/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:48:52,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:48:52,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:48:52,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:48:52,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:48:52,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:48:52,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:48:52,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:48:52,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:48:52,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:48:52,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:48:52,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:48:52,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:48:52,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:48:52,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:48:52,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:48:52,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:48:52,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:48:52,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:48:52,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:48:52,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:48:52,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:48:52,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:48:52,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:48:52,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:48:52,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:48:52,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:48:52,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:48:52,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:48:52,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:48:52,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:48:52,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:48:52,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:48:52,960 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:48:52,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:48:52,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:48:52,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:48:52,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:48:52,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:48:52,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:48:52,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:48:52,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:48:52,961 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:48:52,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:48:52,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:48:52,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:48:52,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:48:52,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:48:52,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:48:52,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:48:52,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:48:52,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:48:52,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:48:52,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:48:53,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:48:53,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:48:53,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:48:53,255 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:48:53,256 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:48:53,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-11-23 22:48:53,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8de3c898/87c6e8c971ac4c7181a331628c579e25/FLAG2246421f0 [2019-11-23 22:48:53,834 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:48:53,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-2.c [2019-11-23 22:48:53,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8de3c898/87c6e8c971ac4c7181a331628c579e25/FLAG2246421f0 [2019-11-23 22:48:54,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8de3c898/87c6e8c971ac4c7181a331628c579e25 [2019-11-23 22:48:54,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:48:54,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:48:54,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:48:54,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:48:54,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:48:54,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297b1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54, skipping insertion in model container [2019-11-23 22:48:54,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:48:54,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:48:54,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:48:54,513 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:48:54,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:48:54,663 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:48:54,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54 WrapperNode [2019-11-23 22:48:54,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:48:54,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:48:54,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:48:54,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:48:54,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:48:54,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:48:54,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:48:54,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:48:54,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... [2019-11-23 22:48:54,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:48:54,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:48:54,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:48:54,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:48:54,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:48:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:48:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:48:55,359 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:48:55,359 INFO L284 CfgBuilder]: Removed 60 assume(true) statements. [2019-11-23 22:48:55,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:55 BoogieIcfgContainer [2019-11-23 22:48:55,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:48:55,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:48:55,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:48:55,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:48:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:48:54" (1/3) ... [2019-11-23 22:48:55,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a8ed56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:55, skipping insertion in model container [2019-11-23 22:48:55,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:54" (2/3) ... [2019-11-23 22:48:55,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a8ed56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:55, skipping insertion in model container [2019-11-23 22:48:55,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:55" (3/3) ... [2019-11-23 22:48:55,369 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2019-11-23 22:48:55,379 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:48:55,387 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-23 22:48:55,398 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-23 22:48:55,426 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:48:55,426 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:48:55,426 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:48:55,427 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:48:55,428 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:48:55,428 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:48:55,428 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:48:55,429 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:48:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2019-11-23 22:48:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 22:48:55,469 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:55,471 INFO L410 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] [2019-11-23 22:48:55,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:55,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1129554405, now seen corresponding path program 1 times [2019-11-23 22:48:55,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:55,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258240528] [2019-11-23 22:48:55,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:48:55,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258240528] [2019-11-23 22:48:55,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:55,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:55,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149984622] [2019-11-23 22:48:55,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:55,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:55,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:55,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:55,680 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2019-11-23 22:48:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:55,796 INFO L93 Difference]: Finished difference Result 272 states and 425 transitions. [2019-11-23 22:48:55,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:55,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-23 22:48:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:55,813 INFO L225 Difference]: With dead ends: 272 [2019-11-23 22:48:55,814 INFO L226 Difference]: Without dead ends: 178 [2019-11-23 22:48:55,818 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-11-23 22:48:55,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2019-11-23 22:48:55,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-11-23 22:48:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 252 transitions. [2019-11-23 22:48:55,884 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 252 transitions. Word has length 33 [2019-11-23 22:48:55,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:55,885 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 252 transitions. [2019-11-23 22:48:55,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:55,885 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 252 transitions. [2019-11-23 22:48:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 22:48:55,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:55,887 INFO L410 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] [2019-11-23 22:48:55,887 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:55,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:55,888 INFO L82 PathProgramCache]: Analyzing trace with hash 875581448, now seen corresponding path program 1 times [2019-11-23 22:48:55,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:55,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520697858] [2019-11-23 22:48:55,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:48:56,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520697858] [2019-11-23 22:48:56,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:56,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:56,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972077905] [2019-11-23 22:48:56,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:56,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:56,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:56,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:56,009 INFO L87 Difference]: Start difference. First operand 172 states and 252 transitions. Second operand 3 states. [2019-11-23 22:48:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:56,130 INFO L93 Difference]: Finished difference Result 495 states and 723 transitions. [2019-11-23 22:48:56,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:56,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-23 22:48:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:56,134 INFO L225 Difference]: With dead ends: 495 [2019-11-23 22:48:56,134 INFO L226 Difference]: Without dead ends: 339 [2019-11-23 22:48:56,137 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2019-11-23 22:48:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 333. [2019-11-23 22:48:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2019-11-23 22:48:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 482 transitions. [2019-11-23 22:48:56,189 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 482 transitions. Word has length 33 [2019-11-23 22:48:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:56,190 INFO L462 AbstractCegarLoop]: Abstraction has 333 states and 482 transitions. [2019-11-23 22:48:56,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 482 transitions. [2019-11-23 22:48:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 22:48:56,193 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:56,193 INFO L410 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] [2019-11-23 22:48:56,193 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:56,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1133746886, now seen corresponding path program 1 times [2019-11-23 22:48:56,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:56,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397705056] [2019-11-23 22:48:56,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:48:56,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397705056] [2019-11-23 22:48:56,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:56,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-23 22:48:56,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301578966] [2019-11-23 22:48:56,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:48:56,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:56,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:48:56,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:48:56,310 INFO L87 Difference]: Start difference. First operand 333 states and 482 transitions. Second operand 5 states. [2019-11-23 22:48:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:56,472 INFO L93 Difference]: Finished difference Result 1067 states and 1549 transitions. [2019-11-23 22:48:56,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:48:56,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-23 22:48:56,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:56,478 INFO L225 Difference]: With dead ends: 1067 [2019-11-23 22:48:56,478 INFO L226 Difference]: Without dead ends: 789 [2019-11-23 22:48:56,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:48:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-11-23 22:48:56,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 345. [2019-11-23 22:48:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-11-23 22:48:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 490 transitions. [2019-11-23 22:48:56,554 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 490 transitions. Word has length 33 [2019-11-23 22:48:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:56,555 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 490 transitions. [2019-11-23 22:48:56,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:48:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 490 transitions. [2019-11-23 22:48:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 22:48:56,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:56,570 INFO L410 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] [2019-11-23 22:48:56,570 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:56,571 INFO L82 PathProgramCache]: Analyzing trace with hash 316098436, now seen corresponding path program 1 times [2019-11-23 22:48:56,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:56,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502870466] [2019-11-23 22:48:56,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:48:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:48:56,679 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 22:48:56,679 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 22:48:56,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:48:56 BoogieIcfgContainer [2019-11-23 22:48:56,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:48:56,788 INFO L168 Benchmark]: Toolchain (without parser) took 2586.58 ms. Allocated memory was 146.3 MB in the beginning and 234.9 MB in the end (delta: 88.6 MB). Free memory was 102.0 MB in the beginning and 171.4 MB in the end (delta: -69.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,790 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.49 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 181.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 178.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,794 INFO L168 Benchmark]: Boogie Preprocessor took 38.03 ms. Allocated memory is still 203.4 MB. Free memory was 178.9 MB in the beginning and 177.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,800 INFO L168 Benchmark]: RCFGBuilder took 603.46 ms. Allocated memory is still 203.4 MB. Free memory was 177.0 MB in the beginning and 147.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,801 INFO L168 Benchmark]: TraceAbstraction took 1422.45 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 147.4 MB in the beginning and 171.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:56,815 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 463.49 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 181.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 178.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.03 ms. Allocated memory is still 203.4 MB. Free memory was 178.9 MB in the beginning and 177.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 603.46 ms. Allocated memory is still 203.4 MB. Free memory was 177.0 MB in the beginning and 147.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1422.45 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 147.4 MB in the beginning and 171.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 7.5 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 ; VAL [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_ev=0, q_free=0, q_read_ev=0, q_req_up=0, q_write_ev=0] [L456] int __retres1 ; [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 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L396] int kernel_st ; [L397] int tmp ; [L401] kernel_st = 0 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L212] COND FALSE !((int )q_req_up == 1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L227] COND TRUE (int )p_dw_i == 1 [L228] p_dw_st = 0 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L232] COND TRUE (int )c_dr_i == 1 [L233] c_dr_st = 0 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L265] COND FALSE !((int )q_read_ev == 0) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L270] COND FALSE !((int )q_write_ev == 0) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L298] int tmp ; [L299] int tmp___0 ; [L52] int __retres1 ; VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L55] COND FALSE !((int )p_dw_pc == 1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L65] __retres1 = 0 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L67] return (__retres1); VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L303] tmp = is_do_write_p_triggered() [L305] COND FALSE !(\read(tmp)) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L71] int __retres1 ; VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L74] COND FALSE !((int )c_dr_pc == 1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L84] __retres1 = 0 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L86] return (__retres1); VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L311] tmp___0 = is_do_read_c_triggered() [L313] COND FALSE !(\read(tmp___0)) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L283] COND FALSE !((int )q_read_ev == 1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L288] COND FALSE !((int )q_write_ev == 1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L409] COND TRUE 1 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L412] kernel_st = 1 [L323] int tmp ; [L324] int tmp___0 ; [L325] int tmp___1 ; VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L329] COND TRUE 1 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L242] int __retres1 ; VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L245] COND TRUE (int )p_dw_st == 0 [L246] __retres1 = 1 VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L258] return (__retres1); VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L332] tmp___1 = exists_runnable_thread() [L334] COND TRUE \read(tmp___1) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L339] COND TRUE (int )p_dw_st == 0 [L341] tmp = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp)) VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L10] __VERIFIER_error() VAL [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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 414 SDtfs, 625 SDslu, 807 SDs, 0 SdLazy, 64 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 456 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...