/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 04:10:57,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 04:10:57,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 04:10:57,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 04:10:57,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 04:10:57,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 04:10:57,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 04:10:57,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 04:10:57,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 04:10:57,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 04:10:57,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 04:10:57,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 04:10:57,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 04:10:57,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 04:10:57,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 04:10:57,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 04:10:57,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 04:10:57,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 04:10:57,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 04:10:57,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 04:10:57,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 04:10:57,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 04:10:57,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 04:10:57,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 04:10:57,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 04:10:57,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 04:10:57,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 04:10:57,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 04:10:57,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 04:10:57,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-20 04:10:57,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 04:10:57,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 04:10:57,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 04:10:57,273 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 [2020-07-20 04:10:57,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 04:10:57,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 04:10:57,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 04:10:57,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 04:10:57,303 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 04:10:57,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 04:10:57,304 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 04:10:57,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 04:10:57,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 04:10:57,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 04:10:57,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 04:10:57,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 04:10:57,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 04:10:57,305 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 04:10:57,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 04:10:57,306 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 04:10:57,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 04:10:57,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 04:10:57,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 04:10:57,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 04:10:57,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 04:10:57,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 04:10:57,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 04:10:57,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 04:10:57,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 04:10:57,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 04:10:57,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 04:10:57,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 04:10:57,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 04:10:57,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 04:10:57,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 04:10:57,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 04:10:57,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 04:10:57,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 04:10:57,782 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 04:10:57,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2020-07-20 04:10:57,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545de9cd/f304bf03c9554f268fe7344e1f22e6bd/FLAGaf8f06b27 [2020-07-20 04:10:58,692 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 04:10:58,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2020-07-20 04:10:58,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545de9cd/f304bf03c9554f268fe7344e1f22e6bd/FLAGaf8f06b27 [2020-07-20 04:10:58,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545de9cd/f304bf03c9554f268fe7344e1f22e6bd [2020-07-20 04:10:58,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 04:10:58,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 04:10:58,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 04:10:58,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 04:10:58,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 04:10:58,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:10:58" (1/1) ... [2020-07-20 04:10:58,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29016e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:58, skipping insertion in model container [2020-07-20 04:10:58,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:10:58" (1/1) ... [2020-07-20 04:10:58,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 04:10:58,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 04:10:59,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:10:59,222 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 04:10:59,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:10:59,290 INFO L208 MainTranslator]: Completed translation [2020-07-20 04:10:59,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59 WrapperNode [2020-07-20 04:10:59,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 04:10:59,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 04:10:59,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 04:10:59,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 04:10:59,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (1/1) ... [2020-07-20 04:10:59,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 04:10:59,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 04:10:59,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 04:10:59,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 04:10:59,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (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 [2020-07-20 04:10:59,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 04:10:59,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 04:10:59,489 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 04:10:59,489 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-07-20 04:10:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-07-20 04:10:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-07-20 04:10:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-07-20 04:10:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-07-20 04:10:59,491 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 04:10:59,491 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 04:10:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 04:10:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 04:10:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 04:10:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 04:10:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 04:10:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-07-20 04:10:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-07-20 04:10:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 04:10:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 04:10:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 04:10:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 04:10:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 04:10:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 04:10:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 04:10:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 04:10:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 04:11:00,002 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 04:11:00,003 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 04:11:00,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:11:00 BoogieIcfgContainer [2020-07-20 04:11:00,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 04:11:00,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 04:11:00,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 04:11:00,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 04:11:00,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:10:58" (1/3) ... [2020-07-20 04:11:00,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa2b9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:11:00, skipping insertion in model container [2020-07-20 04:11:00,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:10:59" (2/3) ... [2020-07-20 04:11:00,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa2b9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:11:00, skipping insertion in model container [2020-07-20 04:11:00,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:11:00" (3/3) ... [2020-07-20 04:11:00,029 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2020-07-20 04:11:00,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 04:11:00,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 04:11:00,088 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 04:11:00,132 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 04:11:00,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 04:11:00,133 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 04:11:00,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 04:11:00,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 04:11:00,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 04:11:00,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 04:11:00,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 04:11:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-20 04:11:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-20 04:11:00,184 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:11:00,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:11:00,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:11:00,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:11:00,195 INFO L82 PathProgramCache]: Analyzing trace with hash 332338830, now seen corresponding path program 1 times [2020-07-20 04:11:00,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:11:00,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993212409] [2020-07-20 04:11:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@53fb33a5 [2020-07-20 04:11:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 04:11:00,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 04:11:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 04:11:00,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 04:11:00,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 04:11:00,667 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 04:11:00,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 04:11:00,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:11:00 BoogieIcfgContainer [2020-07-20 04:11:00,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 04:11:00,772 INFO L168 Benchmark]: Toolchain (without parser) took 1888.68 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 127.4 MB in the end (delta: -26.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,773 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.26 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 88.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,776 INFO L168 Benchmark]: Boogie Preprocessor took 128.61 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 88.4 MB in the beginning and 176.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,778 INFO L168 Benchmark]: RCFGBuilder took 594.24 ms. Allocated memory is still 199.2 MB. Free memory was 176.6 MB in the beginning and 150.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,779 INFO L168 Benchmark]: TraceAbstraction took 749.59 ms. Allocated memory is still 199.2 MB. Free memory was 149.7 MB in the beginning and 127.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-20 04:11:00,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 407.26 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 88.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.61 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 88.4 MB in the beginning and 176.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 594.24 ms. Allocated memory is still 199.2 MB. Free memory was 176.6 MB in the beginning and 150.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 749.59 ms. Allocated memory is still 199.2 MB. Free memory was 149.7 MB in the beginning and 127.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int q_buf_0 ; [L15] int q_free ; [L16] int q_read_ev ; [L17] int q_write_ev ; [L18] int p_num_write ; [L19] int p_last_write ; [L20] int p_dw_st ; [L21] int p_dw_pc ; [L22] int p_dw_i ; [L23] int c_num_read ; [L24] int c_last_read ; [L25] int c_dr_st ; [L26] int c_dr_pc ; [L27] int c_dr_i ; [L134] static int a_t ; VAL [\old(a_t)=11, \old(c_dr_i)=3, \old(c_dr_pc)=12, \old(c_dr_st)=15, \old(c_last_read)=5, \old(c_num_read)=6, \old(p_dw_i)=4, \old(p_dw_pc)=14, \old(p_dw_st)=9, \old(p_last_write)=17, \old(p_num_write)=7, \old(q_buf_0)=10, \old(q_free)=16, \old(q_read_ev)=13, \old(q_write_ev)=8, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L350] int __retres1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L354] CALL init_model() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L336] q_free = 1 [L337] q_write_ev = 2 [L338] q_read_ev = q_write_ev [L339] p_num_write = 0 [L340] p_dw_pc = 0 [L341] p_dw_i = 1 [L342] c_num_read = 0 [L343] c_dr_pc = 0 [L344] c_dr_i = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L354] RET init_model() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L355] CALL start_simulation() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L304] int kernel_st ; [L305] int tmp ; [L309] kernel_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L310] CALL init_threads() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L196] COND TRUE (int )p_dw_i == 1 [L197] p_dw_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L201] COND TRUE (int )c_dr_i == 1 [L202] c_dr_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L310] RET init_threads() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L313] COND TRUE 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L316] kernel_st = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=1, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L317] CALL eval() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L237] COND TRUE 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] CALL, EXPR exists_runnable_thread() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L211] int __retres1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L214] COND TRUE (int )p_dw_st == 0 [L215] __retres1 = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L227] return (__retres1); VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, \result=1, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] RET, EXPR exists_runnable_thread() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, exists_runnable_thread()=1, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] tmp___1 = exists_runnable_thread() [L242] COND TRUE \read(tmp___1) VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp___1=1] [L247] COND TRUE (int )p_dw_st == 0 [L249] tmp = __VERIFIER_nondet_int() [L251] COND FALSE !(\read(tmp)) VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp=0, tmp___1=1] [L257] CALL error() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L9] __VERIFIER_error() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...