./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe006_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/safe006_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 642ce1f5575f93f1a4c25d439366f0b058fd13dc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:52:03,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:52:03,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:52:03,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:52:03,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:52:03,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:52:03,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:52:03,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:52:03,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:52:03,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:52:03,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:52:03,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:52:03,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:52:03,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:52:03,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:52:03,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:52:03,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:52:03,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:52:03,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:52:03,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:52:03,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:52:03,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:52:03,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:52:03,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:52:03,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:52:03,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:52:03,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:52:03,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:52:03,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:52:03,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:52:03,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:52:03,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:52:03,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:52:03,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:52:03,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:52:03,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:52:03,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:52:03,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:52:03,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:52:03,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:52:03,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:52:03,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 15:52:03,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:52:03,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:52:03,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:52:03,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:52:03,746 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:52:03,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:52:03,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:52:03,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:52:03,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:52:03,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:52:03,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:52:03,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:52:03,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:52:03,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:52:03,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:52:03,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:52:03,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:52:03,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:52:03,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 15:52:03,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 15:52:03,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:52:03,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:52:03,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 642ce1f5575f93f1a4c25d439366f0b058fd13dc [2021-07-05 15:52:04,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:52:04,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:52:04,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:52:04,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:52:04,018 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:52:04,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe006_rmo.opt.i [2021-07-05 15:52:04,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b96edd0/76341364403540719ae61b5d85e1767f/FLAG03009b033 [2021-07-05 15:52:04,493 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:52:04,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe006_rmo.opt.i [2021-07-05 15:52:04,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b96edd0/76341364403540719ae61b5d85e1767f/FLAG03009b033 [2021-07-05 15:52:04,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b96edd0/76341364403540719ae61b5d85e1767f [2021-07-05 15:52:04,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:52:04,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:52:04,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:52:04,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:52:04,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:52:04,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:52:04" (1/1) ... [2021-07-05 15:52:04,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc34327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:04, skipping insertion in model container [2021-07-05 15:52:04,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:52:04" (1/1) ... [2021-07-05 15:52:04,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:52:04,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:52:05,017 WARN L224 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/safe006_rmo.opt.i[992,1005] [2021-07-05 15:52:05,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:52:05,222 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:52:05,232 WARN L224 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/safe006_rmo.opt.i[992,1005] [2021-07-05 15:52:05,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:52:05,336 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:52:05,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05 WrapperNode [2021-07-05 15:52:05,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:52:05,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:52:05,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:52:05,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:52:05,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:52:05,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:52:05,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:52:05,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:52:05,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:52:05,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:52:05,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:52:05,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:52:05,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (1/1) ... [2021-07-05 15:52:05,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:52:05,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:52:05,435 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) [2021-07-05 15:52:05,442 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 [2021-07-05 15:52:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-05 15:52:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-05 15:52:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:52:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:52:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:52:05,471 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:52:06,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:52:06,608 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-05 15:52:06,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:52:06 BoogieIcfgContainer [2021-07-05 15:52:06,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:52:06,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:52:06,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:52:06,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:52:06,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:52:04" (1/3) ... [2021-07-05 15:52:06,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4aa844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:52:06, skipping insertion in model container [2021-07-05 15:52:06,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:52:05" (2/3) ... [2021-07-05 15:52:06,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4aa844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:52:06, skipping insertion in model container [2021-07-05 15:52:06,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:52:06" (3/3) ... [2021-07-05 15:52:06,614 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_rmo.opt.i [2021-07-05 15:52:06,618 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:52:06,619 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:52:06,619 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 15:52:06,619 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:52:06,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:52:06,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:52:06,699 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:52:06,704 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:52:06,704 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:52:06,712 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:52:06,718 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 212 flow [2021-07-05 15:52:06,719 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 212 flow [2021-07-05 15:52:06,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 212 flow [2021-07-05 15:52:06,744 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-07-05 15:52:06,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:52:06,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-07-05 15:52:06,747 INFO L116 LiptonReduction]: Number of co-enabled transitions 844 [2021-07-05 15:52:07,437 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 198 [2021-07-05 15:52:07,734 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-07-05 15:52:08,929 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 322 DAG size of output: 278 [2021-07-05 15:52:09,441 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2021-07-05 15:52:11,275 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2021-07-05 15:52:11,642 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 101 [2021-07-05 15:52:11,785 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-07-05 15:52:14,411 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2021-07-05 15:52:14,632 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-07-05 15:52:15,083 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2021-07-05 15:52:15,300 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-07-05 15:52:15,302 INFO L131 LiptonReduction]: Checked pairs total: 1956 [2021-07-05 15:52:15,302 INFO L133 LiptonReduction]: Total number of compositions: 96 [2021-07-05 15:52:15,311 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 17 transitions, 44 flow [2021-07-05 15:52:15,319 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110 states, 108 states have (on average 2.324074074074074) internal successors, (251), 109 states have internal predecessors, (251), 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) [2021-07-05 15:52:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 2.324074074074074) internal successors, (251), 109 states have internal predecessors, (251), 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) [2021-07-05 15:52:15,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-05 15:52:15,323 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:15,324 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:15,324 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:15,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:15,328 INFO L82 PathProgramCache]: Analyzing trace with hash 288025066, now seen corresponding path program 1 times [2021-07-05 15:52:15,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:15,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080677514] [2021-07-05 15:52:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:15,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:15,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 15:52:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:15,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:15,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080677514] [2021-07-05 15:52:15,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080677514] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:15,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:15,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-05 15:52:15,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996307273] [2021-07-05 15:52:15,513 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 15:52:15,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:15,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 15:52:15,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:52:15,527 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 2.324074074074074) internal successors, (251), 109 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:15,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:15,552 INFO L93 Difference]: Finished difference Result 105 states and 237 transitions. [2021-07-05 15:52:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 15:52:15,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-07-05 15:52:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:15,563 INFO L225 Difference]: With dead ends: 105 [2021-07-05 15:52:15,564 INFO L226 Difference]: Without dead ends: 85 [2021-07-05 15:52:15,564 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:52:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-07-05 15:52:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-07-05 15:52:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 2.2142857142857144) internal successors, (186), 84 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:15,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 186 transitions. [2021-07-05 15:52:15,594 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 186 transitions. Word has length 7 [2021-07-05 15:52:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:15,595 INFO L442 AbstractCegarLoop]: Abstraction has 85 states and 186 transitions. [2021-07-05 15:52:15,595 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 186 transitions. [2021-07-05 15:52:15,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 15:52:15,596 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:15,596 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:15,596 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 15:52:15,596 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:15,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:15,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1710177083, now seen corresponding path program 1 times [2021-07-05 15:52:15,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:15,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211571030] [2021-07-05 15:52:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:15,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:15,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:15,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:15,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211571030] [2021-07-05 15:52:15,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211571030] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:15,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:15,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-05 15:52:15,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120827200] [2021-07-05 15:52:15,678 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 15:52:15,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:15,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 15:52:15,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:52:15,679 INFO L87 Difference]: Start difference. First operand 85 states and 186 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2021-07-05 15:52:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:15,683 INFO L93 Difference]: Finished difference Result 82 states and 178 transitions. [2021-07-05 15:52:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 15:52:15,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2021-07-05 15:52:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:15,684 INFO L225 Difference]: With dead ends: 82 [2021-07-05 15:52:15,684 INFO L226 Difference]: Without dead ends: 82 [2021-07-05 15:52:15,685 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 15:52:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-07-05 15:52:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-07-05 15:52:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 2.197530864197531) internal successors, (178), 81 states have internal predecessors, (178), 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) [2021-07-05 15:52:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 178 transitions. [2021-07-05 15:52:15,689 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 178 transitions. Word has length 8 [2021-07-05 15:52:15,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:15,689 INFO L442 AbstractCegarLoop]: Abstraction has 82 states and 178 transitions. [2021-07-05 15:52:15,689 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2021-07-05 15:52:15,689 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 178 transitions. [2021-07-05 15:52:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 15:52:15,690 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:15,690 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:15,690 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 15:52:15,690 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:15,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:15,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1475917901, now seen corresponding path program 1 times [2021-07-05 15:52:15,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:15,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129814920] [2021-07-05 15:52:15,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:15,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:15,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:15,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:52:15,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 15:52:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:15,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:15,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129814920] [2021-07-05 15:52:15,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129814920] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:15,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:15,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 15:52:15,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345408724] [2021-07-05 15:52:15,747 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 15:52:15,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:15,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 15:52:15,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:52:15,748 INFO L87 Difference]: Start difference. First operand 82 states and 178 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:15,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:15,766 INFO L93 Difference]: Finished difference Result 102 states and 213 transitions. [2021-07-05 15:52:15,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:52:15,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-07-05 15:52:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:15,767 INFO L225 Difference]: With dead ends: 102 [2021-07-05 15:52:15,768 INFO L226 Difference]: Without dead ends: 54 [2021-07-05 15:52:15,768 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:52:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-07-05 15:52:15,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-07-05 15:52:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 53 states have internal predecessors, (103), 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) [2021-07-05 15:52:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 103 transitions. [2021-07-05 15:52:15,771 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 103 transitions. Word has length 9 [2021-07-05 15:52:15,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:15,771 INFO L442 AbstractCegarLoop]: Abstraction has 54 states and 103 transitions. [2021-07-05 15:52:15,771 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 103 transitions. [2021-07-05 15:52:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 15:52:15,772 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:15,772 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:15,772 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 15:52:15,772 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:15,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:15,772 INFO L82 PathProgramCache]: Analyzing trace with hash 194504829, now seen corresponding path program 1 times [2021-07-05 15:52:15,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:15,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422275885] [2021-07-05 15:52:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:15,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:15,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-05 15:52:15,864 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-07-05 15:52:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 15:52:15,875 INFO L142 QuantifierPusher]: treesize reduction 35, result has 43.5 percent of original size [2021-07-05 15:52:15,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 15:52:15,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:15,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 15:52:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:15,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:15,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422275885] [2021-07-05 15:52:15,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422275885] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:15,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:15,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 15:52:15,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996740114] [2021-07-05 15:52:15,893 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 15:52:15,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:15,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 15:52:15,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 15:52:15,894 INFO L87 Difference]: Start difference. First operand 54 states and 103 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-07-05 15:52:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:15,939 INFO L93 Difference]: Finished difference Result 52 states and 98 transitions. [2021-07-05 15:52:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:52:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2021-07-05 15:52:15,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:15,940 INFO L225 Difference]: With dead ends: 52 [2021-07-05 15:52:15,940 INFO L226 Difference]: Without dead ends: 52 [2021-07-05 15:52:15,941 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:52:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-07-05 15:52:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-07-05 15:52:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.9215686274509804) internal successors, (98), 51 states have internal predecessors, (98), 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) [2021-07-05 15:52:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2021-07-05 15:52:15,943 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 10 [2021-07-05 15:52:15,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:15,944 INFO L442 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2021-07-05 15:52:15,944 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-07-05 15:52:15,944 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2021-07-05 15:52:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 15:52:15,944 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:15,944 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:15,945 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 15:52:15,945 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:15,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1734600395, now seen corresponding path program 1 times [2021-07-05 15:52:15,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:15,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888024400] [2021-07-05 15:52:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:15,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:16,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:16,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:52:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:16,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:16,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888024400] [2021-07-05 15:52:16,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888024400] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:16,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:16,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 15:52:16,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703640549] [2021-07-05 15:52:16,027 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 15:52:16,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:16,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 15:52:16,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 15:52:16,027 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:16,046 INFO L93 Difference]: Finished difference Result 50 states and 81 transitions. [2021-07-05 15:52:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 15:52:16,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-05 15:52:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:16,047 INFO L225 Difference]: With dead ends: 50 [2021-07-05 15:52:16,047 INFO L226 Difference]: Without dead ends: 38 [2021-07-05 15:52:16,047 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:52:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-07-05 15:52:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-07-05 15:52:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 37 states have internal predecessors, (60), 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) [2021-07-05 15:52:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-07-05 15:52:16,051 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 11 [2021-07-05 15:52:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:16,051 INFO L442 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-07-05 15:52:16,051 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-07-05 15:52:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 15:52:16,052 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:16,052 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:16,052 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 15:52:16,052 INFO L374 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:16,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:16,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1621367757, now seen corresponding path program 1 times [2021-07-05 15:52:16,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:16,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602465303] [2021-07-05 15:52:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:16,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 15:52:16,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:16,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:16,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 15:52:16,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 15:52:16,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 15:52:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 15:52:16,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 15:52:16,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602465303] [2021-07-05 15:52:16,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602465303] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 15:52:16,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 15:52:16,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 15:52:16,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484597696] [2021-07-05 15:52:16,136 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 15:52:16,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 15:52:16,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 15:52:16,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-05 15:52:16,137 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 15:52:16,158 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2021-07-05 15:52:16,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 15:52:16,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-05 15:52:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 15:52:16,159 INFO L225 Difference]: With dead ends: 31 [2021-07-05 15:52:16,159 INFO L226 Difference]: Without dead ends: 25 [2021-07-05 15:52:16,159 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-05 15:52:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-07-05 15:52:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-07-05 15:52:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 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) [2021-07-05 15:52:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-07-05 15:52:16,166 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 12 [2021-07-05 15:52:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 15:52:16,166 INFO L442 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-07-05 15:52:16,166 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:52:16,166 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2021-07-05 15:52:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 15:52:16,167 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 15:52:16,167 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 15:52:16,167 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 15:52:16,167 INFO L374 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:52:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:52:16,167 INFO L82 PathProgramCache]: Analyzing trace with hash -77613208, now seen corresponding path program 1 times [2021-07-05 15:52:16,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 15:52:16,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942613752] [2021-07-05 15:52:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 15:52:16,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 15:52:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 15:52:16,209 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 15:52:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 15:52:16,232 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 15:52:16,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 15:52:16,252 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 15:52:16,253 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-05 15:52:16,253 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 15:52:16,255 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2021-07-05 15:52:16,257 INFO L224 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-05 15:52:16,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 03:52:16 BasicIcfg [2021-07-05 15:52:16,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 15:52:16,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 15:52:16,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 15:52:16,300 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 15:52:16,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:52:06" (3/4) ... [2021-07-05 15:52:16,301 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 15:52:16,343 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 15:52:16,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 15:52:16,344 INFO L168 Benchmark]: Toolchain (without parser) took 11483.39 ms. Allocated memory was 54.5 MB in the beginning and 251.7 MB in the end (delta: 197.1 MB). Free memory was 30.7 MB in the beginning and 157.4 MB in the end (delta: -126.7 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,344 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:52:16,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.21 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 43.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 41.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,345 INFO L168 Benchmark]: Boogie Preprocessor took 18.16 ms. Allocated memory is still 67.1 MB. Free memory was 41.0 MB in the beginning and 38.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,345 INFO L168 Benchmark]: RCFGBuilder took 1202.65 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 38.9 MB in the beginning and 70.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,345 INFO L168 Benchmark]: TraceAbstraction took 9688.92 ms. Allocated memory was 98.6 MB in the beginning and 251.7 MB in the end (delta: 153.1 MB). Free memory was 69.5 MB in the beginning and 170.0 MB in the end (delta: -100.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,345 INFO L168 Benchmark]: Witness Printer took 43.90 ms. Allocated memory is still 251.7 MB. Free memory was 170.0 MB in the beginning and 157.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-05 15:52:16,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.21 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 43.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 41.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.16 ms. Allocated memory is still 67.1 MB. Free memory was 41.0 MB in the beginning and 38.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1202.65 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 38.9 MB in the beginning and 70.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9688.92 ms. Allocated memory was 98.6 MB in the beginning and 251.7 MB in the end (delta: 153.1 MB). Free memory was 69.5 MB in the beginning and 170.0 MB in the end (delta: -100.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.1 GB. * Witness Printer took 43.90 ms. Allocated memory is still 251.7 MB. Free memory was 170.0 MB in the beginning and 157.4 MB in the end (delta: 12.6 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: 8582.5ms, 106 PlacesBefore, 24 PlacesAfterwards, 101 TransitionsBefore, 17 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 96 TotalNumberOfCompositions, 1956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 995, positive: 873, positive conditional: 0, positive unconditional: 873, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 577, positive: 543, positive conditional: 0, positive unconditional: 543, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 577, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 624, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 617, negative conditional: 0, negative unconditional: 617, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 995, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 577, unknown conditional: 0, unknown unconditional: 577] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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; [L712] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L713] 0 int __unbuffered_p0_EAX$mem_tmp; [L714] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L720] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L721] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L722] 0 int __unbuffered_p0_EAX$w_buff0; [L723] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L724] 0 int __unbuffered_p0_EAX$w_buff1; [L725] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L727] 0 int __unbuffered_p1_EAX = 0; [L728] 0 _Bool main$tmp_guard0; [L729] 0 _Bool main$tmp_guard1; [L731] 0 int x = 0; [L733] 0 int y = 0; [L734] 0 _Bool y$flush_delayed; [L735] 0 int y$mem_tmp; [L736] 0 _Bool y$r_buff0_thd0; [L737] 0 _Bool y$r_buff0_thd1; [L738] 0 _Bool y$r_buff0_thd2; [L739] 0 _Bool y$r_buff1_thd0; [L740] 0 _Bool y$r_buff1_thd1; [L741] 0 _Bool y$r_buff1_thd2; [L742] 0 _Bool y$read_delayed; [L743] 0 int *y$read_delayed_var; [L744] 0 int y$w_buff0; [L745] 0 _Bool y$w_buff0_used; [L746] 0 int y$w_buff1; [L747] 0 _Bool y$w_buff1_used; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice1; [L750] 0 _Bool weak$$choice2; [L812] 0 pthread_t t1931; [L813] FCALL, FORK 0 pthread_create(&t1931, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, 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] [L754] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L755] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L756] 1 y$flush_delayed = weak$$choice2 [L757] EXPR 1 \read(y) [L757] 1 y$mem_tmp = y [L758] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L758] EXPR 1 \read(y) [L758] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L758] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L759] EXPR 1 weak$$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$w_buff0)) [L759] EXPR 1 !y$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) [L759] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L759] 1 y$w_buff0 = weak$$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)) [L760] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L760] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1) [L760] EXPR 1 weak$$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$w_buff1)) [L760] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L761] EXPR 1 weak$$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)) [L761] 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) [L761] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L761] 1 y$w_buff0_used = weak$$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)) [L762] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L762] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L762] EXPR 1 weak$$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$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L762] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L763] EXPR 1 weak$$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)) [L763] 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) [L763] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L763] 1 y$r_buff0_thd1 = weak$$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)) [L764] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L764] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L764] EXPR 1 weak$$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$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L764] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L766] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L767] EXPR 1 \read(y) [L767] 1 __unbuffered_p0_EAX = y [L768] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L768] EXPR 1 \read(y) [L768] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L768] 1 y = y$flush_delayed ? y$mem_tmp : y [L769] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=0, y={6:0}, 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] [L772] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L777] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 1 return 0; [L814] 0 pthread_t t1932; [L815] FCALL, FORK 0 pthread_create(&t1932, ((void *)0), P1, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, 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] [L784] 2 __unbuffered_p1_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L787] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, 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] [L790] 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) [L790] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L790] EXPR 2 \read(y) [L790] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L790] 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) [L790] 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) [L791] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L791] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L792] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L792] 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 [L793] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L793] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L794] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L794] 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 [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L817] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=0, weak$$choice2=0, x=1, y={6:0}, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] COND FALSE 0 !(!cond) [L821] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L821] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L821] EXPR 0 \read(y) [L821] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L821] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L821] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L822] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L823] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L824] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L825] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L829] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L829] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L829] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L829] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L829] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L829] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L830] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice1=1, weak$$choice2=0, x=1, y={6:0}, 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] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9557.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 167.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8615.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 75 SDslu, 89 SDs, 0 SdLazy, 60 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 93.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.4ms SsaConstructionTime, 233.0ms SatisfiabilityAnalysisTime, 277.8ms InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 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! [2021-07-05 15:52:16,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...