./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3e737313822321e0eb735a05809c2d5347ec165 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:57:36,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:57:36,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:57:36,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:57:36,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:57:36,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:57:36,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:57:36,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:57:36,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:57:36,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:57:36,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:57:36,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:57:36,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:57:36,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:57:36,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:57:36,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:57:36,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:57:36,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:57:36,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:57:36,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:57:36,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:57:36,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:57:36,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:57:36,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:57:36,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:57:36,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:57:36,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:57:36,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:57:36,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:57:36,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:57:36,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:57:36,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:57:36,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:57:36,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:57:36,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:57:36,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:57:36,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:57:36,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:57:36,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:57:36,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:57:36,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:57:36,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:57:36,624 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:57:36,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:57:36,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:57:36,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:57:36,628 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:57:36,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:57:36,629 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:57:36,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:57:36,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:57:36,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:57:36,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:57:36,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:57:36,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:57:36,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:57:36,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:57:36,632 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:57:36,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:57:36,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:57:36,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:57:36,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:57:36,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:57:36,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:57:36,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:57:36,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:57:36,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:57:36,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:57:36,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:57:36,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:57:36,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:57:36,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e737313822321e0eb735a05809c2d5347ec165 [2019-11-28 17:57:36,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:57:36,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:57:37,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:57:37,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:57:37,005 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:57:37,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-11-28 17:57:37,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e29a656/da7a25eeaeda4b0687ca6df85b7490d7/FLAG8baa8d7de [2019-11-28 17:57:37,578 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:57:37,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-11-28 17:57:37,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e29a656/da7a25eeaeda4b0687ca6df85b7490d7/FLAG8baa8d7de [2019-11-28 17:57:37,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e29a656/da7a25eeaeda4b0687ca6df85b7490d7 [2019-11-28 17:57:37,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:57:37,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:57:37,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:57:37,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:57:37,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:57:37,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:37" (1/1) ... [2019-11-28 17:57:37,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120696db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:37, skipping insertion in model container [2019-11-28 17:57:37,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:37" (1/1) ... [2019-11-28 17:57:37,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:57:37,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:57:38,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:57:38,472 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:57:38,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:57:38,596 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:57:38,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38 WrapperNode [2019-11-28 17:57:38,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:57:38,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:57:38,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:57:38,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:57:38,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:57:38,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:57:38,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:57:38,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:57:38,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (1/1) ... [2019-11-28 17:57:38,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:57:38,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:57:38,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:57:38,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:57:38,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (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 [2019-11-28 17:57:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 17:57:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 17:57:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-11-28 17:57:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-11-28 17:57:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:57:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 17:57:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:57:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:57:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-11-28 17:57:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-11-28 17:57:38,804 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 17:57:38,972 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-11-28 17:57:38,977 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-11-28 17:57:39,131 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-11-28 17:57:39,142 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:57:39,142 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 17:57:39,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:39 BoogieIcfgContainer [2019-11-28 17:57:39,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:57:39,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:57:39,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:57:39,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:57:39,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:37" (1/3) ... [2019-11-28 17:57:39,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e1aaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:39, skipping insertion in model container [2019-11-28 17:57:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:38" (2/3) ... [2019-11-28 17:57:39,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e1aaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:39, skipping insertion in model container [2019-11-28 17:57:39,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:39" (3/3) ... [2019-11-28 17:57:39,151 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-11-28 17:57:39,161 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 17:57:39,162 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:57:39,168 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:57:39,169 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 17:57:39,215 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,216 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,216 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,216 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,217 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,218 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,218 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,218 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,219 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,219 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,220 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,220 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,220 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,221 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,221 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,221 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,222 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,222 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,223 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,223 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,223 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,224 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,224 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,225 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,225 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,225 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,226 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,226 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,226 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,227 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:39,321 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-28 17:57:39,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:57:39,343 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:57:39,343 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:57:39,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:57:39,345 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:57:39,345 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:57:39,345 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:57:39,345 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:57:39,369 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-11-28 17:57:39,371 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-11-28 17:57:39,442 INFO L134 PetriNetUnfolder]: 19/130 cut-off events. [2019-11-28 17:57:39,442 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:57:39,452 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 443 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-11-28 17:57:39,459 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-11-28 17:57:39,498 INFO L134 PetriNetUnfolder]: 19/130 cut-off events. [2019-11-28 17:57:39,499 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:57:39,503 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 443 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-11-28 17:57:39,510 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-11-28 17:57:39,511 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 17:57:41,125 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-11-28 17:57:41,440 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-11-28 17:57:41,469 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-11-28 17:57:41,469 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-11-28 17:57:41,473 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-11-28 17:57:41,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-11-28 17:57:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-11-28 17:57:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:57:41,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:41,934 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:41,935 INFO L410 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:41,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-11-28 17:57:41,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:41,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291486392] [2019-11-28 17:57:41,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:42,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291486392] [2019-11-28 17:57:42,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:42,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:57:42,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255291266] [2019-11-28 17:57:42,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:57:42,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:42,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:57:42,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:57:42,257 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-11-28 17:57:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:42,623 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-11-28 17:57:42,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:57:42,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 17:57:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:42,755 INFO L225 Difference]: With dead ends: 9727 [2019-11-28 17:57:42,756 INFO L226 Difference]: Without dead ends: 7325 [2019-11-28 17:57:42,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-11-28 17:57:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-11-28 17:57:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-11-28 17:57:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-11-28 17:57:43,119 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-11-28 17:57:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:43,120 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-11-28 17:57:43,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:57:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-11-28 17:57:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:57:43,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:43,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:43,127 INFO L410 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-11-28 17:57:43,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:43,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474331843] [2019-11-28 17:57:43,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:43,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474331843] [2019-11-28 17:57:43,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:43,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:57:43,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451598066] [2019-11-28 17:57:43,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:57:43,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:43,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:57:43,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:57:43,258 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-11-28 17:57:43,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:43,393 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-11-28 17:57:43,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:57:43,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 17:57:43,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:43,454 INFO L225 Difference]: With dead ends: 6872 [2019-11-28 17:57:43,455 INFO L226 Difference]: Without dead ends: 6776 [2019-11-28 17:57:43,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:57:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-11-28 17:57:43,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-11-28 17:57:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-11-28 17:57:43,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-11-28 17:57:43,668 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-11-28 17:57:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:43,669 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-11-28 17:57:43,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:57:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-11-28 17:57:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:57:43,671 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:43,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:43,672 INFO L410 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:43,672 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-11-28 17:57:43,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:43,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406690654] [2019-11-28 17:57:43,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:43,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406690654] [2019-11-28 17:57:43,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:43,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:57:43,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861040731] [2019-11-28 17:57:43,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:57:43,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:43,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:57:43,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:43,730 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-11-28 17:57:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:43,767 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-11-28 17:57:43,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:57:43,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 17:57:43,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:43,798 INFO L225 Difference]: With dead ends: 2244 [2019-11-28 17:57:43,799 INFO L226 Difference]: Without dead ends: 2180 [2019-11-28 17:57:43,799 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 [2019-11-28 17:57:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-11-28 17:57:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-11-28 17:57:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-11-28 17:57:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-11-28 17:57:43,900 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-11-28 17:57:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:43,901 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-11-28 17:57:43,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:57:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-11-28 17:57:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 17:57:43,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:43,909 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:43,909 INFO L410 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:43,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:43,910 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-11-28 17:57:43,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:43,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158398509] [2019-11-28 17:57:43,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:44,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158398509] [2019-11-28 17:57:44,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:44,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:57:44,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456560235] [2019-11-28 17:57:44,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:57:44,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:44,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:57:44,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:57:44,006 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-11-28 17:57:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:44,146 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-11-28 17:57:44,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:57:44,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 17:57:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:44,153 INFO L225 Difference]: With dead ends: 2507 [2019-11-28 17:57:44,154 INFO L226 Difference]: Without dead ends: 1814 [2019-11-28 17:57:44,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-11-28 17:57:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-11-28 17:57:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-11-28 17:57:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-11-28 17:57:44,205 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-11-28 17:57:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:44,206 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-11-28 17:57:44,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:57:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-11-28 17:57:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:57:44,210 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:44,210 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:44,210 INFO L410 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:44,211 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-11-28 17:57:44,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:44,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135390470] [2019-11-28 17:57:44,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:44,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135390470] [2019-11-28 17:57:44,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:44,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:57:44,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978608557] [2019-11-28 17:57:44,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:57:44,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:44,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:57:44,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:44,327 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-11-28 17:57:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:44,379 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-11-28 17:57:44,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:57:44,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-28 17:57:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:44,385 INFO L225 Difference]: With dead ends: 1734 [2019-11-28 17:57:44,385 INFO L226 Difference]: Without dead ends: 1508 [2019-11-28 17:57:44,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-11-28 17:57:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-11-28 17:57:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-11-28 17:57:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-11-28 17:57:44,450 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-11-28 17:57:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:44,451 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-11-28 17:57:44,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:57:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-11-28 17:57:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:57:44,454 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:44,454 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:44,454 INFO L410 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-11-28 17:57:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:44,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-11-28 17:57:44,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:44,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379304517] [2019-11-28 17:57:44,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:44,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379304517] [2019-11-28 17:57:44,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:44,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:57:44,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146655943] [2019-11-28 17:57:44,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:57:44,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:44,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:57:44,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:44,615 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-11-28 17:57:44,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:44,658 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-11-28 17:57:44,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:57:44,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-28 17:57:44,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:44,659 INFO L225 Difference]: With dead ends: 530 [2019-11-28 17:57:44,659 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:57:44,660 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:57:44,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:57:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:57:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:57:44,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-28 17:57:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:44,662 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:57:44,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:57:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:57:44,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:57:44,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:57:44 BasicIcfg [2019-11-28 17:57:44,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:57:44,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:57:44,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:57:44,668 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:57:44,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:39" (3/4) ... [2019-11-28 17:57:44,674 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:57:44,684 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2019-11-28 17:57:44,684 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2019-11-28 17:57:44,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-11-28 17:57:44,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 17:57:44,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:57:44,749 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:57:44,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:57:44,751 INFO L168 Benchmark]: Toolchain (without parser) took 6871.04 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 341.8 MB). Free memory was 955.0 MB in the beginning and 1.3 GB in the end (delta: -349.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,751 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:44,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,753 INFO L168 Benchmark]: Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,753 INFO L168 Benchmark]: RCFGBuilder took 417.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:44,754 INFO L168 Benchmark]: TraceAbstraction took 5523.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -224.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,754 INFO L168 Benchmark]: Witness Printer took 81.07 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:44,757 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 717.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 417.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5523.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -224.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 81.07 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 95 ProgramPointsBefore, 55 ProgramPointsAfterwards, 96 TransitionsBefore, 55 TransitionsAfterwards, 2072 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 729 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 28 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 6304 CheckedPairsTotal, 41 TotalNumberOfCompositions - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 420 SDslu, 511 SDs, 0 SdLazy, 135 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4772occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 5459 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! Received shutdown request...