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 SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 14:25:24,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 14:25:24,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 14:25:24,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 14:25:24,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 14:25:24,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 14:25:24,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 14:25:24,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 14:25:24,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 14:25:24,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 14:25:24,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 14:25:24,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 14:25:24,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 14:25:24,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 14:25:24,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 14:25:24,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 14:25:24,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 14:25:24,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 14:25:24,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 14:25:24,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 14:25:24,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 14:25:24,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 14:25:24,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 14:25:24,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 14:25:24,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 14:25:24,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 14:25:24,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 14:25:24,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 14:25:24,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 14:25:24,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 14:25:24,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 14:25:24,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 14:25:24,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 14:25:24,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 14:25:24,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 14:25:24,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 14:25:24,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 14:25:24,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 14:25:24,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 14:25:24,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 14:25:24,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 14:25:24,726 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 14:25:24,741 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 14:25:24,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 14:25:24,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 14:25:24,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 14:25:24,743 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 14:25:24,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 14:25:24,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 14:25:24,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 14:25:24,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 14:25:24,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 14:25:24,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 14:25:24,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 14:25:24,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 14:25:24,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 14:25:24,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 14:25:24,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 14:25:24,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 14:25:24,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 14:25:24,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 14:25:24,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 14:25:24,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 14:25:24,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 14:25:24,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 14:25:24,747 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 -> 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 14:25:24,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 14:25:24,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 14:25:24,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 14:25:24,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 14:25:24,798 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 14:25:24,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-09-20 14:25:24,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574a4ed46/07c9c0533d8b4e1e9086187ca4effd21/FLAG29a164257 [2019-09-20 14:25:25,328 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 14:25:25,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-09-20 14:25:25,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574a4ed46/07c9c0533d8b4e1e9086187ca4effd21/FLAG29a164257 [2019-09-20 14:25:25,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574a4ed46/07c9c0533d8b4e1e9086187ca4effd21 [2019-09-20 14:25:25,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 14:25:25,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 14:25:25,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:25,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 14:25:25,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 14:25:25,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:25" (1/1) ... [2019-09-20 14:25:25,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148b2de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:25, skipping insertion in model container [2019-09-20 14:25:25,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:25:25" (1/1) ... [2019-09-20 14:25:25,732 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 14:25:25,780 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 14:25:25,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:26,004 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 14:25:26,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:25:26,168 INFO L192 MainTranslator]: Completed translation [2019-09-20 14:25:26,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26 WrapperNode [2019-09-20 14:25:26,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 14:25:26,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 14:25:26,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 14:25:26,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 14:25:26,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 14:25:26,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 14:25:26,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 14:25:26,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 14:25:26,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:25:26" (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 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 14:25:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 14:25:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 14:25:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 14:25:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 14:25:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 14:25:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 14:25:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 14:25:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 14:25:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 14:25:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 14:25:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 14:25:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 14:25:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 14:25:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 14:25:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 14:25:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 14:25:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 14:25:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 14:25:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 14:25:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 14:25:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 14:25:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 14:25:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 14:25:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 14:25:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 14:25:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 14:25:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 14:25:26,878 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 14:25:26,878 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 14:25:26,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:26 BoogieIcfgContainer [2019-09-20 14:25:26,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 14:25:26,880 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 14:25:26,880 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 14:25:26,880 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 14:25:26,882 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:25:26" (1/1) ... [2019-09-20 14:25:26,882 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 14:25:26,905 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 14:25:26,905 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 14:25:26,914 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 14:25:26,924 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 14:25:26,925 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 14:25:27,138 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 62 for LOIs [2019-09-20 14:25:27,225 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 60 for LOIs [2019-09-20 14:25:28,084 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-09-20 14:25:28,530 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2019-09-20 14:25:28,843 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2019-09-20 14:25:29,003 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2019-09-20 14:25:30,283 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-20 14:25:30,627 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-20 14:25:30,921 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-20 14:25:31,189 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-20 14:25:31,519 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:31,709 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:31,894 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:32,053 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:32,187 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-20 14:25:32,358 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-20 14:25:32,568 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:32,728 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:32,951 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-09-20 14:25:33,248 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-20 14:25:33,557 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-20 14:25:33,834 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-20 14:25:34,054 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2019-09-20 14:25:34,323 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:34,481 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:34,657 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:34,841 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:35,008 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-20 14:25:35,214 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-20 14:25:35,437 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-20 14:25:36,014 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-20 14:25:36,298 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-20 14:25:36,584 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-20 14:25:36,842 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-20 14:25:37,114 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:37,274 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:37,423 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:37,572 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:37,729 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-20 14:25:37,937 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-20 14:25:38,854 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-20 14:25:39,147 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-20 14:25:39,429 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-20 14:25:39,623 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-20 14:25:39,925 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:40,207 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-09-20 14:25:40,361 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2019-09-20 14:25:40,507 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-20 14:25:40,699 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-20 14:25:41,139 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2019-09-20 14:25:41,215 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 60 for LOIs [2019-09-20 14:25:41,558 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-09-20 14:25:42,195 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-20 14:25:42,404 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:25:42,785 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-20 14:25:42,997 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 14:25:43,681 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2019-09-20 14:25:44,008 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 14:25:44,694 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2019-09-20 14:25:45,017 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 14:25:45,731 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2019-09-20 14:25:46,048 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-20 14:25:46,398 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2019-09-20 14:25:46,534 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 14:25:47,372 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2019-09-20 14:25:47,781 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:25:48,550 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2019-09-20 14:25:48,890 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:25:49,247 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-20 14:25:49,385 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 14:25:50,154 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2019-09-20 14:25:50,476 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-20 14:25:50,831 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2019-09-20 14:25:50,968 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 14:25:51,796 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2019-09-20 14:25:52,221 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:25:53,313 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2019-09-20 14:25:53,656 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:25:54,062 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-20 14:25:54,237 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 14:25:54,997 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2019-09-20 14:25:55,361 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 14:25:56,113 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 97 [2019-09-20 14:25:56,492 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 14:25:56,991 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-20 14:25:57,219 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-20 14:25:57,807 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-20 14:25:58,318 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-20 14:25:58,578 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-20 14:25:58,845 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-20 14:25:59,099 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-20 14:25:59,333 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-20 14:25:59,636 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-20 14:25:59,662 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 27 for LOIs [2019-09-20 14:25:59,784 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-09-20 14:25:59,913 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-09-20 14:26:00,177 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2019-09-20 14:26:00,354 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2019-09-20 14:26:00,554 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-20 14:26:00,786 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2019-09-20 14:26:00,996 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-20 14:26:01,240 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-20 14:26:01,433 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2019-09-20 14:26:01,482 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 40 for LOIs [2019-09-20 14:26:01,569 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 14:26:01,569 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 14:26:01,572 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1481#(or (and (= ~q_read_ev~0 2) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (or (and (= 0 ~p_dw_st~0) (and (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (and (and (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (not (= 1 ~p_dw_pc~0)))) (not (= ~c_num_read~0 ~p_num_write~0))) (and (= ~q_read_ev~0 2) (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (not (= ~c_last_read~0 ~p_last_write~0)))) [2019-09-20 14:26:01,587 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 14:26:01,587 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 14:26:01,589 INFO L168 Benchmark]: Toolchain (without parser) took 35877.60 ms. Allocated memory was 140.0 MB in the beginning and 486.5 MB in the end (delta: 346.6 MB). Free memory was 87.5 MB in the beginning and 309.9 MB in the end (delta: -222.4 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,589 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.72 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 87.1 MB in the beginning and 175.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,592 INFO L168 Benchmark]: Boogie Preprocessor took 41.77 ms. Allocated memory is still 199.2 MB. Free memory was 175.5 MB in the beginning and 173.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,592 INFO L168 Benchmark]: RCFGBuilder took 667.82 ms. Allocated memory is still 199.2 MB. Free memory was 173.6 MB in the beginning and 136.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,593 INFO L168 Benchmark]: Sifa took 34707.07 ms. Allocated memory was 199.2 MB in the beginning and 486.5 MB in the end (delta: 287.3 MB). Free memory was 136.3 MB in the beginning and 309.9 MB in the end (delta: -173.6 MB). Peak memory consumption was 113.8 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:01,596 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 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 454.72 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 87.1 MB in the beginning and 175.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.77 ms. Allocated memory is still 199.2 MB. Free memory was 175.5 MB in the beginning and 173.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 667.82 ms. Allocated memory is still 199.2 MB. Free memory was 173.6 MB in the beginning and 136.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * Sifa took 34707.07 ms. Allocated memory was 199.2 MB in the beginning and 486.5 MB in the end (delta: 287.3 MB). Free memory was 136.3 MB in the beginning and 309.9 MB in the end (delta: -173.6 MB). Peak memory consumption was 113.8 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]: 34667, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 965, DAG_INTERPRETER_EARLY_EXITS: 42, TOOLS_POST_APPLICATIONS: 701, TOOLS_POST_TIME[ms]: 268, TOOLS_POST_CALL_APPLICATIONS: 164, TOOLS_POST_CALL_TIME[ms]: 319, TOOLS_POST_RETURN_APPLICATIONS: 158, TOOLS_POST_RETURN_TIME[ms]: 151, TOOLS_QUANTIFIERELIM_APPLICATIONS: 1000, TOOLS_QUANTIFIERELIM_TIME[ms]: 523, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 23, FLUID_QUERY_TIME[ms]: 23, FLUID_QUERIES: 1056, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 203, DOMAIN_JOIN_TIME[ms]: 30006, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME[ms]: 3250, DOMAIN_ISSUBSETEQ_APPLICATIONS: 91, DOMAIN_ISSUBSETEQ_TIME[ms]: 40, DOMAIN_ISBOTTOM_APPLICATIONS: 165, DOMAIN_ISBOTTOM_TIME[ms]: 403, LOOP_SUMMARIZER_APPLICATIONS: 84, LOOP_SUMMARIZER_CACHE_MISSES: 84, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 29434, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 29433, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 91, CALL_SUMMARIZER_APPLICATIONS: 158, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13898, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 13897, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 54, DAG_COMPRESSION_PROCESSED_NODES: 709, DAG_COMPRESSION_RETAINED_NODES: 320 - UnprovableResult [Line: 9]: 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 1481#(or (and (= ~q_read_ev~0 2) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (or (and (= 0 ~p_dw_st~0) (and (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0))) (and (and (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (not (= 1 ~p_dw_pc~0)))) (not (= ~c_num_read~0 ~p_num_write~0))) (and (= ~q_read_ev~0 2) (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (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...