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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --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 20:40:57,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 20:40:57,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 20:40:57,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 20:40:57,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 20:40:57,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 20:40:57,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 20:40:57,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 20:40:57,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 20:40:57,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 20:40:57,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 20:40:57,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 20:40:57,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 20:40:57,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 20:40:57,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 20:40:57,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 20:40:57,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 20:40:57,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 20:40:57,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 20:40:57,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 20:40:57,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 20:40:57,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 20:40:57,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 20:40:57,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 20:40:57,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 20:40:57,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 20:40:57,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 20:40:57,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 20:40:57,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 20:40:57,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 20:40:57,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 20:40:57,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 20:40:57,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 20:40:57,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 20:40:57,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 20:40:57,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 20:40:57,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 20:40:57,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 20:40:57,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 20:40:57,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 20:40:57,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 20:40:57,653 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 20:40:57,681 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 20:40:57,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 20:40:57,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 20:40:57,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 20:40:57,684 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 20:40:57,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 20:40:57,685 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 20:40:57,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 20:40:57,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 20:40:57,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 20:40:57,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 20:40:57,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 20:40:57,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 20:40:57,687 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 20:40:57,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 20:40:57,688 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 20:40:57,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 20:40:57,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 20:40:57,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 20:40:57,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 20:40:57,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 20:40:57,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:40:57,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 20:40:57,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 20:40:57,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 20:40:57,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 20:40:57,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 20:40:57,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 20:40:57,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> ReUseSupersetCallSummarizer 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 20:40:57,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 20:40:57,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 20:40:57,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 20:40:57,747 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 20:40:57,747 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 20:40:57,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 20:40:57,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30314172d/eb406fe72a49494e943b1cae7ed7cf8e/FLAGdf016fabf [2019-09-20 20:40:58,264 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 20:40:58,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 20:40:58,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30314172d/eb406fe72a49494e943b1cae7ed7cf8e/FLAGdf016fabf [2019-09-20 20:40:58,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30314172d/eb406fe72a49494e943b1cae7ed7cf8e [2019-09-20 20:40:58,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 20:40:58,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 20:40:58,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 20:40:58,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 20:40:58,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 20:40:58,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:40:58" (1/1) ... [2019-09-20 20:40:58,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2315f4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:58, skipping insertion in model container [2019-09-20 20:40:58,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:40:58" (1/1) ... [2019-09-20 20:40:58,696 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 20:40:58,728 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 20:40:58,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:40:58,933 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 20:40:59,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:40:59,083 INFO L192 MainTranslator]: Completed translation [2019-09-20 20:40:59,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59 WrapperNode [2019-09-20 20:40:59,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 20:40:59,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 20:40:59,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 20:40:59,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 20:40:59,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (1/1) ... [2019-09-20 20:40:59,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 20:40:59,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 20:40:59,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 20:40:59,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 20:40:59,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:40:59" (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 20:40:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 20:40:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 20:40:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 20:40:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 20:40:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 20:40:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 20:40:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 20:40:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 20:40:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 20:40:59,189 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 20:40:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 20:40:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 20:40:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 20:40:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 20:40:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 20:40:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 20:40:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 20:40:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 20:40:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 20:40:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 20:40:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 20:41:00,004 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 20:41:00,004 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 20:41:00,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:00 BoogieIcfgContainer [2019-09-20 20:41:00,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 20:41:00,006 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 20:41:00,006 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 20:41:00,007 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 20:41:00,008 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:00" (1/1) ... [2019-09-20 20:41:00,009 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 20:41:00,030 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 20:41:00,031 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 20:41:00,040 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 20:41:00,051 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 20:41:00,053 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 20:41:00,241 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 20:41:00,470 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 20:41:00,896 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-20 20:41:01,063 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-20 20:41:01,390 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-20 20:41:01,581 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-20 20:41:02,120 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-20 20:41:02,480 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 20:41:02,634 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:02,772 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 20:41:03,183 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-20 20:41:03,339 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-20 20:41:03,472 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-20 20:41:03,876 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 20:41:04,048 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:04,184 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 20:41:04,420 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-20 20:41:04,766 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-20 20:41:04,975 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-20 20:41:05,373 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 20:41:05,547 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-20 20:41:05,721 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-20 20:41:05,915 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-20 20:41:06,182 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-20 20:41:06,989 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-20 20:41:07,258 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:07,531 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:07,801 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:08,090 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:08,356 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:08,737 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 20:41:09,317 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-20 20:41:09,546 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-20 20:41:09,778 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-20 20:41:10,029 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-20 20:41:10,263 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-20 20:41:10,494 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-20 20:41:10,869 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-20 20:41:11,112 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-20 20:41:11,486 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-20 20:41:12,057 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-20 20:41:12,214 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 20:41:12,588 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-20 20:41:12,748 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 20:41:12,948 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2019-09-20 20:41:13,201 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2019-09-20 20:41:13,867 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-20 20:41:14,409 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-20 20:41:14,582 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-09-20 20:41:15,098 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-20 20:41:15,780 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:15,984 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:16,188 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-20 20:41:16,424 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-20 20:41:16,748 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-20 20:41:17,231 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-20 20:41:17,733 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-20 20:41:18,549 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-20 20:41:18,886 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-20 20:41:19,540 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-20 20:41:20,042 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-20 20:41:20,343 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2019-09-20 20:41:20,552 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 20:41:20,658 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 20:41:20,978 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2019-09-20 20:41:21,085 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-09-20 20:41:21,420 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2019-09-20 20:41:21,551 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-20 20:41:21,691 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-20 20:41:21,830 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-20 20:41:22,264 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-20 20:41:22,426 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 20:41:22,933 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 55 [2019-09-20 20:41:23,054 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-09-20 20:41:23,583 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 57 [2019-09-20 20:41:24,879 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 83 [2019-09-20 20:41:26,039 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 84 [2019-09-20 20:41:26,359 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-20 20:41:26,809 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 20:41:26,975 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-09-20 20:41:27,669 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 80 [2019-09-20 20:41:27,797 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-20 20:41:28,308 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 90 [2019-09-20 20:41:28,495 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 20:41:28,500 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 74 for LOIs [2019-09-20 20:41:28,960 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2019-09-20 20:41:29,120 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 20:41:29,508 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2019-09-20 20:41:29,670 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 20:41:30,274 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2019-09-20 20:41:30,533 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:31,489 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-20 20:41:32,144 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 35 for LOIs [2019-09-20 20:41:32,422 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-20 20:41:32,582 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-20 20:41:32,950 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-20 20:41:33,432 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-20 20:41:33,615 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 1 for LOIs [2019-09-20 20:41:33,616 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 20:41:33,616 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 20:41:33,619 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1116#true [2019-09-20 20:41:33,634 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 20:41:33,634 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 20:41:33,636 INFO L168 Benchmark]: Toolchain (without parser) took 34955.32 ms. Allocated memory was 134.7 MB in the beginning and 470.8 MB in the end (delta: 336.1 MB). Free memory was 90.5 MB in the beginning and 410.3 MB in the end (delta: -319.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:33,636 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 134.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 20:41:33,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.59 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.1 MB in the beginning and 175.7 MB in the end (delta: -85.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:33,638 INFO L168 Benchmark]: Boogie Preprocessor took 44.75 ms. Allocated memory is still 200.8 MB. Free memory was 175.7 MB in the beginning and 174.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:33,639 INFO L168 Benchmark]: RCFGBuilder took 876.67 ms. Allocated memory is still 200.8 MB. Free memory was 174.0 MB in the beginning and 124.7 MB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 7.1 GB. [2019-09-20 20:41:33,640 INFO L168 Benchmark]: Sifa took 33627.64 ms. Allocated memory was 200.8 MB in the beginning and 470.8 MB in the end (delta: 270.0 MB). Free memory was 124.7 MB in the beginning and 410.3 MB in the end (delta: -285.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 20:41:33,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 134.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 402.59 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.1 MB in the beginning and 175.7 MB in the end (delta: -85.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.75 ms. Allocated memory is still 200.8 MB. Free memory was 175.7 MB in the beginning and 174.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 876.67 ms. Allocated memory is still 200.8 MB. Free memory was 174.0 MB in the beginning and 124.7 MB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 7.1 GB. * Sifa took 33627.64 ms. Allocated memory was 200.8 MB in the beginning and 470.8 MB in the end (delta: 270.0 MB). Free memory was 124.7 MB in the beginning and 410.3 MB in the end (delta: -285.7 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]: 33589, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 539, DAG_INTERPRETER_EARLY_EXITS: 16, TOOLS_POST_APPLICATIONS: 392, TOOLS_POST_TIME[ms]: 179, TOOLS_POST_CALL_APPLICATIONS: 98, TOOLS_POST_CALL_TIME[ms]: 247, TOOLS_POST_RETURN_APPLICATIONS: 91, TOOLS_POST_RETURN_TIME[ms]: 242, TOOLS_QUANTIFIERELIM_APPLICATIONS: 581, TOOLS_QUANTIFIERELIM_TIME[ms]: 511, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 30, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 569, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 193, DOMAIN_JOIN_TIME[ms]: 26407, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 250, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME[ms]: 4455, DOMAIN_ISSUBSETEQ_APPLICATIONS: 366, DOMAIN_ISSUBSETEQ_TIME[ms]: 503, DOMAIN_ISBOTTOM_APPLICATIONS: 128, DOMAIN_ISBOTTOM_TIME[ms]: 214, LOOP_SUMMARIZER_APPLICATIONS: 15, LOOP_SUMMARIZER_CACHE_MISSES: 15, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 24687, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 24686, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 30, CALL_SUMMARIZER_APPLICATIONS: 91, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 26988, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 35, 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 1116#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...