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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 18:45:00,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:45:00,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:45:00,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:45:00,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:45:00,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:45:00,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:45:00,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:45:00,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:45:00,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:45:00,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:45:00,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:45:00,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:45:00,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:45:00,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:45:00,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:45:00,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:45:00,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:45:00,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:45:00,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:45:00,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:45:00,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:45:00,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:45:00,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:45:00,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:45:00,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:45:00,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:45:00,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:45:00,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:45:00,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:45:00,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:45:00,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:45:00,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:45:00,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:45:00,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:45:00,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:45:00,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:45:00,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:45:00,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:45:00,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:45:00,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:45:00,163 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 18:45:00,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:45:00,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:45:00,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:45:00,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:45:00,179 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:45:00,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:45:00,179 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:45:00,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:45:00,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:45:00,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:45:00,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:45:00,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:45:00,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:45:00,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:45:00,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:45:00,181 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:45:00,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:45:00,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:45:00,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:45:00,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:45:00,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:45:00,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:45:00,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:45:00,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:45:00,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:45:00,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:45:00,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:45:00,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:45:00,183 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 18:45:00,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:45:00,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:45:00,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:45:00,232 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:45:00,232 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:45:00,233 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 18:45:00,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89bc1be/90f4eac52494434d81216532ea59edb0/FLAGf09ed08d5 [2019-09-20 18:45:00,769 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:45:00,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-09-20 18:45:00,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89bc1be/90f4eac52494434d81216532ea59edb0/FLAGf09ed08d5 [2019-09-20 18:45:00,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc89bc1be/90f4eac52494434d81216532ea59edb0 [2019-09-20 18:45:00,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:45:00,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:45:00,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:00,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:45:00,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:45:00,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:00" (1/1) ... [2019-09-20 18:45:00,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5589eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:00, skipping insertion in model container [2019-09-20 18:45:00,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:00" (1/1) ... [2019-09-20 18:45:00,840 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:45:00,889 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:45:01,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:01,115 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:45:01,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:01,274 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:45:01,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01 WrapperNode [2019-09-20 18:45:01,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:01,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:45:01,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:45:01,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:45:01,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:45:01,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:45:01,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:45:01,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:45:01,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:01" (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 18:45:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:45:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:45:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 18:45:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 18:45:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 18:45:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 18:45:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 18:45:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 18:45:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 18:45:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 18:45:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 18:45:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 18:45:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 18:45:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 18:45:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 18:45:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 18:45:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 18:45:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 18:45:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 18:45:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:45:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 18:45:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 18:45:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 18:45:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:45:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:45:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:45:01,886 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:45:01,886 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 18:45:01,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:01 BoogieIcfgContainer [2019-09-20 18:45:01,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:45:01,888 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:45:01,889 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:45:01,889 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:45:01,890 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:01" (1/1) ... [2019-09-20 18:45:01,890 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 18:45:01,912 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:45:01,912 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:45:01,921 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:45:01,929 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:45:01,931 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:45:02,126 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 18:45:02,211 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 18:45:03,085 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-09-20 18:45:04,289 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2019-09-20 18:45:05,567 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-20 18:45:05,728 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 18:45:05,735 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 63 for LOIs [2019-09-20 18:45:05,980 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-20 18:45:06,286 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-20 18:45:06,390 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 18:45:06,863 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2019-09-20 18:45:07,100 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 18:45:07,719 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2019-09-20 18:45:08,105 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 28 for LOIs [2019-09-20 18:45:08,449 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-20 18:45:08,604 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-20 18:45:08,986 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-20 18:45:09,407 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-20 18:45:09,561 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 1 for LOIs [2019-09-20 18:45:09,563 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 18:45:09,563 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 18:45:09,566 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 684#true [2019-09-20 18:45:09,583 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 18:45:09,583 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 18:45:09,586 INFO L168 Benchmark]: Toolchain (without parser) took 8762.43 ms. Allocated memory was 140.0 MB in the beginning and 334.0 MB in the end (delta: 194.0 MB). Free memory was 88.0 MB in the beginning and 173.5 MB in the end (delta: -85.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,587 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.73 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 87.5 MB in the beginning and 176.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,590 INFO L168 Benchmark]: Boogie Preprocessor took 41.71 ms. Allocated memory is still 200.8 MB. Free memory was 176.3 MB in the beginning and 173.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,591 INFO L168 Benchmark]: RCFGBuilder took 570.36 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 142.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,592 INFO L168 Benchmark]: Sifa took 7695.06 ms. Allocated memory was 200.8 MB in the beginning and 334.0 MB in the end (delta: 133.2 MB). Free memory was 142.9 MB in the beginning and 173.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 102.6 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:09,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 451.73 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 87.5 MB in the beginning and 176.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.71 ms. Allocated memory is still 200.8 MB. Free memory was 176.3 MB in the beginning and 173.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 570.36 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 142.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Sifa took 7695.06 ms. Allocated memory was 200.8 MB in the beginning and 334.0 MB in the end (delta: 133.2 MB). Free memory was 142.9 MB in the beginning and 173.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 102.6 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]: 7655, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 370, DAG_INTERPRETER_EARLY_EXITS: 8, TOOLS_POST_APPLICATIONS: 266, TOOLS_POST_TIME[ms]: 81, TOOLS_POST_CALL_APPLICATIONS: 71, TOOLS_POST_CALL_TIME[ms]: 177, TOOLS_POST_RETURN_APPLICATIONS: 64, TOOLS_POST_RETURN_TIME[ms]: 82, TOOLS_QUANTIFIERELIM_APPLICATIONS: 400, TOOLS_QUANTIFIERELIM_TIME[ms]: 231, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 14, FLUID_QUERIES: 382, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 130, DOMAIN_JOIN_TIME[ms]: 6622, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 364, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME[ms]: 9, DOMAIN_ISBOTTOM_APPLICATIONS: 99, DOMAIN_ISBOTTOM_TIME[ms]: 142, LOOP_SUMMARIZER_APPLICATIONS: 9, LOOP_SUMMARIZER_CACHE_MISSES: 9, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 4726, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4725, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 64, CALL_SUMMARIZER_CACHE_MISSES: 17, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2913, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2913, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 50, DAG_COMPRESSION_PROCESSED_NODES: 566, DAG_COMPRESSION_RETAINED_NODES: 268 - 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 684#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...