./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi004_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 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/rfi004_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 b08e01755dab26a7581e74f208fac0ca09c4e6a2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-997cd7c-m [2021-09-22 14:46:33,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:46:33,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:46:33,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:46:33,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:46:33,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:46:33,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:46:33,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:46:33,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:46:33,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:46:33,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:46:33,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:46:33,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:46:33,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:46:33,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:46:33,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:46:33,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:46:33,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:46:33,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:46:33,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:46:33,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:46:33,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:46:33,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:46:33,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:46:33,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:46:33,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:46:33,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:46:33,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:46:33,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:46:33,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:46:33,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:46:33,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:46:33,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:46:33,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:46:33,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:46:33,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:46:33,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:46:33,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:46:33,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:46:33,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:46:33,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:46:33,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:46:33,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:46:33,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:46:33,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:46:33,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:46:33,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:46:33,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:46:33,737 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:46:33,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:46:33,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:46:33,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:46:33,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:46:33,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:46:33,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:46:33,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:46:33,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:46:33,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:46:33,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:46:33,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:46:33,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:46:33,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:46:33,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b08e01755dab26a7581e74f208fac0ca09c4e6a2 [2021-09-22 14:46:33,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:46:33,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:46:33,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:46:33,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:46:33,993 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:46:33,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi004_rmo.oepc.i [2021-09-22 14:46:34,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438914c14/b81019ccd1764f0ea5a589e12949c61c/FLAGa6b3f877f [2021-09-22 14:46:34,480 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:46:34,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi004_rmo.oepc.i [2021-09-22 14:46:34,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438914c14/b81019ccd1764f0ea5a589e12949c61c/FLAGa6b3f877f [2021-09-22 14:46:34,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438914c14/b81019ccd1764f0ea5a589e12949c61c [2021-09-22 14:46:34,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:46:34,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:46:34,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:46:34,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:46:34,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:46:34,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:46:34" (1/1) ... [2021-09-22 14:46:34,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269cd2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:34, skipping insertion in model container [2021-09-22 14:46:34,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:46:34" (1/1) ... [2021-09-22 14:46:34,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:46:34,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:46:35,003 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/rfi004_rmo.oepc.i[992,1005] [2021-09-22 14:46:35,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:46:35,144 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:46:35,156 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/rfi004_rmo.oepc.i[992,1005] [2021-09-22 14:46:35,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:46:35,243 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:46:35,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35 WrapperNode [2021-09-22 14:46:35,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:46:35,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:46:35,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:46:35,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:46:35,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:46:35,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:46:35,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:46:35,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:46:35,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:46:35,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:46:35,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:46:35,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:46:35,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (1/1) ... [2021-09-22 14:46:35,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:46:35,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:46:35,369 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) [2021-09-22 14:46:35,392 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 [2021-09-22 14:46:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:46:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:46:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:46:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:46:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:46:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:46:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:46:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:46:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:46:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:46:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:46:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:46:35,409 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:46:36,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:46:36,375 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:46:36,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:46:36 BoogieIcfgContainer [2021-09-22 14:46:36,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:46:36,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:46:36,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:46:36,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:46:36,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:46:34" (1/3) ... [2021-09-22 14:46:36,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67608224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:46:36, skipping insertion in model container [2021-09-22 14:46:36,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:46:35" (2/3) ... [2021-09-22 14:46:36,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67608224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:46:36, skipping insertion in model container [2021-09-22 14:46:36,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:46:36" (3/3) ... [2021-09-22 14:46:36,382 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi004_rmo.oepc.i [2021-09-22 14:46:36,385 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:46:36,385 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:46:36,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:46:36,385 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:46:36,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,410 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:46:36,439 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:46:36,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:46:36,469 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 [2021-09-22 14:46:36,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-09-22 14:46:36,478 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:46:36,483 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 190 flow [2021-09-22 14:46:36,485 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 190 flow [2021-09-22 14:46:36,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2021-09-22 14:46:36,507 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2021-09-22 14:46:36,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:46:36,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-09-22 14:46:36,511 INFO L116 LiptonReduction]: Number of co-enabled transitions 1036 [2021-09-22 14:46:40,099 INFO L131 LiptonReduction]: Checked pairs total: 2557 [2021-09-22 14:46:40,099 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-09-22 14:46:40,105 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2021-09-22 14:46:40,128 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 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) [2021-09-22 14:46:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 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) [2021-09-22 14:46:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-09-22 14:46:40,135 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:40,135 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-09-22 14:46:40,136 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:40,140 INFO L82 PathProgramCache]: Analyzing trace with hash 822006776, now seen corresponding path program 1 times [2021-09-22 14:46:40,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:40,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975729186] [2021-09-22 14:46:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:40,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:40,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:40,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975729186] [2021-09-22 14:46:40,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975729186] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:40,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:40,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:46:40,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881114451] [2021-09-22 14:46:40,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:46:40,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:40,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:46:40,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:46:40,379 INFO L87 Difference]: Start difference. First operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-09-22 14:46:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:40,419 INFO L93 Difference]: Finished difference Result 134 states and 309 transitions. [2021-09-22 14:46:40,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:46:40,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-09-22 14:46:40,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:40,430 INFO L225 Difference]: With dead ends: 134 [2021-09-22 14:46:40,430 INFO L226 Difference]: Without dead ends: 130 [2021-09-22 14:46:40,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:46:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-09-22 14:46:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-09-22 14:46:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 2.3410852713178296) internal successors, (302), 129 states have internal predecessors, (302), 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) [2021-09-22 14:46:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 302 transitions. [2021-09-22 14:46:40,461 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 302 transitions. Word has length 5 [2021-09-22 14:46:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:40,461 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 302 transitions. [2021-09-22 14:46:40,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-09-22 14:46:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 302 transitions. [2021-09-22 14:46:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-09-22 14:46:40,462 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:40,462 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:40,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:46:40,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:40,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:40,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1497929064, now seen corresponding path program 1 times [2021-09-22 14:46:40,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:40,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437123538] [2021-09-22 14:46:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:40,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:40,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:40,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437123538] [2021-09-22 14:46:40,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437123538] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:40,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:40,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:46:40,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770890792] [2021-09-22 14:46:40,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:46:40,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:46:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:46:40,549 INFO L87 Difference]: Start difference. First operand 130 states and 302 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) [2021-09-22 14:46:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:40,568 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2021-09-22 14:46:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:46:40,568 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 [2021-09-22 14:46:40,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:40,569 INFO L225 Difference]: With dead ends: 138 [2021-09-22 14:46:40,569 INFO L226 Difference]: Without dead ends: 114 [2021-09-22 14:46:40,570 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:46:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-09-22 14:46:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-09-22 14:46:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.2831858407079646) internal successors, (258), 113 states have internal predecessors, (258), 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) [2021-09-22 14:46:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 258 transitions. [2021-09-22 14:46:40,589 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 258 transitions. Word has length 8 [2021-09-22 14:46:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:40,590 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 258 transitions. [2021-09-22 14:46:40,590 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) [2021-09-22 14:46:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 258 transitions. [2021-09-22 14:46:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 14:46:40,591 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:40,591 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:40,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:46:40,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:40,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:40,592 INFO L82 PathProgramCache]: Analyzing trace with hash -696333080, now seen corresponding path program 1 times [2021-09-22 14:46:40,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:40,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713096612] [2021-09-22 14:46:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:40,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:40,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:40,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713096612] [2021-09-22 14:46:40,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713096612] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:40,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:40,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:46:40,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426993018] [2021-09-22 14:46:40,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:46:40,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:46:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:46:40,670 INFO L87 Difference]: Start difference. First operand 114 states and 258 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:46:40,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:40,691 INFO L93 Difference]: Finished difference Result 90 states and 167 transitions. [2021-09-22 14:46:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:46:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-09-22 14:46:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:40,693 INFO L225 Difference]: With dead ends: 90 [2021-09-22 14:46:40,694 INFO L226 Difference]: Without dead ends: 66 [2021-09-22 14:46:40,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:46:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-09-22 14:46:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-09-22 14:46:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.7538461538461538) internal successors, (114), 65 states have internal predecessors, (114), 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) [2021-09-22 14:46:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 114 transitions. [2021-09-22 14:46:40,702 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 114 transitions. Word has length 10 [2021-09-22 14:46:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:40,702 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 114 transitions. [2021-09-22 14:46:40,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:46:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-09-22 14:46:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:46:40,703 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:40,703 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:40,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:46:40,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1673136612, now seen corresponding path program 1 times [2021-09-22 14:46:40,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:40,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917872274] [2021-09-22 14:46:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:40,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:40,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:40,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917872274] [2021-09-22 14:46:40,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917872274] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:40,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:40,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:46:40,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232240836] [2021-09-22 14:46:40,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:46:40,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:40,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:46:40,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:46:40,871 INFO L87 Difference]: Start difference. First operand 66 states and 114 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) [2021-09-22 14:46:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:40,889 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2021-09-22 14:46:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:46:40,891 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 [2021-09-22 14:46:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:40,892 INFO L225 Difference]: With dead ends: 47 [2021-09-22 14:46:40,892 INFO L226 Difference]: Without dead ends: 38 [2021-09-22 14:46:40,892 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:46:40,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-09-22 14:46:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-09-22 14:46:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 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) [2021-09-22 14:46:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 58 transitions. [2021-09-22 14:46:40,894 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 58 transitions. Word has length 13 [2021-09-22 14:46:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:40,894 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 58 transitions. [2021-09-22 14:46:40,895 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) [2021-09-22 14:46:40,895 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2021-09-22 14:46:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:46:40,895 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:40,895 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:40,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:46:40,896 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1777938901, now seen corresponding path program 1 times [2021-09-22 14:46:40,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:40,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422966728] [2021-09-22 14:46:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:40,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:40,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:40,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422966728] [2021-09-22 14:46:40,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422966728] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:40,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:40,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:46:40,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018586724] [2021-09-22 14:46:40,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:46:40,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:46:40,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:46:40,971 INFO L87 Difference]: Start difference. First operand 38 states and 58 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) [2021-09-22 14:46:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:41,003 INFO L93 Difference]: Finished difference Result 50 states and 73 transitions. [2021-09-22 14:46:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:46:41,004 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 [2021-09-22 14:46:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:41,004 INFO L225 Difference]: With dead ends: 50 [2021-09-22 14:46:41,004 INFO L226 Difference]: Without dead ends: 23 [2021-09-22 14:46:41,005 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:46:41,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-09-22 14:46:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-09-22 14:46:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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) [2021-09-22 14:46:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-09-22 14:46:41,006 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2021-09-22 14:46:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:41,006 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-09-22 14:46:41,007 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) [2021-09-22 14:46:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-09-22 14:46:41,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:46:41,007 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:41,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:41,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:46:41,007 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:41,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:41,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1840011253, now seen corresponding path program 2 times [2021-09-22 14:46:41,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:41,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739119624] [2021-09-22 14:46:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:41,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:46:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:46:41,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:46:41,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739119624] [2021-09-22 14:46:41,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739119624] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:46:41,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:46:41,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:46:41,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231948768] [2021-09-22 14:46:41,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:46:41,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:46:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:46:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:46:41,110 INFO L87 Difference]: Start difference. First operand 23 states and 28 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) [2021-09-22 14:46:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:46:41,151 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-09-22 14:46:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:46:41,152 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 [2021-09-22 14:46:41,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:46:41,152 INFO L225 Difference]: With dead ends: 30 [2021-09-22 14:46:41,152 INFO L226 Difference]: Without dead ends: 19 [2021-09-22 14:46:41,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.1ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:46:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-09-22 14:46:41,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-09-22 14:46:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-09-22 14:46:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-09-22 14:46:41,154 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2021-09-22 14:46:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:46:41,154 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-09-22 14:46:41,154 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) [2021-09-22 14:46:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-09-22 14:46:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:46:41,155 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:46:41,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:46:41,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:46:41,155 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:46:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:46:41,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1641274609, now seen corresponding path program 3 times [2021-09-22 14:46:41,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:46:41,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598766482] [2021-09-22 14:46:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:46:41,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:46:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:46:41,192 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:46:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:46:41,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:46:41,231 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:46:41,232 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:46:41,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:46:41,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:46:41,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:46:41,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:46:41,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:46:41,238 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:46:41,238 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:46:41,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:46:41 BasicIcfg [2021-09-22 14:46:41,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:46:41,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:46:41,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:46:41,275 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:46:41,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:46:36" (3/4) ... [2021-09-22 14:46:41,277 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:46:41,319 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:46:41,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:46:41,320 INFO L168 Benchmark]: Toolchain (without parser) took 6484.40 ms. Allocated memory was 67.1 MB in the beginning and 136.3 MB in the end (delta: 69.2 MB). Free memory was 46.4 MB in the beginning and 53.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,320 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:46:41,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.21 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 39.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.85 ms. Allocated memory is still 67.1 MB. Free memory was 39.5 MB in the beginning and 36.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,321 INFO L168 Benchmark]: Boogie Preprocessor took 42.00 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 35.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,321 INFO L168 Benchmark]: RCFGBuilder took 1028.00 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 35.1 MB in the beginning and 49.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,322 INFO L168 Benchmark]: TraceAbstraction took 4897.32 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 49.2 MB in the beginning and 63.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,322 INFO L168 Benchmark]: Witness Printer took 44.29 ms. Allocated memory is still 136.3 MB. Free memory was 63.7 MB in the beginning and 53.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:46:41,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.21 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 39.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.85 ms. Allocated memory is still 67.1 MB. Free memory was 39.5 MB in the beginning and 36.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.00 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 35.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1028.00 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 35.1 MB in the beginning and 49.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4897.32 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 49.2 MB in the beginning and 63.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 44.29 ms. Allocated memory is still 136.3 MB. Free memory was 63.7 MB in the beginning and 53.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3613.6ms, 95 PlacesBefore, 27 PlacesAfterwards, 90 TransitionsBefore, 21 TransitionsAfterwards, 1036 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 2557 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1308, positive: 1187, positive conditional: 0, positive unconditional: 1187, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 697, positive: 668, positive conditional: 0, positive unconditional: 668, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 697, positive: 659, positive conditional: 0, positive unconditional: 659, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 192, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 164, negative conditional: 0, negative unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1308, positive: 519, positive conditional: 0, positive unconditional: 519, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 697, unknown conditional: 0, unknown unconditional: 697] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L815] 0 pthread_t t1657; [L816] FCALL, FORK 0 pthread_create(&t1657, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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=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, z=0] [L817] 0 pthread_t t1658; [L818] FCALL, FORK 0 pthread_create(&t1658, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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=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, z=0] [L773] 2 y$w_buff1 = y$w_buff0 [L774] 2 y$w_buff0 = 1 [L775] 2 y$w_buff1_used = y$w_buff0_used [L776] 2 y$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L778] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L779] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L780] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L781] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$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, z=0] [L784] 2 z = 1 [L787] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$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, z=1] [L790] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$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, z=1] [L743] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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=0, y$r_buff0_thd2=1, y$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, z=1] [L748] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L749] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L750] 1 y$flush_delayed = weak$$choice2 [L751] 1 y$mem_tmp = y [L752] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L752] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L753] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L753] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0) [L753] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L753] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L754] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L754] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1) [L754] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L754] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L755] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L755] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used) [L755] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L755] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L756] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L756] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L757] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1) [L757] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L757] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L758] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L758] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] 1 __unbuffered_p0_EAX = y [L760] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L760] 1 y = y$flush_delayed ? y$mem_tmp : y [L761] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$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=0, y$r_buff0_thd2=1, 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, z=1] [L793] 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) [L793] 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) [L794] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L794] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L795] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L795] 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 [L796] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L796] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L797] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L797] 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 [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L802] 2 return 0; [L766] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 1 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L4] COND FALSE 0 !(!cond) [L824] 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) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] 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) [L824] 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) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 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 [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 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 [L831] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __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=0, y$r_buff0_thd2=1, y$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, z=1] - UnprovableResult [Line: 19]: 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: 818]: 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: 816]: 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, 109 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4771.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 9.5ms, AutomataDifference: 211.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3658.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 113 SDtfs, 101 SDslu, 202 SDs, 0 SdLazy, 86 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 80.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 52.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.0ms SsaConstructionTime, 265.5ms SatisfiabilityAnalysisTime, 375.1ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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! [2021-09-22 14:46:41,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...