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 TopInputCallSummarizer --sifa.fluid NeverFluid --sifa.intern.fluid NeverFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 23:37:04,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 23:37:04,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 23:37:04,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 23:37:04,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 23:37:04,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 23:37:04,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 23:37:04,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 23:37:04,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 23:37:04,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 23:37:04,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 23:37:04,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 23:37:04,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 23:37:04,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 23:37:04,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 23:37:04,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 23:37:04,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 23:37:04,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 23:37:04,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 23:37:04,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 23:37:04,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 23:37:04,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 23:37:04,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 23:37:04,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 23:37:04,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 23:37:04,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 23:37:04,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 23:37:04,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 23:37:04,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 23:37:04,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 23:37:04,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 23:37:04,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 23:37:04,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 23:37:04,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 23:37:04,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 23:37:04,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 23:37:04,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 23:37:04,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 23:37:04,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 23:37:04,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 23:37:04,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 23:37:04,176 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 23:37:04,200 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 23:37:04,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 23:37:04,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 23:37:04,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 23:37:04,202 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 23:37:04,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 23:37:04,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 23:37:04,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 23:37:04,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 23:37:04,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 23:37:04,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 23:37:04,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 23:37:04,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 23:37:04,204 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 23:37:04,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 23:37:04,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 23:37:04,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 23:37:04,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 23:37:04,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 23:37:04,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 23:37:04,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 23:37:04,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 23:37:04,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 23:37:04,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 23:37:04,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 23:37:04,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 23:37:04,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 23:37:04,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 23:37:04,207 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 -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 23:37:04,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 23:37:04,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 23:37:04,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 23:37:04,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 23:37:04,261 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 23:37:04,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2019-09-20 23:37:04,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2df2f4c3/0091cafe914b4ff196fd91699176e131/FLAG625fddd7f [2019-09-20 23:37:04,775 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 23:37:04,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.02.cil-2.c [2019-09-20 23:37:04,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2df2f4c3/0091cafe914b4ff196fd91699176e131/FLAG625fddd7f [2019-09-20 23:37:05,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2df2f4c3/0091cafe914b4ff196fd91699176e131 [2019-09-20 23:37:05,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 23:37:05,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 23:37:05,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 23:37:05,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 23:37:05,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 23:37:05,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee7771a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05, skipping insertion in model container [2019-09-20 23:37:05,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,143 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 23:37:05,191 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 23:37:05,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 23:37:05,412 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 23:37:05,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 23:37:05,569 INFO L192 MainTranslator]: Completed translation [2019-09-20 23:37:05,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05 WrapperNode [2019-09-20 23:37:05,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 23:37:05,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 23:37:05,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 23:37:05,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 23:37:05,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (1/1) ... [2019-09-20 23:37:05,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 23:37:05,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 23:37:05,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 23:37:05,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 23:37:05,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:37:05" (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 23:37:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-09-20 23:37:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 23:37:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-09-20 23:37:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-09-20 23:37:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 23:37:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 23:37:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 23:37:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 23:37:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 23:37:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 23:37:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-09-20 23:37:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-09-20 23:37:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-09-20 23:37:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-09-20 23:37:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 23:37:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-09-20 23:37:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 23:37:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 23:37:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 23:37:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 23:37:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 23:37:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 23:37:06,604 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 23:37:06,605 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 23:37:06,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:37:06 BoogieIcfgContainer [2019-09-20 23:37:06,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 23:37:06,607 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 23:37:06,607 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 23:37:06,607 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 23:37:06,608 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:37:06" (1/1) ... [2019-09-20 23:37:06,609 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ 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=NeverFluid [2019-09-20 23:37:06,632 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 23:37:06,633 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 23:37:06,642 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 23:37:06,652 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 23:37:06,653 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 23:37:06,868 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 71 for LOIs [2019-09-20 23:37:06,904 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 66 for LOIs [2019-09-20 23:37:07,560 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-20 23:37:08,340 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 23:37:08,772 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 23:37:09,086 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 23:37:09,832 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2019-09-20 23:37:10,300 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 23:37:10,712 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 23:37:11,077 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 23:37:11,744 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-20 23:37:11,931 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 23:37:12,455 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-20 23:37:12,639 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 23:37:12,899 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 23:37:13,208 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 23:37:13,355 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 23:37:13,583 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 23:37:13,935 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 23:37:14,609 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2019-09-20 23:37:14,837 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 23:37:14,997 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 23:37:15,269 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-20 23:37:15,611 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-20 23:37:16,189 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-20 23:37:16,293 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 23:37:16,703 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-20 23:37:16,889 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 23:37:16,898 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 69 for LOIs [2019-09-20 23:37:17,339 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 94 [2019-09-20 23:37:17,544 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 23:37:18,299 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2019-09-20 23:37:18,658 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-09-20 23:37:19,710 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2019-09-20 23:37:20,115 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2019-09-20 23:37:20,273 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-20 23:37:20,728 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2019-09-20 23:37:21,085 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-09-20 23:37:21,419 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-20 23:37:21,524 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-20 23:37:21,862 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-20 23:37:22,014 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-20 23:37:22,429 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2019-09-20 23:37:22,648 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-20 23:37:23,092 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-20 23:37:23,238 INFO L199 IcfgInterpreter]: Interpreting procedure master with input of size 24 for LOIs [2019-09-20 23:37:23,269 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 6 for LOIs [2019-09-20 23:37:23,276 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 23:37:23,277 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 23:37:23,279 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 721#(and (= ~m_pc~0 1) (= ~m_st~0 1)) [2019-09-20 23:37:23,291 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 23:37:23,291 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 23:37:23,293 INFO L168 Benchmark]: Toolchain (without parser) took 18164.45 ms. Allocated memory was 135.8 MB in the beginning and 424.7 MB in the end (delta: 288.9 MB). Free memory was 90.3 MB in the beginning and 149.4 MB in the end (delta: -59.1 MB). Peak memory consumption was 229.8 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,294 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 135.8 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.81 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 90.1 MB in the beginning and 176.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,296 INFO L168 Benchmark]: Boogie Preprocessor took 57.90 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,297 INFO L168 Benchmark]: RCFGBuilder took 975.33 ms. Allocated memory is still 202.4 MB. Free memory was 174.2 MB in the beginning and 99.7 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,298 INFO L168 Benchmark]: Sifa took 16684.67 ms. Allocated memory was 202.4 MB in the beginning and 424.7 MB in the end (delta: 222.3 MB). Free memory was 99.7 MB in the beginning and 149.4 MB in the end (delta: -49.6 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB. [2019-09-20 23:37:23,302 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 135.8 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 441.81 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 90.1 MB in the beginning and 176.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.90 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 975.33 ms. Allocated memory is still 202.4 MB. Free memory was 174.2 MB in the beginning and 99.7 MB in the end (delta: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. * Sifa took 16684.67 ms. Allocated memory was 202.4 MB in the beginning and 424.7 MB in the end (delta: 222.3 MB). Free memory was 99.7 MB in the beginning and 149.4 MB in the end (delta: -49.6 MB). Peak memory consumption was 172.7 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]: 16647, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 365, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 249, TOOLS_POST_TIME[ms]: 110, TOOLS_POST_CALL_APPLICATIONS: 80, TOOLS_POST_CALL_TIME[ms]: 204, TOOLS_POST_RETURN_APPLICATIONS: 74, TOOLS_POST_RETURN_TIME[ms]: 130, TOOLS_QUANTIFIERELIM_APPLICATIONS: 403, TOOLS_QUANTIFIERELIM_TIME[ms]: 320, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 1, FLUID_QUERIES: 371, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 132, DOMAIN_JOIN_TIME[ms]: 15010, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 828, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 9, DOMAIN_ISBOTTOM_APPLICATIONS: 104, DOMAIN_ISBOTTOM_TIME[ms]: 199, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 15499, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 15498, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 74, CALL_SUMMARIZER_CACHE_MISSES: 21, CALL_SUMMARIZER_OVERALL_TIME[ms]: 7278, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7277, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 9, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 42, DAG_COMPRESSION_PROCESSED_NODES: 480, DAG_COMPRESSION_RETAINED_NODES: 253 - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 721#(and (= ~m_pc~0 1) (= ~m_st~0 1)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...