/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_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:06:20,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:06:20,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:06:20,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:06:20,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:06:20,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:06:20,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:06:20,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:06:20,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:06:20,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:06:20,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:06:20,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:06:20,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:06:20,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:06:20,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:06:20,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:06:20,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:06:20,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:06:20,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:06:20,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:06:20,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:06:20,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:06:20,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:06:20,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:06:20,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 14:06:20,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 14:06:20,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 14:06:20,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 14:06:20,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 14:06:20,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 14:06:20,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 14:06:20,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 14:06:20,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 14:06:20,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 14:06:20,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 14:06:20,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 14:06:20,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 14:06:20,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 14:06:20,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 14:06:20,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 14:06:20,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 14:06:20,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 14:06:20,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:06:20,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:06:20,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:06:20,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 14:06:20,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:06:20,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 14:06:20,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:06:20,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:06:20,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:06:20,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:06:20,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 14:06:20,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:06:20,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:06:20,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:06:20,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:06:20,758 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:06:20,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:06:20,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:06:20,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:06:20,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:06:20,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:06:20,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:06:20,760 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:06:21,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:06:21,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:06:21,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:06:21,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:06:21,086 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:06:21,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2020-07-07 14:06:21,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6b7b1c2/03d8aef0b0d842bf8d0830ecc0445374/FLAGcb4f222bd [2020-07-07 14:06:21,613 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:06:21,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2020-07-07 14:06:21,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6b7b1c2/03d8aef0b0d842bf8d0830ecc0445374/FLAGcb4f222bd [2020-07-07 14:06:21,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6b7b1c2/03d8aef0b0d842bf8d0830ecc0445374 [2020-07-07 14:06:21,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:06:21,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:06:21,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:06:21,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:06:21,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:06:22,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:06:21" (1/1) ... [2020-07-07 14:06:22,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5651b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22, skipping insertion in model container [2020-07-07 14:06:22,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:06:21" (1/1) ... [2020-07-07 14:06:22,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:06:22,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:06:22,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:06:22,281 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:06:22,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:06:22,339 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:06:22,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22 WrapperNode [2020-07-07 14:06:22,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:06:22,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:06:22,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:06:22,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:06:22,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (1/1) ... [2020-07-07 14:06:22,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:06:22,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:06:22,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:06:22,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:06:22,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (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 [2020-07-07 14:06:22,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:06:22,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-07-07 14:06:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-07 14:06:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:06:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:06:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 14:06:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-07 14:06:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-07-07 14:06:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-07-07 14:06:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-07-07 14:06:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-07-07 14:06:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-07 14:06:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-07 14:06:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:06:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:06:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:06:23,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:06:23,084 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-07 14:06:23,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:06:23 BoogieIcfgContainer [2020-07-07 14:06:23,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:06:23,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:06:23,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:06:23,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:06:23,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:06:21" (1/3) ... [2020-07-07 14:06:23,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe1b40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:06:23, skipping insertion in model container [2020-07-07 14:06:23,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:22" (2/3) ... [2020-07-07 14:06:23,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe1b40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:06:23, skipping insertion in model container [2020-07-07 14:06:23,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:06:23" (3/3) ... [2020-07-07 14:06:23,098 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2020-07-07 14:06:23,106 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:06:23,114 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 14:06:23,127 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 14:06:23,149 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:06:23,149 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:06:23,149 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:06:23,150 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:06:23,150 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:06:23,150 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:06:23,150 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:06:23,151 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:06:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-07-07 14:06:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-07 14:06:23,185 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:06:23,186 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, 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] [2020-07-07 14:06:23,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:06:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:06:23,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1380535506, now seen corresponding path program 1 times [2020-07-07 14:06:23,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:06:23,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269737857] [2020-07-07 14:06:23,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:06:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:06:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 14:06:23,521 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:06:23,523 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 14:06:23,524 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 14:06:23,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:06:23,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 02:06:23 BoogieIcfgContainer [2020-07-07 14:06:23,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 14:06:23,551 INFO L168 Benchmark]: Toolchain (without parser) took 1556.74 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 124.6 MB in the end (delta: -21.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,552 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.61 ms. Allocated memory is still 144.2 MB. Free memory was 102.2 MB in the beginning and 90.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,554 INFO L168 Benchmark]: Boogie Preprocessor took 165.23 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 90.0 MB in the beginning and 179.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,555 INFO L168 Benchmark]: RCFGBuilder took 584.45 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 146.5 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,559 INFO L168 Benchmark]: TraceAbstraction took 456.23 ms. Allocated memory is still 201.3 MB. Free memory was 146.5 MB in the beginning and 124.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:23,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.61 ms. Allocated memory is still 144.2 MB. Free memory was 102.2 MB in the beginning and 90.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.23 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 90.0 MB in the beginning and 179.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 584.45 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 146.5 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 456.23 ms. Allocated memory is still 201.3 MB. Free memory was 146.5 MB in the beginning and 124.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 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 ; [L350] int __retres1 ; [L354] CALL init_model() [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 [L354] RET init_model() [L355] CALL start_simulation() [L304] int kernel_st ; [L305] int tmp ; [L309] kernel_st = 0 [L310] CALL init_threads() [L196] COND TRUE (int )p_dw_i == 1 [L197] p_dw_st = 0 [L201] COND TRUE (int )c_dr_i == 1 [L202] c_dr_st = 0 [L310] RET init_threads() [L313] COND TRUE 1 [L316] kernel_st = 1 [L317] CALL eval() [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L237] COND TRUE 1 [L240] CALL, EXPR exists_runnable_thread() [L211] int __retres1 ; [L214] COND TRUE (int )p_dw_st == 0 [L215] __retres1 = 1 [L227] return (__retres1); [L240] RET, EXPR exists_runnable_thread() [L240] tmp___1 = exists_runnable_thread() [L242] COND TRUE \read(tmp___1) [L247] COND TRUE (int )p_dw_st == 0 [L249] tmp = __VERIFIER_nondet_int() [L251] COND FALSE !(\read(tmp)) [L257] CALL error() [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=183occurred 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...