./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe022_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/safe022_rmo.oepc.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 ee14dccbc7df3a547a9dae0cac27340b6cb5e6e6 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-dev-20ed64e [2021-08-26 14:40:23,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 14:40:23,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 14:40:23,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 14:40:23,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 14:40:23,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 14:40:23,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 14:40:23,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 14:40:23,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 14:40:23,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 14:40:23,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 14:40:23,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 14:40:23,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 14:40:23,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 14:40:23,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 14:40:23,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 14:40:23,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 14:40:23,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 14:40:23,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 14:40:23,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 14:40:23,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 14:40:23,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 14:40:23,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 14:40:23,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 14:40:23,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 14:40:23,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 14:40:23,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 14:40:23,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 14:40:23,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 14:40:23,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 14:40:23,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 14:40:23,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 14:40:23,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 14:40:23,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 14:40:23,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 14:40:23,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 14:40:23,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 14:40:23,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 14:40:23,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 14:40:23,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 14:40:23,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 14:40:23,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 14:40:23,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 14:40:23,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 14:40:23,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 14:40:23,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 14:40:23,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 14:40:23,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 14:40:23,576 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 14:40:23,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 14:40:23,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 14:40:23,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 14:40:23,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 14:40:23,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 14:40:23,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 14:40:23,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 14:40:23,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 14:40:23,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 14:40:23,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 14:40:23,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 14:40:23,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 14:40:23,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 14:40:23,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 14:40:23,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 14:40:23,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:40:23,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 14:40:23,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 14:40:23,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee14dccbc7df3a547a9dae0cac27340b6cb5e6e6 [2021-08-26 14:40:23,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 14:40:23,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 14:40:23,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 14:40:23,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 14:40:23,929 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 14:40:23,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe022_rmo.oepc.i [2021-08-26 14:40:24,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0df11ea4/a2f4d61f6bc34e9298c88c49084a529e/FLAG78a8c0618 [2021-08-26 14:40:24,563 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 14:40:24,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe022_rmo.oepc.i [2021-08-26 14:40:24,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0df11ea4/a2f4d61f6bc34e9298c88c49084a529e/FLAG78a8c0618 [2021-08-26 14:40:24,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0df11ea4/a2f4d61f6bc34e9298c88c49084a529e [2021-08-26 14:40:24,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 14:40:25,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 14:40:25,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 14:40:25,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 14:40:25,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 14:40:25,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:40:24" (1/1) ... [2021-08-26 14:40:25,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195b3662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25, skipping insertion in model container [2021-08-26 14:40:25,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:40:24" (1/1) ... [2021-08-26 14:40:25,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 14:40:25,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 14:40:25,257 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/safe022_rmo.oepc.i[950,963] [2021-08-26 14:40:25,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:40:25,468 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 14:40:25,478 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/safe022_rmo.oepc.i[950,963] [2021-08-26 14:40:25,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 14:40:25,576 INFO L208 MainTranslator]: Completed translation [2021-08-26 14:40:25,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25 WrapperNode [2021-08-26 14:40:25,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 14:40:25,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 14:40:25,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 14:40:25,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 14:40:25,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 14:40:25,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 14:40:25,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 14:40:25,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 14:40:25,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 14:40:25,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 14:40:25,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 14:40:25,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 14:40:25,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (1/1) ... [2021-08-26 14:40:25,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 14:40:25,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 14:40:25,713 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) [2021-08-26 14:40:25,715 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 [2021-08-26 14:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 14:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-26 14:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 14:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 14:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-26 14:40:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-26 14:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-26 14:40:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-26 14:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 14:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-26 14:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 14:40:25,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 14:40:25,750 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-26 14:40:27,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 14:40:27,567 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-26 14:40:27,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:40:27 BoogieIcfgContainer [2021-08-26 14:40:27,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 14:40:27,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 14:40:27,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 14:40:27,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 14:40:27,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:40:24" (1/3) ... [2021-08-26 14:40:27,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcb4340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:40:27, skipping insertion in model container [2021-08-26 14:40:27,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:40:25" (2/3) ... [2021-08-26 14:40:27,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcb4340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:40:27, skipping insertion in model container [2021-08-26 14:40:27,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:40:27" (3/3) ... [2021-08-26 14:40:27,577 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_rmo.oepc.i [2021-08-26 14:40:27,582 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-26 14:40:27,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 14:40:27,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 14:40:27,583 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-26 14:40:27,625 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,625 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,677 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 14:40:27,682 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-26 14:40:27,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 14:40:27,734 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 [2021-08-26 14:40:27,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-26 14:40:27,763 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-26 14:40:27,771 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 87 transitions, 184 flow [2021-08-26 14:40:27,772 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 87 transitions, 184 flow [2021-08-26 14:40:27,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 87 transitions, 184 flow [2021-08-26 14:40:27,801 INFO L129 PetriNetUnfolder]: 2/85 cut-off events. [2021-08-26 14:40:27,801 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-26 14:40:27,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 85 events. 2/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2021-08-26 14:40:27,806 INFO L116 LiptonReduction]: Number of co-enabled transitions 1004 [2021-08-26 14:40:32,715 INFO L131 LiptonReduction]: Checked pairs total: 2671 [2021-08-26 14:40:32,716 INFO L133 LiptonReduction]: Total number of compositions: 77 [2021-08-26 14:40:32,726 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2021-08-26 14:40:32,757 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 174 states, 171 states have (on average 2.584795321637427) internal successors, (442), 173 states have internal predecessors, (442), 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) [2021-08-26 14:40:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 171 states have (on average 2.584795321637427) internal successors, (442), 173 states have internal predecessors, (442), 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) [2021-08-26 14:40:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-08-26 14:40:32,768 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:32,768 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-08-26 14:40:32,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash 934883, now seen corresponding path program 1 times [2021-08-26 14:40:32,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:32,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737824103] [2021-08-26 14:40:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:32,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737824103] [2021-08-26 14:40:33,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737824103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-26 14:40:33,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670335338] [2021-08-26 14:40:33,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 14:40:33,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 14:40:33,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:40:33,042 INFO L87 Difference]: Start difference. First operand has 174 states, 171 states have (on average 2.584795321637427) internal successors, (442), 173 states have internal predecessors, (442), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-26 14:40:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:33,095 INFO L93 Difference]: Finished difference Result 142 states and 329 transitions. [2021-08-26 14:40:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 14:40:33,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-08-26 14:40:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:33,113 INFO L225 Difference]: With dead ends: 142 [2021-08-26 14:40:33,114 INFO L226 Difference]: Without dead ends: 137 [2021-08-26 14:40:33,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 14:40:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-26 14:40:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-26 14:40:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 2.3529411764705883) internal successors, (320), 136 states have internal predecessors, (320), 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) [2021-08-26 14:40:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2021-08-26 14:40:33,182 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 3 [2021-08-26 14:40:33,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:33,183 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2021-08-26 14:40:33,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-26 14:40:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2021-08-26 14:40:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 14:40:33,184 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:33,184 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:33,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 14:40:33,185 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 616132284, now seen corresponding path program 1 times [2021-08-26 14:40:33,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:33,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416518016] [2021-08-26 14:40:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:33,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416518016] [2021-08-26 14:40:33,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416518016] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 14:40:33,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154883584] [2021-08-26 14:40:33,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 14:40:33,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 14:40:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 14:40:33,324 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-26 14:40:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:33,346 INFO L93 Difference]: Finished difference Result 152 states and 337 transitions. [2021-08-26 14:40:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 14:40:33,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-08-26 14:40:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:33,348 INFO L225 Difference]: With dead ends: 152 [2021-08-26 14:40:33,348 INFO L226 Difference]: Without dead ends: 127 [2021-08-26 14:40:33,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:40:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-26 14:40:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-08-26 14:40:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 2.3174603174603177) internal successors, (292), 126 states have internal predecessors, (292), 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) [2021-08-26 14:40:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 292 transitions. [2021-08-26 14:40:33,356 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 292 transitions. Word has length 8 [2021-08-26 14:40:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:33,356 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 292 transitions. [2021-08-26 14:40:33,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-26 14:40:33,357 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 292 transitions. [2021-08-26 14:40:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 14:40:33,357 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:33,358 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:33,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 14:40:33,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:33,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1919960838, now seen corresponding path program 1 times [2021-08-26 14:40:33,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:33,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447329041] [2021-08-26 14:40:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:33,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447329041] [2021-08-26 14:40:33,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447329041] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 14:40:33,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030687278] [2021-08-26 14:40:33,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 14:40:33,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 14:40:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:40:33,433 INFO L87 Difference]: Start difference. First operand 127 states and 292 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-26 14:40:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:33,468 INFO L93 Difference]: Finished difference Result 167 states and 374 transitions. [2021-08-26 14:40:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 14:40:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-08-26 14:40:33,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:33,470 INFO L225 Difference]: With dead ends: 167 [2021-08-26 14:40:33,470 INFO L226 Difference]: Without dead ends: 87 [2021-08-26 14:40:33,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:40:33,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-08-26 14:40:33,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-08-26 14:40:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 2.13953488372093) internal successors, (184), 86 states have internal predecessors, (184), 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) [2021-08-26 14:40:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 184 transitions. [2021-08-26 14:40:33,475 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 184 transitions. Word has length 9 [2021-08-26 14:40:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:33,475 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 184 transitions. [2021-08-26 14:40:33,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-08-26 14:40:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 184 transitions. [2021-08-26 14:40:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 14:40:33,476 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:33,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:33,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 14:40:33,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:33,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:33,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1159168284, now seen corresponding path program 1 times [2021-08-26 14:40:33,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:33,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698379699] [2021-08-26 14:40:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:33,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698379699] [2021-08-26 14:40:33,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698379699] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 14:40:33,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83923358] [2021-08-26 14:40:33,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 14:40:33,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 14:40:33,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 14:40:33,618 INFO L87 Difference]: Start difference. First operand 87 states and 184 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-26 14:40:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:33,647 INFO L93 Difference]: Finished difference Result 72 states and 126 transitions. [2021-08-26 14:40:33,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 14:40:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-08-26 14:40:33,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:33,651 INFO L225 Difference]: With dead ends: 72 [2021-08-26 14:40:33,652 INFO L226 Difference]: Without dead ends: 55 [2021-08-26 14:40:33,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:40:33,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-26 14:40:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-08-26 14:40:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.7037037037037037) internal successors, (92), 54 states have internal predecessors, (92), 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) [2021-08-26 14:40:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 92 transitions. [2021-08-26 14:40:33,666 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 92 transitions. Word has length 11 [2021-08-26 14:40:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:33,666 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 92 transitions. [2021-08-26 14:40:33,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-08-26 14:40:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 92 transitions. [2021-08-26 14:40:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 14:40:33,668 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:33,668 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:33,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 14:40:33,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:33,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1644423455, now seen corresponding path program 1 times [2021-08-26 14:40:33,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:33,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590783534] [2021-08-26 14:40:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:33,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590783534] [2021-08-26 14:40:33,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590783534] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 14:40:33,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456931163] [2021-08-26 14:40:33,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 14:40:33,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 14:40:33,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-26 14:40:33,783 INFO L87 Difference]: Start difference. First operand 55 states and 92 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2021-08-26 14:40:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:33,814 INFO L93 Difference]: Finished difference Result 40 states and 60 transitions. [2021-08-26 14:40:33,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 14:40:33,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 [2021-08-26 14:40:33,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:33,816 INFO L225 Difference]: With dead ends: 40 [2021-08-26 14:40:33,816 INFO L226 Difference]: Without dead ends: 33 [2021-08-26 14:40:33,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-26 14:40:33,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-26 14:40:33,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-08-26 14:40:33,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.5) internal successors, (48), 32 states have internal predecessors, (48), 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) [2021-08-26 14:40:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2021-08-26 14:40:33,818 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 13 [2021-08-26 14:40:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:33,818 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2021-08-26 14:40:33,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2021-08-26 14:40:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-08-26 14:40:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 14:40:33,819 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:33,819 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:33,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 14:40:33,819 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:33,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:33,820 INFO L82 PathProgramCache]: Analyzing trace with hash -712942986, now seen corresponding path program 1 times [2021-08-26 14:40:33,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:33,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425323537] [2021-08-26 14:40:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:33,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 14:40:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 14:40:33,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 14:40:33,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425323537] [2021-08-26 14:40:33,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425323537] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 14:40:33,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 14:40:33,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 14:40:33,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105045319] [2021-08-26 14:40:33,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 14:40:33,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 14:40:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 14:40:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 14:40:33,963 INFO L87 Difference]: Start difference. First operand 33 states and 48 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-08-26 14:40:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 14:40:34,046 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2021-08-26 14:40:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 14:40:34,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-08-26 14:40:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 14:40:34,047 INFO L225 Difference]: With dead ends: 42 [2021-08-26 14:40:34,047 INFO L226 Difference]: Without dead ends: 25 [2021-08-26 14:40:34,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-26 14:40:34,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-08-26 14:40:34,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-08-26 14:40:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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) [2021-08-26 14:40:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-08-26 14:40:34,049 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2021-08-26 14:40:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 14:40:34,049 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-08-26 14:40:34,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-08-26 14:40:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-08-26 14:40:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 14:40:34,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 14:40:34,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 14:40:34,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 14:40:34,050 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-08-26 14:40:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 14:40:34,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1015129802, now seen corresponding path program 2 times [2021-08-26 14:40:34,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 14:40:34,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255556969] [2021-08-26 14:40:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 14:40:34,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 14:40:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 14:40:34,100 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 14:40:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 14:40:34,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 14:40:34,219 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 14:40:34,220 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:40:34,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:40:34,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-26 14:40:34,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-26 14:40:34,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 14:40:34,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 14:40:34,228 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-26 14:40:34,228 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 14:40:34,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:40:34 BasicIcfg [2021-08-26 14:40:34,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 14:40:34,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 14:40:34,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 14:40:34,308 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 14:40:34,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:40:27" (3/4) ... [2021-08-26 14:40:34,310 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 14:40:34,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 14:40:34,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 14:40:34,389 INFO L168 Benchmark]: Toolchain (without parser) took 9388.31 ms. Allocated memory was 48.2 MB in the beginning and 220.2 MB in the end (delta: 172.0 MB). Free memory was 22.6 MB in the beginning and 149.6 MB in the end (delta: -127.0 MB). Peak memory consumption was 44.9 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,390 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 14:40:34,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.47 ms. Allocated memory is still 58.7 MB. Free memory was 43.7 MB in the beginning and 30.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.63 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 41.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,391 INFO L168 Benchmark]: Boogie Preprocessor took 33.60 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 39.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,391 INFO L168 Benchmark]: RCFGBuilder took 1877.15 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 39.0 MB in the beginning and 33.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,391 INFO L168 Benchmark]: TraceAbstraction took 6736.63 ms. Allocated memory was 90.2 MB in the beginning and 220.2 MB in the end (delta: 130.0 MB). Free memory was 33.3 MB in the beginning and 160.1 MB in the end (delta: -126.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,392 INFO L168 Benchmark]: Witness Printer took 79.51 ms. Allocated memory is still 220.2 MB. Free memory was 160.1 MB in the beginning and 149.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 14:40:34,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.47 ms. Allocated memory is still 58.7 MB. Free memory was 43.7 MB in the beginning and 30.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.63 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 41.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.60 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 39.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1877.15 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 39.0 MB in the beginning and 33.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6736.63 ms. Allocated memory was 90.2 MB in the beginning and 220.2 MB in the end (delta: 130.0 MB). Free memory was 33.3 MB in the beginning and 160.1 MB in the end (delta: -126.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 79.51 ms. Allocated memory is still 220.2 MB. Free memory was 160.1 MB in the beginning and 149.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4943.6ms, 92 PlacesBefore, 27 PlacesAfterwards, 87 TransitionsBefore, 21 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 2671 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1407, positive: 1283, positive conditional: 0, positive unconditional: 1283, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 717, positive: 687, positive conditional: 0, positive unconditional: 687, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 717, positive: 662, positive conditional: 0, positive unconditional: 662, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 55, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 326, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 266, negative conditional: 0, negative unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1407, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 717, unknown conditional: 0, unknown unconditional: 717] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t2313; [L808] FCALL, FORK 0 pthread_create(&t2313, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L809] 0 pthread_t t2314; [L810] FCALL, FORK 0 pthread_create(&t2314, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L766] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=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=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] EXPR 2 weak$$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$w_buff0)) [L774] EXPR 2 !y$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) [L774] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] 2 y$w_buff0 = weak$$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)) [L775] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L775] EXPR 2 weak$$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$w_buff1)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] EXPR 2 weak$$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)) [L776] 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) [L776] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] 2 y$w_buff0_used = weak$$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)) [L777] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L777] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] EXPR 2 weak$$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)) [L778] 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) [L778] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] 2 y$r_buff0_thd2 = weak$$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)) [L779] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L779] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L816] 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) [L816] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L816] 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) [L816] 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) [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L818] 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 [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L820] 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 [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] - 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: 810]: 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: 808]: 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 5 procedures, 105 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 6500.9ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 14.9ms, AutomataDifference: 302.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5022.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 113 SDtfs, 101 SDslu, 191 SDs, 0 SdLazy, 88 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 116.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 82.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.4ms SsaConstructionTime, 293.3ms SatisfiabilityAnalysisTime, 435.0ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-26 14:40:34,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...