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 SequenceOfStatements --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-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 18:44:46,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:44:46,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:44:46,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:44:46,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:44:46,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:44:46,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:44:46,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:44:46,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:44:46,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:44:46,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:44:46,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:44:46,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:44:46,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:44:46,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:44:46,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:44:46,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:44:46,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:44:46,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:44:46,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:44:46,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:44:46,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:44:46,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:44:46,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:44:46,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:44:46,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:44:46,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:44:46,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:44:46,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:44:46,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:44:46,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:44:46,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:44:46,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:44:46,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:44:46,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:44:46,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:44:46,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:44:46,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:44:46,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:44:46,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:44:46,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:44:46,647 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 18:44:46,668 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:44:46,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:44:46,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:44:46,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:44:46,670 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:44:46,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:44:46,670 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:44:46,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:44:46,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:44:46,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:44:46,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:44:46,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:44:46,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:44:46,672 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:44:46,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:44:46,673 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:44:46,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:44:46,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:44:46,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:44:46,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:44:46,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:44:46,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:44:46,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:44:46,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:44:46,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:44:46,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:44:46,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:44:46,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:44:46,677 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 -> SequenceOfStatements 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 18:44:46,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:44:46,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:44:46,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:44:46,755 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:44:46,755 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:44:46,756 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 18:44:46,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fea1ce6/2a94d6f7851a4deb9cbfff2125b32afb/FLAG3a8df922d [2019-09-20 18:44:47,270 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:44:47,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 18:44:47,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fea1ce6/2a94d6f7851a4deb9cbfff2125b32afb/FLAG3a8df922d [2019-09-20 18:44:47,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fea1ce6/2a94d6f7851a4deb9cbfff2125b32afb [2019-09-20 18:44:47,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:44:47,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:44:47,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:44:47,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:44:47,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:44:47,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:44:47" (1/1) ... [2019-09-20 18:44:47,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de0b607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:47, skipping insertion in model container [2019-09-20 18:44:47,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:44:47" (1/1) ... [2019-09-20 18:44:47,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:44:47,757 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:44:47,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:44:47,958 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:44:48,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:44:48,106 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:44:48,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48 WrapperNode [2019-09-20 18:44:48,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:44:48,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:44:48,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:44:48,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:44:48,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:44:48,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:44:48,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:44:48,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:44:48,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:44:48" (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 18:44:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:44:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:44:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 18:44:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 18:44:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 18:44:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 18:44:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 18:44:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 18:44:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 18:44:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 18:44:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 18:44:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 18:44:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 18:44:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 18:44:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:44:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:44:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:44:48,718 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:44:48,718 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 18:44:48,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:44:48 BoogieIcfgContainer [2019-09-20 18:44:48,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:44:48,720 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:44:48,721 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:44:48,721 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:44:48,722 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:44:48" (1/1) ... [2019-09-20 18:44:48,724 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 18:44:48,756 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:44:48,756 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:44:48,773 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:44:48,783 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:44:48,785 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:44:48,975 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 18:44:49,056 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 18:44:49,911 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-09-20 18:44:50,524 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2019-09-20 18:44:51,546 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2019-09-20 18:44:53,592 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-20 18:44:53,995 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-20 18:44:54,154 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 18:44:54,160 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 63 for LOIs [2019-09-20 18:44:54,397 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-20 18:44:54,718 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-20 18:44:55,141 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-20 18:44:55,410 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-20 18:44:56,049 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2019-09-20 18:44:56,436 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-20 18:44:56,543 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-20 18:44:57,221 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 18:44:57,609 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 18:44:57,792 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 18 for LOIs [2019-09-20 18:44:57,827 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 18:44:57,827 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 18:44:57,830 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 749#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))) [2019-09-20 18:44:57,845 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 18:44:57,845 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 18:44:57,846 INFO L168 Benchmark]: Toolchain (without parser) took 10143.31 ms. Allocated memory was 132.6 MB in the beginning and 356.5 MB in the end (delta: 223.9 MB). Free memory was 86.6 MB in the beginning and 105.2 MB in the end (delta: -18.6 MB). Peak memory consumption was 205.2 MB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,848 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 132.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.77 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.4 MB in the beginning and 174.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,849 INFO L168 Benchmark]: Boogie Preprocessor took 46.57 ms. Allocated memory is still 199.8 MB. Free memory was 174.9 MB in the beginning and 172.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,850 INFO L168 Benchmark]: RCFGBuilder took 565.25 ms. Allocated memory is still 199.8 MB. Free memory was 172.4 MB in the beginning and 141.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,851 INFO L168 Benchmark]: Sifa took 9124.52 ms. Allocated memory was 199.8 MB in the beginning and 356.5 MB in the end (delta: 156.8 MB). Free memory was 141.4 MB in the beginning and 105.2 MB in the end (delta: 36.2 MB). Peak memory consumption was 192.9 MB. Max. memory is 7.1 GB. [2019-09-20 18:44:57,855 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 132.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 403.77 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.4 MB in the beginning and 174.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.57 ms. Allocated memory is still 199.8 MB. Free memory was 174.9 MB in the beginning and 172.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 565.25 ms. Allocated memory is still 199.8 MB. Free memory was 172.4 MB in the beginning and 141.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Sifa took 9124.52 ms. Allocated memory was 199.8 MB in the beginning and 356.5 MB in the end (delta: 156.8 MB). Free memory was 141.4 MB in the beginning and 105.2 MB in the end (delta: 36.2 MB). Peak memory consumption was 192.9 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]: 9074, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 391, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 289, TOOLS_POST_TIME[ms]: 79, TOOLS_POST_CALL_APPLICATIONS: 67, TOOLS_POST_CALL_TIME[ms]: 161, TOOLS_POST_RETURN_APPLICATIONS: 61, TOOLS_POST_RETURN_TIME[ms]: 73, TOOLS_QUANTIFIERELIM_APPLICATIONS: 416, TOOLS_QUANTIFIERELIM_TIME[ms]: 218, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 404, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 153, DOMAIN_JOIN_TIME[ms]: 7933, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 435, DOMAIN_ISSUBSETEQ_APPLICATIONS: 13, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 105, DOMAIN_ISBOTTOM_TIME[ms]: 205, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5627, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5626, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 13, CALL_SUMMARIZER_APPLICATIONS: 61, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4483, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4482, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 45, DAG_COMPRESSION_PROCESSED_NODES: 536, DAG_COMPRESSION_RETAINED_NODES: 264 - 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 749#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...