,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 16:44:30,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 16:44:30,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 16:44:30,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 16:44:30,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 16:44:30,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 16:44:30,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 16:44:30,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 16:44:30,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 16:44:30,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 16:44:30,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 16:44:30,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 16:44:30,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 16:44:30,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 16:44:30,379 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 [2019-09-20 16:44:30,393 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 16:44:30,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 16:44:30,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 16:44:30,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 16:44:30,395 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 16:44:30,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 16:44:30,396 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 16:44:30,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 16:44:30,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 16:44:30,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 16:44:30,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 16:44:30,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 16:44:30,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 16:44:30,397 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 16:44:30,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 16:44:30,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 16:44:30,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 16:44:30,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 16:44:30,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 16:44:30,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 16:44:30,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 16:44:30,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 16:44:30,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 16:44:30,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 16:44:30,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 16:44:30,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 16:44:30,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 16:44:30,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 16:44:30,400 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_DDA [2019-09-20 16:44:30,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 16:44:30,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 16:44:30,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 16:44:30,456 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 16:44:30,456 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 16:44:30,457 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 16:44:30,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4107e91d2/d8bb7011763a454fbb2c65c6deefd6e7/FLAG1f01d5436 [2019-09-20 16:44:30,944 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 16:44:30,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 16:44:30,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4107e91d2/d8bb7011763a454fbb2c65c6deefd6e7/FLAG1f01d5436 [2019-09-20 16:44:31,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4107e91d2/d8bb7011763a454fbb2c65c6deefd6e7 [2019-09-20 16:44:31,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 16:44:31,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 16:44:31,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 16:44:31,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 16:44:31,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 16:44:31,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:31,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ed1223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31, skipping insertion in model container [2019-09-20 16:44:31,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:31,385 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 16:44:31,426 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 16:44:31,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 16:44:31,769 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 16:44:31,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 16:44:31,944 INFO L192 MainTranslator]: Completed translation [2019-09-20 16:44:31,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31 WrapperNode [2019-09-20 16:44:31,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 16:44:31,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 16:44:31,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 16:44:31,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 16:44:31,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:31,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:31,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:31,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:32,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:32,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:32,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (1/1) ... [2019-09-20 16:44:32,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 16:44:32,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 16:44:32,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 16:44:32,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 16:44:32,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 04:44:31" (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 [2019-09-20 16:44:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 16:44:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 16:44:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 16:44:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 16:44:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 16:44:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 16:44:32,112 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 16:44:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 16:44:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 16:44:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 16:44:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 16:44:32,114 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 16:44:32,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 16:44:32,115 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 16:44:32,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 16:44:32,115 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 16:44:32,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 16:44:32,116 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 16:44:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 16:44:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 16:44:32,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 16:44:32,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 16:44:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 16:44:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 16:44:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 16:44:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 16:44:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 16:44:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 16:44:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 16:44:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 16:44:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 16:44:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 16:44:32,894 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 16:44:32,894 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 16:44:32,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 04:44:32 BoogieIcfgContainer [2019-09-20 16:44:32,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 16:44:32,896 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 16:44:32,896 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 16:44:32,896 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 16:44:32,898 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 04:44:32" (1/1) ... [2019-09-20 16:44:32,898 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_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 16:44:32,922 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 16:44:32,923 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 16:44:32,932 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 16:44:32,941 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 16:44:32,943 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 16:44:33,160 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-20 16:44:33,201 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 87 for LOIs [2019-09-20 16:44:33,331 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 85 for LOIs [2019-09-20 16:44:34,616 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-09-20 16:44:35,037 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 16:44:35,046 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 66 for LOIs [2019-09-20 16:44:35,406 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 30 for LOIs [2019-09-20 16:44:35,884 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 8 for LOIs [2019-09-20 16:44:35,894 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 16:44:35,895 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 16:44:35,897 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 433#(and (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0)) [2019-09-20 16:44:35,910 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 16:44:35,911 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 16:44:35,913 INFO L168 Benchmark]: Toolchain (without parser) took 4546.98 ms. Allocated memory was 132.1 MB in the beginning and 269.0 MB in the end (delta: 136.8 MB). Free memory was 87.8 MB in the beginning and 128.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,914 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.77 ms. Allocated memory was 132.1 MB in the beginning and 196.6 MB in the end (delta: 64.5 MB). Free memory was 87.6 MB in the beginning and 171.7 MB in the end (delta: -84.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,916 INFO L168 Benchmark]: Boogie Preprocessor took 92.14 ms. Allocated memory is still 196.6 MB. Free memory was 171.7 MB in the beginning and 169.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,916 INFO L168 Benchmark]: RCFGBuilder took 856.80 ms. Allocated memory is still 196.6 MB. Free memory was 168.7 MB in the beginning and 120.0 MB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,918 INFO L168 Benchmark]: Sifa took 3014.69 ms. Allocated memory was 196.6 MB in the beginning and 269.0 MB in the end (delta: 72.4 MB). Free memory was 119.4 MB in the beginning and 128.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2019-09-20 16:44:35,921 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 578.77 ms. Allocated memory was 132.1 MB in the beginning and 196.6 MB in the end (delta: 64.5 MB). Free memory was 87.6 MB in the beginning and 171.7 MB in the end (delta: -84.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.14 ms. Allocated memory is still 196.6 MB. Free memory was 171.7 MB in the beginning and 169.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 856.80 ms. Allocated memory is still 196.6 MB. Free memory was 168.7 MB in the beginning and 120.0 MB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. * Sifa took 3014.69 ms. Allocated memory was 196.6 MB in the beginning and 269.0 MB in the end (delta: 72.4 MB). Free memory was 119.4 MB in the beginning and 128.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 63.3 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]: 2975, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 295, DAG_INTERPRETER_EARLY_EXITS: 8, TOOLS_POST_APPLICATIONS: 206, TOOLS_POST_TIME[ms]: 84, TOOLS_POST_CALL_APPLICATIONS: 67, TOOLS_POST_CALL_TIME[ms]: 245, TOOLS_POST_RETURN_APPLICATIONS: 60, TOOLS_POST_RETURN_TIME[ms]: 84, TOOLS_QUANTIFIERELIM_APPLICATIONS: 333, TOOLS_QUANTIFIERELIM_TIME[ms]: 292, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 21, FLUID_QUERY_TIME[ms]: 12, FLUID_QUERIES: 305, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 97, DOMAIN_JOIN_TIME[ms]: 2303, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 2, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 9, DOMAIN_ISBOTTOM_APPLICATIONS: 75, DOMAIN_ISBOTTOM_TIME[ms]: 95, LOOP_SUMMARIZER_APPLICATIONS: 9, LOOP_SUMMARIZER_CACHE_MISSES: 9, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1244, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1243, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 10, CALL_SUMMARIZER_APPLICATIONS: 60, CALL_SUMMARIZER_CACHE_MISSES: 17, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1019, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1018, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 36, DAG_COMPRESSION_PROCESSED_NODES: 487, DAG_COMPRESSION_RETAINED_NODES: 213 - 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 433#(and (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...