/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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 0.2.1-dev-b7b32d2 [2021-02-21 16:40:48,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:40:48,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:40:48,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:40:48,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:40:48,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:40:48,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:40:48,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:40:48,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:40:48,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:40:48,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:40:48,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:40:48,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:40:48,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:40:48,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:40:48,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:40:48,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:40:48,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:40:48,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:40:48,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:40:48,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:40:48,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:40:48,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:40:48,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:40:48,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:40:48,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:40:48,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:40:48,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:40:48,560 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 [2021-02-21 16:40:48,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:40:48,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:40:48,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:40:48,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:40:48,628 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:40:48,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:40:48,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:40:48,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:40:48,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:40:48,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:40:48,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:40:48,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:40:48,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:40:48,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:40:48,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:40:48,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:40:48,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:40:48,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:40:48,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:40:48,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:40:48,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:40:48,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:40:48,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:40:48,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:40:48,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:40:48,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:40:48,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:40:48,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:40:48,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:40:49,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:40:49,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:40:49,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:40:49,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:40:49,068 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:40:49,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2021-02-21 16:40:49,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e948bbebb/6a44f2eeefb3451e8602ab35b2f5006e/FLAGb12b4ad89 [2021-02-21 16:40:49,969 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:40:49,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2021-02-21 16:40:49,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e948bbebb/6a44f2eeefb3451e8602ab35b2f5006e/FLAGb12b4ad89 [2021-02-21 16:40:50,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e948bbebb/6a44f2eeefb3451e8602ab35b2f5006e [2021-02-21 16:40:50,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:40:50,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:40:50,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:40:50,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:40:50,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:40:50,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ac2b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50, skipping insertion in model container [2021-02-21 16:40:50,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:40:50,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:40:50,565 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c[337,350] [2021-02-21 16:40:50,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:40:50,623 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:40:50,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c[337,350] [2021-02-21 16:40:50,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:40:50,710 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:40:50,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50 WrapperNode [2021-02-21 16:40:50,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:40:50,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:40:50,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:40:50,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:40:50,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (1/1) ... [2021-02-21 16:40:50,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:40:50,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:40:50,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:40:50,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:40:50,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (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 [2021-02-21 16:40:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:40:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:40:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:40:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-21 16:40:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-02-21 16:40:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-02-21 16:40:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2021-02-21 16:40:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2021-02-21 16:40:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2021-02-21 16:40:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-21 16:40:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-21 16:40:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-21 16:40:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-21 16:40:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-21 16:40:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-21 16:40:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:40:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-21 16:40:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-21 16:40:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:40:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:40:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:40:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:40:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:40:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:40:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:40:51,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:40:51,439 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-21 16:40:51,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:40:51 BoogieIcfgContainer [2021-02-21 16:40:51,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:40:51,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:40:51,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:40:51,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:40:51,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:40:50" (1/3) ... [2021-02-21 16:40:51,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42abfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:40:51, skipping insertion in model container [2021-02-21 16:40:51,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:40:50" (2/3) ... [2021-02-21 16:40:51,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42abfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:40:51, skipping insertion in model container [2021-02-21 16:40:51,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:40:51" (3/3) ... [2021-02-21 16:40:51,459 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2021-02-21 16:40:51,470 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:40:51,476 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:40:51,501 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:40:51,540 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:40:51,540 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:40:51,541 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:40:51,541 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:40:51,541 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:40:51,541 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:40:51,542 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:40:51,542 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:40:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2021-02-21 16:40:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-21 16:40:51,576 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:40:51,577 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] [2021-02-21 16:40:51,577 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:40:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:40:51,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1592695502, now seen corresponding path program 1 times [2021-02-21 16:40:51,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:40:51,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760737464] [2021-02-21 16:40:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:40:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:40:51,835 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:40:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:40:51,924 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:40:51,994 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:40:51,995 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:40:51,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:40:52,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:40:52 BoogieIcfgContainer [2021-02-21 16:40:52,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:40:52,080 INFO L168 Benchmark]: Toolchain (without parser) took 1760.96 ms. Allocated memory is still 167.8 MB. Free memory was 142.6 MB in the beginning and 141.9 MB in the end (delta: 772.3 kB). Peak memory consumption was 39.3 MB. Max. memory is 8.0 GB. [2021-02-21 16:40:52,081 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:40:52,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.44 ms. Allocated memory is still 167.8 MB. Free memory was 141.6 MB in the beginning and 129.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:40:52,083 INFO L168 Benchmark]: Boogie Preprocessor took 50.18 ms. Allocated memory is still 167.8 MB. Free memory was 129.8 MB in the beginning and 127.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:40:52,084 INFO L168 Benchmark]: RCFGBuilder took 682.43 ms. Allocated memory is still 167.8 MB. Free memory was 127.8 MB in the beginning and 124.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. [2021-02-21 16:40:52,085 INFO L168 Benchmark]: TraceAbstraction took 629.53 ms. Allocated memory is still 167.8 MB. Free memory was 123.9 MB in the beginning and 141.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:40:52,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 380.44 ms. Allocated memory is still 167.8 MB. Free memory was 141.6 MB in the beginning and 129.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.18 ms. Allocated memory is still 167.8 MB. Free memory was 129.8 MB in the beginning and 127.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 682.43 ms. Allocated memory is still 167.8 MB. Free memory was 127.8 MB in the beginning and 124.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 629.53 ms. Allocated memory is still 167.8 MB. Free memory was 123.9 MB in the beginning and 141.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int q_buf_0 ; [L17] int q_free ; [L18] int q_read_ev ; [L19] int q_write_ev ; [L20] int p_num_write ; [L21] int p_last_write ; [L22] int p_dw_st ; [L23] int p_dw_pc ; [L24] int p_dw_i ; [L25] int c_num_read ; [L26] int c_last_read ; [L27] int c_dr_st ; [L28] int c_dr_pc ; [L29] int c_dr_i ; [L136] static int a_t ; VAL [\old(a_t)=64, \old(c_dr_i)=49, \old(c_dr_pc)=67, \old(c_dr_st)=69, \old(c_last_read)=53, \old(c_num_read)=54, \old(p_dw_i)=51, \old(p_dw_pc)=68, \old(p_dw_st)=58, \old(p_last_write)=71, \old(p_num_write)=57, \old(q_buf_0)=61, \old(q_free)=70, \old(q_read_ev)=66, \old(q_write_ev)=55, 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] [L352] 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] [L356] 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] [L338] q_free = 1 [L339] q_write_ev = 2 [L340] q_read_ev = q_write_ev [L341] p_num_write = 0 [L342] p_dw_pc = 0 [L343] p_dw_i = 1 [L344] c_num_read = 0 [L345] c_dr_pc = 0 [L346] 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] [L356] 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] [L357] 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] [L306] int kernel_st ; [L307] int tmp ; [L311] 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] [L312] 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] [L198] COND TRUE (int )p_dw_i == 1 [L199] 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] [L203] COND TRUE (int )c_dr_i == 1 [L204] 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] [L312] 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] [L315] 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] [L318] 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] [L319] 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] [L233] int tmp ; [L234] int tmp___0 ; [L235] 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] [L239] 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] [L242] 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] [L213] 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] [L216] COND TRUE (int )p_dw_st == 0 [L217] __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] [L229] 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] [L242] 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] [L242] tmp___1 = exists_runnable_thread() [L244] 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] [L249] COND TRUE (int )p_dw_st == 0 [L251] tmp = __VERIFIER_nondet_int() [L253] 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] [L259] 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] [L11] reach_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 16 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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...