/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:57:06,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:57:06,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:57:06,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:57:06,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:57:06,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:57:06,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:57:06,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:57:06,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:57:06,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:57:06,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:57:06,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:57:06,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:57:06,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:57:06,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:57:06,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:57:06,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:57:06,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:57:06,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:57:06,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:57:06,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:57:06,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:57:06,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:57:06,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:57:06,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 14:57:06,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 14:57:06,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 14:57:06,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 14:57:06,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 14:57:06,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 14:57:06,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 14:57:06,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 14:57:06,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 14:57:06,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 14:57:06,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 14:57:06,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 14:57:06,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 14:57:06,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 14:57:06,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:57:06,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:57:06,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:57:06,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:57:06,596 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:57:06,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:57:06,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:57:06,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:57:06,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:57:06,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:57:06,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:57:06,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:57:06,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:57:06,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:57:06,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:57:06,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:57:06,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:57:06,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:57:06,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:57:06,606 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:57:06,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:57:06,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:57:06,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:57:06,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:57:06,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:57:06,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:57:06,607 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:57:06,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:57:06,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:57:06,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:57:06,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:57:06,994 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:57:06,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2020-07-17 14:57:07,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ed5b0d6/60ca9d4866ce424bb6d75712679d46f9/FLAGec3f74c0c [2020-07-17 14:57:07,729 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:57:07,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2020-07-17 14:57:07,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ed5b0d6/60ca9d4866ce424bb6d75712679d46f9/FLAGec3f74c0c [2020-07-17 14:57:08,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ed5b0d6/60ca9d4866ce424bb6d75712679d46f9 [2020-07-17 14:57:08,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:57:08,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:57:08,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:57:08,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:57:08,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:57:08,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504ad9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08, skipping insertion in model container [2020-07-17 14:57:08,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:57:08,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:57:08,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:57:08,393 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:57:08,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:57:08,590 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:57:08,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08 WrapperNode [2020-07-17 14:57:08,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:57:08,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:57:08,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:57:08,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:57:08,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (1/1) ... [2020-07-17 14:57:08,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:57:08,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:57:08,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:57:08,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:57:08,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (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 [2020-07-17 14:57:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:57:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:57:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-17 14:57:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-07-17 14:57:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-07-17 14:57:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-07-17 14:57:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-07-17 14:57:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-07-17 14:57:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-07-17 14:57:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-17 14:57:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-17 14:57:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-17 14:57:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-17 14:57:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-17 14:57:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-17 14:57:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-17 14:57:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-17 14:57:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-17 14:57:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-17 14:57:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:57:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:57:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:57:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-17 14:57:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-07-17 14:57:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-07-17 14:57:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-07-17 14:57:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-07-17 14:57:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-07-17 14:57:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-07-17 14:57:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-17 14:57:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-17 14:57:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-17 14:57:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-17 14:57:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:57:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:57:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:57:09,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:57:09,445 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-17 14:57:09,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:57:09 BoogieIcfgContainer [2020-07-17 14:57:09,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:57:09,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:57:09,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:57:09,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:57:09,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:57:08" (1/3) ... [2020-07-17 14:57:09,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630d0953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:57:09, skipping insertion in model container [2020-07-17 14:57:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:57:08" (2/3) ... [2020-07-17 14:57:09,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630d0953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:57:09, skipping insertion in model container [2020-07-17 14:57:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:57:09" (3/3) ... [2020-07-17 14:57:09,467 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2020-07-17 14:57:09,480 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:57:09,491 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:57:09,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:57:09,545 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:57:09,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:57:09,546 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:57:09,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:57:09,546 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:57:09,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:57:09,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:57:09,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:57:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-07-17 14:57:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-17 14:57:09,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:57:09,597 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:57:09,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:57:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:57:09,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2038925416, now seen corresponding path program 1 times [2020-07-17 14:57:09,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:57:09,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442727907] [2020-07-17 14:57:09,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:57:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 14:57:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 14:57:10,090 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:57:10,093 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 14:57:10,093 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 14:57:10,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:57:10,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 02:57:10 BoogieIcfgContainer [2020-07-17 14:57:10,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 14:57:10,131 INFO L168 Benchmark]: Toolchain (without parser) took 2098.23 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 97.8 MB in the beginning and 110.8 MB in the end (delta: -13.0 MB). Peak memory consumption was 52.5 MB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,133 INFO L168 Benchmark]: CDTParser took 1.55 ms. Allocated memory is still 134.7 MB. Free memory was 116.9 MB in the beginning and 116.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.23 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 97.6 MB in the beginning and 178.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,135 INFO L168 Benchmark]: Boogie Preprocessor took 63.35 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 175.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,136 INFO L168 Benchmark]: RCFGBuilder took 798.23 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 137.1 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,137 INFO L168 Benchmark]: TraceAbstraction took 670.41 ms. Allocated memory is still 200.3 MB. Free memory was 137.1 MB in the beginning and 110.8 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:57:10,142 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55 ms. Allocated memory is still 134.7 MB. Free memory was 116.9 MB in the beginning and 116.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 551.23 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 97.6 MB in the beginning and 178.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.35 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 175.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 798.23 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 137.1 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 670.41 ms. Allocated memory is still 200.3 MB. Free memory was 137.1 MB in the beginning and 110.8 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int q_buf_0 ; [L16] int q_free ; [L17] int q_read_ev ; [L18] int q_write_ev ; [L19] int q_req_up ; [L20] int q_ev ; [L41] int p_num_write ; [L42] int p_last_write ; [L43] int p_dw_st ; [L44] int p_dw_pc ; [L45] int p_dw_i ; [L46] int c_num_read ; [L47] int c_last_read ; [L48] int c_dr_st ; [L49] int c_dr_pc ; [L50] int c_dr_i ; [L154] static int a_t ; [L456] int __retres1 ; [L460] CALL init_model() [L442] q_free = 1 [L443] q_write_ev = 2 [L444] q_read_ev = q_write_ev [L445] p_num_write = 0 [L446] p_dw_pc = 0 [L447] p_dw_i = 1 [L448] c_num_read = 0 [L449] c_dr_pc = 0 [L450] c_dr_i = 1 [L460] RET init_model() [L461] CALL start_simulation() [L396] int kernel_st ; [L397] int tmp ; [L401] kernel_st = 0 [L402] CALL update_channels() [L212] COND FALSE !((int )q_req_up == 1) [L402] RET update_channels() [L403] CALL init_threads() [L227] COND TRUE (int )p_dw_i == 1 [L228] p_dw_st = 0 [L232] COND TRUE (int )c_dr_i == 1 [L233] c_dr_st = 0 [L403] RET init_threads() [L404] CALL fire_delta_events() [L265] COND FALSE !((int )q_read_ev == 0) [L270] COND FALSE !((int )q_write_ev == 0) [L404] RET fire_delta_events() [L405] CALL activate_threads() [L298] int tmp ; [L299] int tmp___0 ; [L303] CALL, EXPR is_do_write_p_triggered() [L52] int __retres1 ; [L55] COND FALSE !((int )p_dw_pc == 1) [L65] __retres1 = 0 [L67] return (__retres1); [L303] RET, EXPR is_do_write_p_triggered() [L303] tmp = is_do_write_p_triggered() [L305] COND FALSE !(\read(tmp)) [L311] CALL, EXPR is_do_read_c_triggered() [L71] int __retres1 ; [L74] COND FALSE !((int )c_dr_pc == 1) [L84] __retres1 = 0 [L86] return (__retres1); [L311] RET, EXPR is_do_read_c_triggered() [L311] tmp___0 = is_do_read_c_triggered() [L313] COND FALSE !(\read(tmp___0)) [L405] RET activate_threads() [L406] CALL reset_delta_events() [L283] COND FALSE !((int )q_read_ev == 1) [L288] COND FALSE !((int )q_write_ev == 1) [L406] RET reset_delta_events() [L409] COND TRUE 1 [L412] kernel_st = 1 [L413] CALL eval() [L323] int tmp ; [L324] int tmp___0 ; [L325] int tmp___1 ; [L329] COND TRUE 1 [L332] CALL, EXPR exists_runnable_thread() [L242] int __retres1 ; [L245] COND TRUE (int )p_dw_st == 0 [L246] __retres1 = 1 [L258] return (__retres1); [L332] RET, EXPR exists_runnable_thread() [L332] tmp___1 = exists_runnable_thread() [L334] COND TRUE \read(tmp___1) [L339] COND TRUE (int )p_dw_st == 0 [L341] tmp = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp)) [L349] CALL error() [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 20 procedures, 231 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=228occurred 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: No data available, 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...