./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix038_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-wmm/mix038_pso.opt.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28e66627e13bcfee3a706df7801c88011196dd26 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:14:48,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:14:48,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:14:48,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:14:48,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:14:48,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:14:48,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:14:48,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:14:48,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:14:48,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:14:48,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:14:48,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:14:48,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:14:48,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:14:48,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:14:48,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:14:48,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:14:48,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:14:48,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:14:48,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:14:48,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:14:48,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:14:48,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:14:48,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:14:48,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:14:48,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:14:48,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:14:48,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:14:48,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:14:48,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:14:48,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:14:48,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:14:48,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:14:48,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:14:48,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:14:48,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:14:48,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:14:48,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:14:48,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:14:48,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:14:48,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:14:48,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:14:48,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:14:48,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:14:48,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:14:48,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:14:48,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:14:48,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:14:48,475 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:14:48,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:14:48,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:14:48,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:14:48,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:14:48,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:14:48,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:14:48,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:14:48,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:14:48,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:14:48,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:14:48,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:14:48,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:14:48,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:14:48,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:14:48,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:14:48,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:14:48,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:14:48,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:14:48,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28e66627e13bcfee3a706df7801c88011196dd26 [2021-08-29 22:14:48,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:14:48,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:14:48,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:14:48,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:14:48,957 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:14:48,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix038_pso.opt.i [2021-08-29 22:14:49,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a407faca/1d51d615ee834188b37c3fc9ddf11c3e/FLAGe7c9e0550 [2021-08-29 22:14:49,523 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:14:49,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038_pso.opt.i [2021-08-29 22:14:49,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a407faca/1d51d615ee834188b37c3fc9ddf11c3e/FLAGe7c9e0550 [2021-08-29 22:14:50,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a407faca/1d51d615ee834188b37c3fc9ddf11c3e [2021-08-29 22:14:50,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:14:50,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:14:50,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:14:50,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:14:50,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:14:50,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539c1598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50, skipping insertion in model container [2021-08-29 22:14:50,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:14:50,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:14:50,249 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038_pso.opt.i[948,961] [2021-08-29 22:14:50,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:14:50,494 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:14:50,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038_pso.opt.i[948,961] [2021-08-29 22:14:50,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:14:50,600 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:14:50,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50 WrapperNode [2021-08-29 22:14:50,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:14:50,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:14:50,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:14:50,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:14:50,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:14:50,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:14:50,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:14:50,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:14:50,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:14:50,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:14:50,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:14:50,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:14:50,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (1/1) ... [2021-08-29 22:14:50,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:14:50,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:14:50,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 22:14:50,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 22:14:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:14:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:14:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:14:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:14:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:14:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:14:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:14:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:14:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:14:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:14:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:14:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:14:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:14:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:14:50,806 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:14:51,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:14:51,349 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 22:14:51,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:14:51 BoogieIcfgContainer [2021-08-29 22:14:51,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:14:51,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:14:51,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:14:51,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:14:51,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:14:50" (1/3) ... [2021-08-29 22:14:51,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:14:51, skipping insertion in model container [2021-08-29 22:14:51,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:14:50" (2/3) ... [2021-08-29 22:14:51,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:14:51, skipping insertion in model container [2021-08-29 22:14:51,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:14:51" (3/3) ... [2021-08-29 22:14:51,359 INFO L111 eAbstractionObserver]: Analyzing ICFG mix038_pso.opt.i [2021-08-29 22:14:51,363 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:14:51,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:14:51,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-29 22:14:51,363 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:14:51,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,403 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,411 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,413 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,415 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,433 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,439 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,439 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,443 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,444 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,445 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,455 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,458 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,458 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,459 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:14:51,461 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:14:51,508 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:14:51,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 22:14:51,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-29 22:14:51,531 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:14:51,548 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 109 transitions, 233 flow [2021-08-29 22:14:51,550 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 109 transitions, 233 flow [2021-08-29 22:14:51,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 109 transitions, 233 flow [2021-08-29 22:14:51,616 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2021-08-29 22:14:51,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:14:51,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 106 events. 2/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-08-29 22:14:51,626 INFO L116 LiptonReduction]: Number of co-enabled transitions 1796 [2021-08-29 22:14:56,435 INFO L131 LiptonReduction]: Checked pairs total: 3969 [2021-08-29 22:14:56,435 INFO L133 LiptonReduction]: Total number of compositions: 94 [2021-08-29 22:14:56,444 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 27 transitions, 69 flow [2021-08-29 22:14:56,494 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 22:14:56,503 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:56,504 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:56,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1026352792, now seen corresponding path program 1 times [2021-08-29 22:14:56,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:56,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807272910] [2021-08-29 22:14:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:56,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:56,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:56,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807272910] [2021-08-29 22:14:56,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807272910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:56,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:56,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:14:56,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523724626] [2021-08-29 22:14:56,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:14:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:14:56,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:14:56,812 INFO L87 Difference]: Start difference. First operand has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:56,866 INFO L93 Difference]: Finished difference Result 538 states and 1640 transitions. [2021-08-29 22:14:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:14:56,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 22:14:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:56,884 INFO L225 Difference]: With dead ends: 538 [2021-08-29 22:14:56,884 INFO L226 Difference]: Without dead ends: 522 [2021-08-29 22:14:56,885 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:14:56,888 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.67ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:56,889 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 23.67ms Time] [2021-08-29 22:14:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-08-29 22:14:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2021-08-29 22:14:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 3.071017274472169) internal successors, (1600), 521 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1600 transitions. [2021-08-29 22:14:56,989 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1600 transitions. Word has length 7 [2021-08-29 22:14:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:56,989 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 1600 transitions. [2021-08-29 22:14:56,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1600 transitions. [2021-08-29 22:14:56,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 22:14:56,991 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:56,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:56,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:14:56,992 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:56,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:56,992 INFO L82 PathProgramCache]: Analyzing trace with hash 206014901, now seen corresponding path program 1 times [2021-08-29 22:14:56,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:56,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832738799] [2021-08-29 22:14:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:56,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:57,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:57,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832738799] [2021-08-29 22:14:57,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832738799] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:57,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:57,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:14:57,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022279291] [2021-08-29 22:14:57,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:14:57,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:14:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:14:57,128 INFO L87 Difference]: Start difference. First operand 522 states and 1600 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:57,192 INFO L93 Difference]: Finished difference Result 554 states and 1632 transitions. [2021-08-29 22:14:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:14:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 22:14:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:57,198 INFO L225 Difference]: With dead ends: 554 [2021-08-29 22:14:57,198 INFO L226 Difference]: Without dead ends: 458 [2021-08-29 22:14:57,198 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:14:57,199 INFO L928 BasicCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.82ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:57,200 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 45 Invalid, 32 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 39.82ms Time] [2021-08-29 22:14:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-08-29 22:14:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2021-08-29 22:14:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 3.010940919037199) internal successors, (1376), 457 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1376 transitions. [2021-08-29 22:14:57,222 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1376 transitions. Word has length 10 [2021-08-29 22:14:57,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:57,222 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 1376 transitions. [2021-08-29 22:14:57,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1376 transitions. [2021-08-29 22:14:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:14:57,224 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:57,224 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:57,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:14:57,225 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:57,225 INFO L82 PathProgramCache]: Analyzing trace with hash -898138243, now seen corresponding path program 1 times [2021-08-29 22:14:57,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:57,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252577904] [2021-08-29 22:14:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:57,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:57,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:57,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252577904] [2021-08-29 22:14:57,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252577904] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:57,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:57,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:14:57,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827213976] [2021-08-29 22:14:57,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:14:57,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:14:57,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:14:57,358 INFO L87 Difference]: Start difference. First operand 458 states and 1376 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:57,475 INFO L93 Difference]: Finished difference Result 728 states and 2059 transitions. [2021-08-29 22:14:57,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:14:57,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 22:14:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:57,480 INFO L225 Difference]: With dead ends: 728 [2021-08-29 22:14:57,480 INFO L226 Difference]: Without dead ends: 598 [2021-08-29 22:14:57,480 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.52ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:14:57,483 INFO L928 BasicCegarLoop]: 21 mSDtfsCounter, 42 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.77ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:57,485 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 72 Invalid, 65 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 82.77ms Time] [2021-08-29 22:14:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-08-29 22:14:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 502. [2021-08-29 22:14:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 501 states have (on average 2.934131736526946) internal successors, (1470), 501 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 1470 transitions. [2021-08-29 22:14:57,505 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 1470 transitions. Word has length 12 [2021-08-29 22:14:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:57,506 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 1470 transitions. [2021-08-29 22:14:57,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,506 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 1470 transitions. [2021-08-29 22:14:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:14:57,510 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:57,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:57,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:14:57,510 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:57,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:57,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1247025561, now seen corresponding path program 1 times [2021-08-29 22:14:57,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:57,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334354952] [2021-08-29 22:14:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:57,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:57,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:57,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334354952] [2021-08-29 22:14:57,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334354952] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:57,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:57,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:14:57,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961533916] [2021-08-29 22:14:57,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:14:57,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:14:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:14:57,627 INFO L87 Difference]: Start difference. First operand 502 states and 1470 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:57,698 INFO L93 Difference]: Finished difference Result 472 states and 1204 transitions. [2021-08-29 22:14:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:14:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-29 22:14:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:57,700 INFO L225 Difference]: With dead ends: 472 [2021-08-29 22:14:57,701 INFO L226 Difference]: Without dead ends: 356 [2021-08-29 22:14:57,703 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:14:57,708 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.64ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:57,709 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 36 Invalid, 50 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 56.64ms Time] [2021-08-29 22:14:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-08-29 22:14:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-08-29 22:14:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 2.507042253521127) internal successors, (890), 355 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 890 transitions. [2021-08-29 22:14:57,720 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 890 transitions. Word has length 13 [2021-08-29 22:14:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:57,721 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 890 transitions. [2021-08-29 22:14:57,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 890 transitions. [2021-08-29 22:14:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:14:57,722 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:57,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:57,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:14:57,722 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1303177409, now seen corresponding path program 1 times [2021-08-29 22:14:57,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:57,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885419020] [2021-08-29 22:14:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:57,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:57,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:57,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885419020] [2021-08-29 22:14:57,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885419020] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:57,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:57,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:14:57,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142153127] [2021-08-29 22:14:57,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:14:57,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:14:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:14:57,812 INFO L87 Difference]: Start difference. First operand 356 states and 890 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:57,876 INFO L93 Difference]: Finished difference Result 508 states and 1222 transitions. [2021-08-29 22:14:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:14:57,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 22:14:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:57,879 INFO L225 Difference]: With dead ends: 508 [2021-08-29 22:14:57,879 INFO L226 Difference]: Without dead ends: 342 [2021-08-29 22:14:57,879 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:14:57,880 INFO L928 BasicCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.88ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:57,880 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 59 Invalid, 46 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 46.88ms Time] [2021-08-29 22:14:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-08-29 22:14:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 300. [2021-08-29 22:14:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 2.408026755852843) internal successors, (720), 299 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 720 transitions. [2021-08-29 22:14:57,888 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 720 transitions. Word has length 15 [2021-08-29 22:14:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:57,888 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 720 transitions. [2021-08-29 22:14:57,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 720 transitions. [2021-08-29 22:14:57,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:14:57,889 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:57,889 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:57,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:14:57,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:57,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:57,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1629923143, now seen corresponding path program 1 times [2021-08-29 22:14:57,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:57,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741725592] [2021-08-29 22:14:57,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:57,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:57,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:57,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741725592] [2021-08-29 22:14:57,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741725592] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:57,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:57,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:14:57,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539677445] [2021-08-29 22:14:57,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:14:57,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:14:57,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:14:57,993 INFO L87 Difference]: Start difference. First operand 300 states and 720 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:58,070 INFO L93 Difference]: Finished difference Result 231 states and 494 transitions. [2021-08-29 22:14:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:14:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 22:14:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:58,072 INFO L225 Difference]: With dead ends: 231 [2021-08-29 22:14:58,072 INFO L226 Difference]: Without dead ends: 180 [2021-08-29 22:14:58,073 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.60ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:14:58,073 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.26ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.31ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:58,074 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 48 Invalid, 68 Unknown, 0 Unchecked, 2.26ms Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 65.31ms Time] [2021-08-29 22:14:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-29 22:14:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-08-29 22:14:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.089385474860335) internal successors, (374), 179 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 374 transitions. [2021-08-29 22:14:58,088 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 374 transitions. Word has length 15 [2021-08-29 22:14:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:58,088 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 374 transitions. [2021-08-29 22:14:58,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 374 transitions. [2021-08-29 22:14:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 22:14:58,089 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:58,089 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:58,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:14:58,090 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:58,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:58,090 INFO L82 PathProgramCache]: Analyzing trace with hash 706384311, now seen corresponding path program 1 times [2021-08-29 22:14:58,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:58,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818491218] [2021-08-29 22:14:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:58,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:58,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:58,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818491218] [2021-08-29 22:14:58,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818491218] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:58,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:58,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:14:58,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461180909] [2021-08-29 22:14:58,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:14:58,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:14:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:14:58,197 INFO L87 Difference]: Start difference. First operand 180 states and 374 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:58,270 INFO L93 Difference]: Finished difference Result 154 states and 321 transitions. [2021-08-29 22:14:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:14:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 22:14:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:58,272 INFO L225 Difference]: With dead ends: 154 [2021-08-29 22:14:58,272 INFO L226 Difference]: Without dead ends: 94 [2021-08-29 22:14:58,273 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.19ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:14:58,273 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.69ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.44ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:58,274 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 45 Invalid, 71 Unknown, 0 Unchecked, 0.69ms Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 60.44ms Time] [2021-08-29 22:14:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-08-29 22:14:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-08-29 22:14:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 2.0) internal successors, (186), 93 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 186 transitions. [2021-08-29 22:14:58,277 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 186 transitions. Word has length 18 [2021-08-29 22:14:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:58,277 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 186 transitions. [2021-08-29 22:14:58,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 186 transitions. [2021-08-29 22:14:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 22:14:58,278 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:58,278 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:58,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 22:14:58,278 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:58,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1993634912, now seen corresponding path program 1 times [2021-08-29 22:14:58,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:58,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574567077] [2021-08-29 22:14:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:58,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:58,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:58,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574567077] [2021-08-29 22:14:58,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574567077] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:58,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:58,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 22:14:58,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132341749] [2021-08-29 22:14:58,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 22:14:58,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:58,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 22:14:58,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:14:58,444 INFO L87 Difference]: Start difference. First operand 94 states and 186 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:58,575 INFO L93 Difference]: Finished difference Result 144 states and 285 transitions. [2021-08-29 22:14:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 22:14:58,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 22:14:58,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:58,576 INFO L225 Difference]: With dead ends: 144 [2021-08-29 22:14:58,576 INFO L226 Difference]: Without dead ends: 97 [2021-08-29 22:14:58,577 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 58.85ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-29 22:14:58,577 INFO L928 BasicCegarLoop]: 23 mSDtfsCounter, 40 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.98ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:58,577 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 81 Invalid, 87 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [11 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 89.98ms Time] [2021-08-29 22:14:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-08-29 22:14:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 74. [2021-08-29 22:14:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 73 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 136 transitions. [2021-08-29 22:14:58,580 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 136 transitions. Word has length 21 [2021-08-29 22:14:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:58,580 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 136 transitions. [2021-08-29 22:14:58,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 136 transitions. [2021-08-29 22:14:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 22:14:58,581 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:58,581 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:58,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 22:14:58,581 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:58,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:58,582 INFO L82 PathProgramCache]: Analyzing trace with hash -691125514, now seen corresponding path program 2 times [2021-08-29 22:14:58,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:58,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299304248] [2021-08-29 22:14:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:58,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:58,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:58,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299304248] [2021-08-29 22:14:58,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299304248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:58,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:58,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 22:14:58,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308429294] [2021-08-29 22:14:58,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 22:14:58,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:58,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 22:14:58,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:14:58,747 INFO L87 Difference]: Start difference. First operand 74 states and 136 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:58,891 INFO L93 Difference]: Finished difference Result 138 states and 253 transitions. [2021-08-29 22:14:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-29 22:14:58,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 22:14:58,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:58,892 INFO L225 Difference]: With dead ends: 138 [2021-08-29 22:14:58,892 INFO L226 Difference]: Without dead ends: 64 [2021-08-29 22:14:58,893 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 83.71ms TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-08-29 22:14:58,893 INFO L928 BasicCegarLoop]: 24 mSDtfsCounter, 54 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.00ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:58,893 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 112 Invalid, 118 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 80.00ms Time] [2021-08-29 22:14:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-29 22:14:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2021-08-29 22:14:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.75) internal successors, (91), 52 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 91 transitions. [2021-08-29 22:14:58,895 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 91 transitions. Word has length 21 [2021-08-29 22:14:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:58,896 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 91 transitions. [2021-08-29 22:14:58,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 91 transitions. [2021-08-29 22:14:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 22:14:58,896 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:58,896 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:58,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 22:14:58,896 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:58,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1688958492, now seen corresponding path program 3 times [2021-08-29 22:14:58,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:58,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274919312] [2021-08-29 22:14:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:58,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:58,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:58,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274919312] [2021-08-29 22:14:58,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274919312] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:58,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:58,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:14:58,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242316847] [2021-08-29 22:14:58,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:14:58,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:14:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:14:58,988 INFO L87 Difference]: Start difference. First operand 53 states and 91 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:59,050 INFO L93 Difference]: Finished difference Result 85 states and 150 transitions. [2021-08-29 22:14:59,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:14:59,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 22:14:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:59,051 INFO L225 Difference]: With dead ends: 85 [2021-08-29 22:14:59,051 INFO L226 Difference]: Without dead ends: 43 [2021-08-29 22:14:59,051 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.18ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-08-29 22:14:59,052 INFO L928 BasicCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.54ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.61ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:59,052 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 61 Invalid, 54 Unknown, 0 Unchecked, 0.54ms Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 40.61ms Time] [2021-08-29 22:14:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-29 22:14:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-08-29 22:14:59,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 42 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 69 transitions. [2021-08-29 22:14:59,054 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 69 transitions. Word has length 21 [2021-08-29 22:14:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:59,055 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 69 transitions. [2021-08-29 22:14:59,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 69 transitions. [2021-08-29 22:14:59,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 22:14:59,055 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:59,055 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:59,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 22:14:59,056 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:59,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:59,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1980734578, now seen corresponding path program 4 times [2021-08-29 22:14:59,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:59,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835894996] [2021-08-29 22:14:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:59,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:14:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:14:59,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:14:59,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835894996] [2021-08-29 22:14:59,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835894996] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:14:59,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:14:59,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:14:59,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770568840] [2021-08-29 22:14:59,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 22:14:59,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:14:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 22:14:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:14:59,186 INFO L87 Difference]: Start difference. First operand 43 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:14:59,286 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2021-08-29 22:14:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 22:14:59,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 22:14:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:14:59,287 INFO L225 Difference]: With dead ends: 54 [2021-08-29 22:14:59,287 INFO L226 Difference]: Without dead ends: 31 [2021-08-29 22:14:59,287 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.96ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-08-29 22:14:59,288 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 42 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.00ms IncrementalHoareTripleChecker+Time [2021-08-29 22:14:59,288 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 58 Invalid, 66 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 50.00ms Time] [2021-08-29 22:14:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-29 22:14:59,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-08-29 22:14:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-08-29 22:14:59,289 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 21 [2021-08-29 22:14:59,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:14:59,289 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-08-29 22:14:59,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:14:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-08-29 22:14:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 22:14:59,290 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:14:59,290 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:14:59,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 22:14:59,290 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-08-29 22:14:59,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:14:59,290 INFO L82 PathProgramCache]: Analyzing trace with hash -623147780, now seen corresponding path program 5 times [2021-08-29 22:14:59,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:14:59,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675234917] [2021-08-29 22:14:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:14:59,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:14:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:14:59,321 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 22:14:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 22:14:59,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 22:14:59,396 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 22:14:59,397 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-08-29 22:14:59,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-08-29 22:14:59,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-08-29 22:14:59,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-08-29 22:14:59,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-08-29 22:14:59,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-08-29 22:14:59,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 22:14:59,405 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:14:59,405 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:14:59,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:14:59 BasicIcfg [2021-08-29 22:14:59,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:14:59,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:14:59,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:14:59,507 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:14:59,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:14:51" (3/4) ... [2021-08-29 22:14:59,509 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 22:14:59,605 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:14:59,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:14:59,606 INFO L158 Benchmark]: Toolchain (without parser) took 9595.50ms. Allocated memory was 52.4MB in the beginning and 134.2MB in the end (delta: 81.8MB). Free memory was 28.0MB in the beginning and 97.2MB in the end (delta: -69.2MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,606 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.8MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:14:59,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.89ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.8MB in the beginning and 34.0MB in the end (delta: -6.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.98ms. Allocated memory is still 62.9MB. Free memory was 33.8MB in the beginning and 31.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,607 INFO L158 Benchmark]: Boogie Preprocessor took 52.56ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 29.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,608 INFO L158 Benchmark]: RCFGBuilder took 622.07ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 28.1MB in the end (delta: 1.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,608 INFO L158 Benchmark]: TraceAbstraction took 8153.63ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 27.8MB in the beginning and 45.3MB in the end (delta: -17.5MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,609 INFO L158 Benchmark]: Witness Printer took 98.41ms. Allocated memory is still 134.2MB. Free memory was 44.2MB in the beginning and 97.2MB in the end (delta: -53.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-08-29 22:14:59,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.8MB in the beginning and 34.8MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.89ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.8MB in the beginning and 34.0MB in the end (delta: -6.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.98ms. Allocated memory is still 62.9MB. Free memory was 33.8MB in the beginning and 31.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.56ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 29.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.07ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 28.1MB in the end (delta: 1.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8153.63ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 27.8MB in the beginning and 45.3MB in the end (delta: -17.5MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 98.41ms. Allocated memory is still 134.2MB. Free memory was 44.2MB in the beginning and 97.2MB in the end (delta: -53.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4884.98ms, 117 PlacesBefore, 36 PlacesAfterwards, 109 TransitionsBefore, 27 TransitionsAfterwards, 1796 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 3969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2005, positive: 1873, positive conditional: 0, positive unconditional: 1873, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1184, positive: 1148, positive conditional: 0, positive unconditional: 1148, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1184, positive: 1134, positive conditional: 0, positive unconditional: 1134, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 177, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2005, positive: 725, positive conditional: 0, positive unconditional: 725, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 1184, unknown conditional: 0, unknown unconditional: 1184] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L717] 0 int a = 0; [L718] 0 _Bool main$tmp_guard0; [L719] 0 _Bool main$tmp_guard1; [L721] 0 int x = 0; [L723] 0 int y = 0; [L724] 0 _Bool y$flush_delayed; [L725] 0 int y$mem_tmp; [L726] 0 _Bool y$r_buff0_thd0; [L727] 0 _Bool y$r_buff0_thd1; [L728] 0 _Bool y$r_buff0_thd2; [L729] 0 _Bool y$r_buff0_thd3; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$read_delayed; [L735] 0 int *y$read_delayed_var; [L736] 0 int y$w_buff0; [L737] 0 _Bool y$w_buff0_used; [L738] 0 int y$w_buff1; [L739] 0 _Bool y$w_buff1_used; [L741] 0 int z = 0; [L742] 0 _Bool weak$$choice0; [L743] 0 _Bool weak$$choice2; [L833] 0 pthread_t t1010; [L834] FCALL, FORK 0 pthread_create(&t1010, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L835] 0 pthread_t t1011; [L836] FCALL, FORK 0 pthread_create(&t1011, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L837] 0 pthread_t t1012; [L838] FCALL, FORK 0 pthread_create(&t1012, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L790] 3 y$w_buff1 = y$w_buff0 [L791] 3 y$w_buff0 = 1 [L792] 3 y$w_buff1_used = y$w_buff0_used [L793] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L795] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L796] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L797] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L798] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L799] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 3 z = 1 [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L747] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L750] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L755] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L757] 1 return 0; [L762] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L765] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L766] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L767] 2 y$flush_delayed = weak$$choice2 [L768] 2 y$mem_tmp = y [L769] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L769] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L770] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L770] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L770] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L770] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L771] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L771] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L771] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L771] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L772] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L772] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L772] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L772] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L773] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L773] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L773] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L773] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L774] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L774] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L774] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L775] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L775] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 __unbuffered_p1_EAX = y [L777] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L777] 2 y = y$flush_delayed ? y$mem_tmp : y [L778] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L811] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L811] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L812] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L813] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L813] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L814] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L814] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L815] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L815] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L820] 3 return 0; [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L844] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L844] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L844] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L844] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L845] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L846] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L846] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L847] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L847] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L848] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L848] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L851] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7896.95ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 19.49ms, AutomataDifference: 1065.32ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 4978.09ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 636.12ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 638 SdHoareTripleChecker+Invalid, 513.55ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 667 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 611 IncrementalHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 201 mSDtfsCounter, 611 mSolverCounterSat, 14.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 333.88ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 165.52ms AutomataMinimizationTime, 11 MinimizatonAttempts, 172 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.70ms SsaConstructionTime, 511.52ms SatisfiabilityAnalysisTime, 782.42ms InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-29 22:14:59,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...