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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 10:08:31,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 10:08:31,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 10:08:31,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 10:08:31,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 10:08:31,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 10:08:31,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 10:08:31,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 10:08:31,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 10:08:31,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 10:08:31,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 10:08:31,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 10:08:31,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 10:08:31,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 10:08:31,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 10:08:31,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 10:08:31,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 10:08:31,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 10:08:31,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 10:08:31,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 10:08:31,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 10:08:31,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 10:08:31,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 10:08:31,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 10:08:31,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-21 10:08:31,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 10:08:31,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 10:08:31,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 10:08:31,209 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 [2019-09-21 10:08:31,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 10:08:31,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 10:08:31,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 10:08:31,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 10:08:31,234 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 10:08:31,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 10:08:31,235 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 10:08:31,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 10:08:31,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 10:08:31,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 10:08:31,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 10:08:31,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 10:08:31,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 10:08:31,237 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 10:08:31,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 10:08:31,237 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 10:08:31,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 10:08:31,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 10:08:31,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 10:08:31,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 10:08:31,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 10:08:31,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 10:08:31,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 10:08:31,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 10:08:31,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 10:08:31,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 10:08:31,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 10:08:31,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 10:08:31,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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_QUICK [2019-09-21 10:08:31,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 10:08:31,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 10:08:31,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 10:08:31,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 10:08:31,294 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 10:08:31,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2019-09-21 10:08:31,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/734fa69d9/27d2e381b9e24ac1ae1b48cb24d9d2eb/FLAGf3397c251 [2019-09-21 10:08:31,790 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 10:08:31,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2019-09-21 10:08:31,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/734fa69d9/27d2e381b9e24ac1ae1b48cb24d9d2eb/FLAGf3397c251 [2019-09-21 10:08:32,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/734fa69d9/27d2e381b9e24ac1ae1b48cb24d9d2eb [2019-09-21 10:08:32,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 10:08:32,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 10:08:32,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 10:08:32,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 10:08:32,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 10:08:32,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283534bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32, skipping insertion in model container [2019-09-21 10:08:32,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,202 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 10:08:32,248 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 10:08:32,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 10:08:32,480 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 10:08:32,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 10:08:32,611 INFO L192 MainTranslator]: Completed translation [2019-09-21 10:08:32,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32 WrapperNode [2019-09-21 10:08:32,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 10:08:32,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 10:08:32,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 10:08:32,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 10:08:32,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (1/1) ... [2019-09-21 10:08:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 10:08:32,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 10:08:32,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 10:08:32,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 10:08:32,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:32" (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 [2019-09-21 10:08:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 10:08:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 10:08:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-21 10:08:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-21 10:08:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-21 10:08:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-21 10:08:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-21 10:08:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-21 10:08:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-21 10:08:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-21 10:08:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-21 10:08:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-21 10:08:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-21 10:08:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-21 10:08:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 10:08:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 10:08:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 10:08:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-21 10:08:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-21 10:08:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-21 10:08:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-21 10:08:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-21 10:08:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-21 10:08:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-21 10:08:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-21 10:08:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-21 10:08:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-21 10:08:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-21 10:08:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-21 10:08:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 10:08:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 10:08:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 10:08:33,309 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 10:08:33,309 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-21 10:08:33,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:33 BoogieIcfgContainer [2019-09-21 10:08:33,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 10:08:33,311 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 10:08:33,311 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 10:08:33,311 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 10:08:33,312 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:33" (1/1) ... [2019-09-21 10:08:33,313 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ 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_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 10:08:33,343 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 10:08:33,344 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 10:08:33,351 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 10:08:33,359 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 10:08:33,360 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 10:08:33,643 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 72 for LOIs [2019-09-21 10:08:33,745 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 70 for LOIs [2019-09-21 10:08:35,798 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 77 for LOIs [2019-09-21 10:08:40,895 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 150 [2019-09-21 10:08:42,273 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 65 for LOIs [2019-09-21 10:08:43,159 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 131 for LOIs [2019-09-21 10:08:43,271 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 10:08:43,272 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 10:08:43,275 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1758#(and (<= 0 ~p_dw_st~0) (or (or (and (or (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (<= 0 ~a_t~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 0) (or (and (= 0 (+ ~c_num_read~0 (- 1))) (= ~a_t~0 0) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= ~c_dr_pc~0 1) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (<= ~c_dr_pc~0 0))) (= ~q_read_ev~0 2) (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))) (and (<= 0 ~q_free~0) (or (and (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= 0 ~q_free~0) (<= 2 ~p_dw_st~0) (= 2 ~p_dw_st~0) (<= ~p_dw_st~0 2) (or (and (<= ~p_dw_i~0 1) (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0)) (and (<= 0 ~c_last_read~0) (= ~q_read_ev~0 2) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 0 ~c_num_read~0) (<= ~a_t~0 0) (<= 2 ~q_read_ev~0) (= ~c_last_read~0 0) (<= ~c_dr_pc~0 0) (<= ~c_num_read~0 0) (= 1 ~c_dr_i~0) (= ~c_num_read~0 0) (= ~a_t~0 0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (<= ~c_last_read~0 0))) (not (= ~c_dr_st~0 0)) (<= ~q_free~0 0) (= 1 ~p_dw_pc~0)) (and (<= ~c_dr_st~0 2) (<= ~p_dw_i~0 1) (<= 2 ~c_dr_st~0) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (<= 1 ~c_dr_pc~0) (= ~c_dr_st~0 2) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (<= 0 ~c_dr_st~0) (<= ~c_dr_st~0 0) (<= ~p_dw_st~0 2) (<= ~q_free~0 0) (or (and (= ~q_read_ev~0 2) (<= ~p_dw_i~0 1) (<= 2 ~p_dw_st~0) (<= 0 ~c_num_read~0) (<= 2 ~q_read_ev~0) (= ~c_last_read~0 0) (= ~c_dr_st~0 0) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0) (<= ~c_num_read~0 0) (= ~c_num_read~0 0) (= 0 ~q_free~0) (= 2 ~p_dw_st~0) (= ~a_t~0 0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (and (<= ~p_dw_i~0 1) (<= 2 ~p_dw_st~0) (and (= 0 ~q_free~0) (= 2 ~p_dw_st~0) (= ~c_dr_pc~0 1) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (<= 1 ~c_dr_pc~0)))))) (and (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= ~c_dr_st~0 0) (= ~c_last_read~0 0) (= 0 ~p_last_write~0) (= ~c_dr_st~0 0) (= 1 ~c_dr_i~0) (<= ~c_num_read~0 0) (<= 0 ~p_num_write~0) (= ~q_write_ev~0 2) (= 1 ~q_free~0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (<= ~p_dw_pc~0 0) (<= ~p_num_write~0 0) (<= ~c_dr_st~0 2) (= ~q_read_ev~0 2) (<= 0 ~c_dr_st~0) (<= 0 ~c_num_read~0) (= 0 ~q_buf_0~0) (<= 2 ~q_read_ev~0) (= 0 ~p_dw_pc~0) (= ~c_num_read~0 0) (= ~a_t~0 0) (= ~p_dw_i~0 1) (= 0 ~p_num_write~0))) (<= ~p_dw_pc~0 1) (= 0 ~p_dw_st~0))) (and (= ~q_read_ev~0 2) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (and (or (and (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)))) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (<= 1 ~c_dr_pc~0))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 0)) (and (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)))))) (= 0 ~p_dw_st~0)))) (<= 0 ~p_dw_pc~0) (<= 0 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_st~0 0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 1)) [2019-09-21 10:08:43,294 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 10:08:43,294 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 10:08:43,297 INFO L168 Benchmark]: Toolchain (without parser) took 11111.80 ms. Allocated memory was 138.9 MB in the beginning and 603.5 MB in the end (delta: 464.5 MB). Free memory was 86.3 MB in the beginning and 417.9 MB in the end (delta: -331.7 MB). Peak memory consumption was 132.9 MB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,299 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.66 ms. Allocated memory was 138.9 MB in the beginning and 197.7 MB in the end (delta: 58.7 MB). Free memory was 86.1 MB in the beginning and 173.9 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,301 INFO L168 Benchmark]: Boogie Preprocessor took 41.08 ms. Allocated memory is still 197.7 MB. Free memory was 173.9 MB in the beginning and 172.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,302 INFO L168 Benchmark]: RCFGBuilder took 656.78 ms. Allocated memory is still 197.7 MB. Free memory was 172.0 MB in the beginning and 134.5 MB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,308 INFO L168 Benchmark]: Sifa took 9983.65 ms. Allocated memory was 197.7 MB in the beginning and 603.5 MB in the end (delta: 405.8 MB). Free memory was 134.5 MB in the beginning and 417.9 MB in the end (delta: -283.4 MB). Peak memory consumption was 122.4 MB. Max. memory is 7.1 GB. [2019-09-21 10:08:43,318 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 426.66 ms. Allocated memory was 138.9 MB in the beginning and 197.7 MB in the end (delta: 58.7 MB). Free memory was 86.1 MB in the beginning and 173.9 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.08 ms. Allocated memory is still 197.7 MB. Free memory was 173.9 MB in the beginning and 172.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 656.78 ms. Allocated memory is still 197.7 MB. Free memory was 172.0 MB in the beginning and 134.5 MB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Sifa took 9983.65 ms. Allocated memory was 197.7 MB in the beginning and 603.5 MB in the end (delta: 405.8 MB). Free memory was 134.5 MB in the beginning and 417.9 MB in the end (delta: -283.4 MB). Peak memory consumption was 122.4 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]: 9932, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 925, DAG_INTERPRETER_EARLY_EXITS: 41, TOOLS_POST_APPLICATIONS: 643, TOOLS_POST_TIME[ms]: 421, TOOLS_POST_CALL_APPLICATIONS: 188, TOOLS_POST_CALL_TIME[ms]: 683, TOOLS_POST_RETURN_APPLICATIONS: 181, TOOLS_POST_RETURN_TIME[ms]: 264, TOOLS_QUANTIFIERELIM_APPLICATIONS: 940, TOOLS_QUANTIFIERELIM_TIME[ms]: 1084, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 20, FLUID_QUERY_TIME[ms]: 25, FLUID_QUERIES: 1006, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 181, DOMAIN_JOIN_TIME[ms]: 7757, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 194, DOMAIN_ISSUBSETEQ_APPLICATIONS: 81, DOMAIN_ISSUBSETEQ_TIME[ms]: 34, DOMAIN_ISBOTTOM_APPLICATIONS: 153, DOMAIN_ISBOTTOM_TIME[ms]: 347, LOOP_SUMMARIZER_APPLICATIONS: 80, LOOP_SUMMARIZER_CACHE_MISSES: 79, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 7269, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7268, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 81, CALL_SUMMARIZER_APPLICATIONS: 181, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2173, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2172, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 59, DAG_COMPRESSION_PROCESSED_NODES: 853, DAG_COMPRESSION_RETAINED_NODES: 352 - 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 1758#(and (<= 0 ~p_dw_st~0) (or (or (and (or (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (and (or (= 0 ~p_dw_st~0) (not (= 1 ~p_dw_pc~0))) (<= 0 ~a_t~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 0) (or (and (= 0 (+ ~c_num_read~0 (- 1))) (= ~a_t~0 0) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= ~c_dr_pc~0 1) (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0)) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (<= 1 ~c_dr_pc~0))) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (<= ~c_dr_pc~0 0))) (= ~q_read_ev~0 2) (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))) (and (<= 0 ~q_free~0) (or (and (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= 0 ~q_free~0) (<= 2 ~p_dw_st~0) (= 2 ~p_dw_st~0) (<= ~p_dw_st~0 2) (or (and (<= ~p_dw_i~0 1) (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0)) (and (<= 0 ~c_last_read~0) (= ~q_read_ev~0 2) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 0 ~c_num_read~0) (<= ~a_t~0 0) (<= 2 ~q_read_ev~0) (= ~c_last_read~0 0) (<= ~c_dr_pc~0 0) (<= ~c_num_read~0 0) (= 1 ~c_dr_i~0) (= ~c_num_read~0 0) (= ~a_t~0 0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (<= ~c_last_read~0 0))) (not (= ~c_dr_st~0 0)) (<= ~q_free~0 0) (= 1 ~p_dw_pc~0)) (and (<= ~c_dr_st~0 2) (<= ~p_dw_i~0 1) (<= 2 ~c_dr_st~0) (= ~c_dr_pc~0 1) (= 1 ~q_free~0) (<= 1 ~c_dr_pc~0) (= ~c_dr_st~0 2) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (<= 0 ~c_dr_st~0) (<= ~c_dr_st~0 0) (<= ~p_dw_st~0 2) (<= ~q_free~0 0) (or (and (= ~q_read_ev~0 2) (<= ~p_dw_i~0 1) (<= 2 ~p_dw_st~0) (<= 0 ~c_num_read~0) (<= 2 ~q_read_ev~0) (= ~c_last_read~0 0) (= ~c_dr_st~0 0) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0) (<= ~c_num_read~0 0) (= ~c_num_read~0 0) (= 0 ~q_free~0) (= 2 ~p_dw_st~0) (= ~a_t~0 0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1)) (and (<= ~p_dw_i~0 1) (<= 2 ~p_dw_st~0) (and (= 0 ~q_free~0) (= 2 ~p_dw_st~0) (= ~c_dr_pc~0 1) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (<= 1 ~c_dr_pc~0)))))) (and (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= ~c_dr_st~0 0) (= ~c_last_read~0 0) (= 0 ~p_last_write~0) (= ~c_dr_st~0 0) (= 1 ~c_dr_i~0) (<= ~c_num_read~0 0) (<= 0 ~p_num_write~0) (= ~q_write_ev~0 2) (= 1 ~q_free~0) (<= ~q_read_ev~0 2) (= ~c_dr_pc~0 0) (<= ~p_dw_pc~0 0) (<= ~p_num_write~0 0) (<= ~c_dr_st~0 2) (= ~q_read_ev~0 2) (<= 0 ~c_dr_st~0) (<= 0 ~c_num_read~0) (= 0 ~q_buf_0~0) (<= 2 ~q_read_ev~0) (= 0 ~p_dw_pc~0) (= ~c_num_read~0 0) (= ~a_t~0 0) (= ~p_dw_i~0 1) (= 0 ~p_num_write~0))) (<= ~p_dw_pc~0 1) (= 0 ~p_dw_st~0))) (and (= ~q_read_ev~0 2) (or (not (= ~c_dr_pc~0 1)) (= ~c_dr_st~0 0) (not (= ~q_write_ev~0 1))) (not (= ~c_num_read~0 ~p_num_write~0)) (= ~c_last_read~0 ~p_last_write~0) (and (or (and (or (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 0 ~a_t~0) (<= 1 ~p_dw_i~0) (<= ~a_t~0 0) (<= ~c_dr_pc~0 0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)))) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0))) (<= 1 ~c_dr_pc~0))) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (= ~c_dr_pc~0 0)) (and (not (= ~c_dr_pc~0 0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (and (<= ~p_dw_pc~0 1) (<= ~p_dw_i~0 1) (<= 1 ~p_dw_i~0) (<= 1 ~p_dw_pc~0) (or (and (= ~c_dr_pc~0 1) (<= 1 ~c_dr_pc~0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)) (and (= 0 (+ ~c_num_read~0 (- 1))) (<= 1 ~c_num_read~0) (<= ~c_num_read~0 1) (= ~a_t~0 0) (= ~c_dr_pc~0 0) (= ~p_dw_i~0 1) (= 1 ~c_dr_i~0) (= 1 ~p_dw_pc~0)))))) (= 0 ~p_dw_st~0)))) (<= 0 ~p_dw_pc~0) (<= 0 ~c_dr_pc~0) (<= 1 ~q_free~0) (<= 1 ~c_dr_i~0) (<= ~c_dr_i~0 1) (<= ~p_dw_st~0 0) (<= ~q_free~0 1) (<= ~c_dr_pc~0 1)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...