./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/mix051_pso.opt_rmo.opt_tso.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 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 02:49:29,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 02:49:29,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 02:49:29,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 02:49:29,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 02:49:29,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 02:49:29,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 02:49:29,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 02:49:29,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 02:49:29,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 02:49:29,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 02:49:29,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 02:49:29,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 02:49:29,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 02:49:29,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 02:49:29,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 02:49:29,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 02:49:29,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 02:49:29,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 02:49:29,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 02:49:29,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 02:49:29,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 02:49:29,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 02:49:29,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 02:49:29,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 02:49:29,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 02:49:29,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 02:49:29,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 02:49:29,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 02:49:29,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 02:49:29,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 02:49:29,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 02:49:29,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 02:49:29,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 02:49:29,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 02:49:29,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 02:49:29,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 02:49:29,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 02:49:29,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 02:49:29,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 02:49:29,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 02:49:29,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 02:49:29,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 02:49:29,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 02:49:29,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 02:49:29,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 02:49:29,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 02:49:29,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 02:49:29,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 02:49:29,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 02:49:29,557 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 02:49:29,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 02:49:29,558 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 02:49:29,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 02:49:29,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 02:49:29,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 02:49:29,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 02:49:29,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 02:49:29,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 02:49:29,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 02:49:29,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 02:49:29,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:49:29,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 02:49:29,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 02:49:29,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 02:49:29,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 02:49:29,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd [2021-12-16 02:49:29,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 02:49:29,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 02:49:29,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 02:49:29,783 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 02:49:29,783 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 02:49:29,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2021-12-16 02:49:29,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4c64c00/ad836b1c30e04132a3e170944306d028/FLAG23ca5c4f7 [2021-12-16 02:49:30,284 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 02:49:30,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2021-12-16 02:49:30,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4c64c00/ad836b1c30e04132a3e170944306d028/FLAG23ca5c4f7 [2021-12-16 02:49:30,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4c64c00/ad836b1c30e04132a3e170944306d028 [2021-12-16 02:49:30,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 02:49:30,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 02:49:30,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 02:49:30,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 02:49:30,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 02:49:30,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:49:30" (1/1) ... [2021-12-16 02:49:30,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3768c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:30, skipping insertion in model container [2021-12-16 02:49:30,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:49:30" (1/1) ... [2021-12-16 02:49:30,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 02:49:30,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 02:49:30,807 WARN L230 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/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] [2021-12-16 02:49:30,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:49:30,946 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 02:49:30,954 WARN L230 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/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] [2021-12-16 02:49:31,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:49:31,051 INFO L208 MainTranslator]: Completed translation [2021-12-16 02:49:31,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31 WrapperNode [2021-12-16 02:49:31,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 02:49:31,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 02:49:31,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 02:49:31,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 02:49:31,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,087 INFO L137 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 192 [2021-12-16 02:49:31,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 02:49:31,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 02:49:31,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 02:49:31,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 02:49:31,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 02:49:31,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 02:49:31,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 02:49:31,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 02:49:31,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (1/1) ... [2021-12-16 02:49:31,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:49:31,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:49:31,176 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) [2021-12-16 02:49:31,193 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 [2021-12-16 02:49:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-16 02:49:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-16 02:49:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-16 02:49:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-16 02:49:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-16 02:49:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-16 02:49:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-16 02:49:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 02:49:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-16 02:49:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 02:49:31,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 02:49:31,211 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 02:49:31,332 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 02:49:31,333 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 02:49:31,769 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 02:49:31,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 02:49:31,922 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 02:49:31,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:49:31 BoogieIcfgContainer [2021-12-16 02:49:31,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 02:49:31,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 02:49:31,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 02:49:31,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 02:49:31,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:49:30" (1/3) ... [2021-12-16 02:49:31,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66227905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:49:31, skipping insertion in model container [2021-12-16 02:49:31,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:49:31" (2/3) ... [2021-12-16 02:49:31,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66227905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:49:31, skipping insertion in model container [2021-12-16 02:49:31,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:49:31" (3/3) ... [2021-12-16 02:49:31,931 INFO L111 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2021-12-16 02:49:31,935 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 02:49:31,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 02:49:31,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-16 02:49:31,935 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 02:49:31,970 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,970 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,970 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,971 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,971 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,971 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,971 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,971 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,972 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,972 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,972 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,972 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,973 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,973 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,973 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,973 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,974 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,974 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,974 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,975 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,975 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,975 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,975 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,975 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,976 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,977 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,978 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,979 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,980 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,981 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,981 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,981 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,981 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,981 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,982 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,984 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,984 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,984 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,984 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,984 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,985 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,985 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,986 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,987 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,988 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,988 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,988 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,988 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,989 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,989 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,989 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,989 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,995 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,995 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,995 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,995 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:31,996 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,007 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,008 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,009 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,010 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,010 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,010 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,011 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,012 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,012 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,012 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,012 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,015 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,016 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,016 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,016 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,016 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,018 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,019 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,020 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,020 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,021 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,021 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,021 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,021 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,022 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,023 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,023 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,023 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,023 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,023 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,024 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:49:32,024 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-16 02:49:32,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 02:49:32,078 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 02:49:32,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-16 02:49:32,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 286 flow [2021-12-16 02:49:32,153 INFO L129 PetriNetUnfolder]: 2/129 cut-off events. [2021-12-16 02:49:32,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:49:32,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2021-12-16 02:49:32,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 133 transitions, 286 flow [2021-12-16 02:49:32,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 129 transitions, 270 flow [2021-12-16 02:49:32,190 INFO L129 PetriNetUnfolder]: 0/90 cut-off events. [2021-12-16 02:49:32,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:49:32,191 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:32,191 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:32,192 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:32,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash 524967423, now seen corresponding path program 1 times [2021-12-16 02:49:32,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:32,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524699723] [2021-12-16 02:49:32,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:32,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:32,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:32,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524699723] [2021-12-16 02:49:32,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524699723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:32,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:32,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 02:49:32,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328302332] [2021-12-16 02:49:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:32,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 02:49:32,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 02:49:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 02:49:32,571 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 133 [2021-12-16 02:49:32,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2021-12-16 02:49:32,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:32,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 133 [2021-12-16 02:49:32,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:32,661 INFO L129 PetriNetUnfolder]: 10/201 cut-off events. [2021-12-16 02:49:32,661 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-16 02:49:32,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 201 events. 10/201 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 359 event pairs, 4 based on Foata normal form. 5/197 useless extension candidates. Maximal degree in co-relation 187. Up to 17 conditions per place. [2021-12-16 02:49:32,664 INFO L132 encePairwiseOnDemand]: 128/133 looper letters, 9 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2021-12-16 02:49:32,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 127 transitions, 288 flow [2021-12-16 02:49:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 02:49:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 02:49:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2021-12-16 02:49:32,679 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9423558897243107 [2021-12-16 02:49:32,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2021-12-16 02:49:32,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2021-12-16 02:49:32,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:32,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2021-12-16 02:49:32,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2021-12-16 02:49:32,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2021-12-16 02:49:32,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2021-12-16 02:49:32,703 INFO L186 Difference]: Start difference. First operand has 140 places, 129 transitions, 270 flow. Second operand 3 states and 376 transitions. [2021-12-16 02:49:32,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 127 transitions, 288 flow [2021-12-16 02:49:32,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 127 transitions, 284 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-16 02:49:32,710 INFO L242 Difference]: Finished difference. Result has 136 places, 125 transitions, 262 flow [2021-12-16 02:49:32,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=136, PETRI_TRANSITIONS=125} [2021-12-16 02:49:32,714 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, -4 predicate places. [2021-12-16 02:49:32,715 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 262 flow [2021-12-16 02:49:32,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2021-12-16 02:49:32,715 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:32,715 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:32,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 02:49:32,716 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1408801840, now seen corresponding path program 1 times [2021-12-16 02:49:32,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:32,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173667233] [2021-12-16 02:49:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:32,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:32,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:32,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173667233] [2021-12-16 02:49:32,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173667233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:32,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:32,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 02:49:32,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453801060] [2021-12-16 02:49:32,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:32,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 02:49:32,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 02:49:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 02:49:32,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 133 [2021-12-16 02:49:32,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2021-12-16 02:49:32,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:32,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 133 [2021-12-16 02:49:32,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:33,252 INFO L129 PetriNetUnfolder]: 538/1743 cut-off events. [2021-12-16 02:49:33,253 INFO L130 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2021-12-16 02:49:33,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2699 conditions, 1743 events. 538/1743 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12750 event pairs, 216 based on Foata normal form. 0/1694 useless extension candidates. Maximal degree in co-relation 2643. Up to 442 conditions per place. [2021-12-16 02:49:33,263 INFO L132 encePairwiseOnDemand]: 126/133 looper letters, 23 selfloop transitions, 3 changer transitions 53/173 dead transitions. [2021-12-16 02:49:33,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 173 transitions, 510 flow [2021-12-16 02:49:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:49:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:49:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1067 transitions. [2021-12-16 02:49:33,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913951545530493 [2021-12-16 02:49:33,267 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1067 transitions. [2021-12-16 02:49:33,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1067 transitions. [2021-12-16 02:49:33,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:33,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1067 transitions. [2021-12-16 02:49:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.55555555555556) internal successors, (1067), 9 states have internal predecessors, (1067), 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) [2021-12-16 02:49:33,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:33,274 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:33,274 INFO L186 Difference]: Start difference. First operand has 136 places, 125 transitions, 262 flow. Second operand 9 states and 1067 transitions. [2021-12-16 02:49:33,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 173 transitions, 510 flow [2021-12-16 02:49:33,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 173 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 02:49:33,278 INFO L242 Difference]: Finished difference. Result has 149 places, 113 transitions, 273 flow [2021-12-16 02:49:33,278 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=273, PETRI_PLACES=149, PETRI_TRANSITIONS=113} [2021-12-16 02:49:33,279 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2021-12-16 02:49:33,279 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 113 transitions, 273 flow [2021-12-16 02:49:33,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2021-12-16 02:49:33,279 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:33,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:33,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 02:49:33,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1797657935, now seen corresponding path program 1 times [2021-12-16 02:49:33,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461170857] [2021-12-16 02:49:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:33,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:33,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:33,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461170857] [2021-12-16 02:49:33,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461170857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:33,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:33,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 02:49:33,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6561678] [2021-12-16 02:49:33,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:33,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 02:49:33,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:33,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 02:49:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 02:49:33,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2021-12-16 02:49:33,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 113 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2021-12-16 02:49:33,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:33,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2021-12-16 02:49:33,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:33,930 INFO L129 PetriNetUnfolder]: 1792/3573 cut-off events. [2021-12-16 02:49:33,930 INFO L130 PetriNetUnfolder]: For 1111/1111 co-relation queries the response was YES. [2021-12-16 02:49:33,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 3573 events. 1792/3573 cut-off events. For 1111/1111 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 27694 event pairs, 103 based on Foata normal form. 0/3374 useless extension candidates. Maximal degree in co-relation 7110. Up to 1069 conditions per place. [2021-12-16 02:49:33,956 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 58 selfloop transitions, 18 changer transitions 5/174 dead transitions. [2021-12-16 02:49:33,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 174 transitions, 563 flow [2021-12-16 02:49:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 02:49:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-16 02:49:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1173 transitions. [2021-12-16 02:49:33,959 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8819548872180452 [2021-12-16 02:49:33,960 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1173 transitions. [2021-12-16 02:49:33,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1173 transitions. [2021-12-16 02:49:33,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:33,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1173 transitions. [2021-12-16 02:49:33,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.3) internal successors, (1173), 10 states have internal predecessors, (1173), 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) [2021-12-16 02:49:33,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2021-12-16 02:49:33,966 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2021-12-16 02:49:33,966 INFO L186 Difference]: Start difference. First operand has 149 places, 113 transitions, 273 flow. Second operand 10 states and 1173 transitions. [2021-12-16 02:49:33,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 174 transitions, 563 flow [2021-12-16 02:49:33,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 174 transitions, 554 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-12-16 02:49:33,978 INFO L242 Difference]: Finished difference. Result has 140 places, 129 transitions, 396 flow [2021-12-16 02:49:33,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=396, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2021-12-16 02:49:33,979 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2021-12-16 02:49:33,979 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 396 flow [2021-12-16 02:49:33,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2021-12-16 02:49:33,980 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:33,980 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:33,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 02:49:33,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:33,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 60447008, now seen corresponding path program 1 times [2021-12-16 02:49:33,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:33,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905194573] [2021-12-16 02:49:33,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:33,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:34,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:34,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905194573] [2021-12-16 02:49:34,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905194573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:34,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:34,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 02:49:34,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440370255] [2021-12-16 02:49:34,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:34,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 02:49:34,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 02:49:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 02:49:34,141 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2021-12-16 02:49:34,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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) [2021-12-16 02:49:34,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:34,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2021-12-16 02:49:34,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:34,993 INFO L129 PetriNetUnfolder]: 2149/5939 cut-off events. [2021-12-16 02:49:34,993 INFO L130 PetriNetUnfolder]: For 5107/5790 co-relation queries the response was YES. [2021-12-16 02:49:35,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14580 conditions, 5939 events. 2149/5939 cut-off events. For 5107/5790 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 58147 event pairs, 693 based on Foata normal form. 119/5698 useless extension candidates. Maximal degree in co-relation 14509. Up to 1312 conditions per place. [2021-12-16 02:49:35,052 INFO L132 encePairwiseOnDemand]: 123/133 looper letters, 57 selfloop transitions, 25 changer transitions 0/187 dead transitions. [2021-12-16 02:49:35,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 187 transitions, 756 flow [2021-12-16 02:49:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:49:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:49:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1035 transitions. [2021-12-16 02:49:35,055 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8646616541353384 [2021-12-16 02:49:35,055 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1035 transitions. [2021-12-16 02:49:35,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1035 transitions. [2021-12-16 02:49:35,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:35,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1035 transitions. [2021-12-16 02:49:35,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 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) [2021-12-16 02:49:35,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:35,061 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:35,061 INFO L186 Difference]: Start difference. First operand has 140 places, 129 transitions, 396 flow. Second operand 9 states and 1035 transitions. [2021-12-16 02:49:35,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 187 transitions, 756 flow [2021-12-16 02:49:35,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 187 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 02:49:35,080 INFO L242 Difference]: Finished difference. Result has 155 places, 152 transitions, 636 flow [2021-12-16 02:49:35,081 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=636, PETRI_PLACES=155, PETRI_TRANSITIONS=152} [2021-12-16 02:49:35,082 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 15 predicate places. [2021-12-16 02:49:35,082 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 152 transitions, 636 flow [2021-12-16 02:49:35,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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) [2021-12-16 02:49:35,083 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:35,083 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:35,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 02:49:35,083 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:35,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1494328210, now seen corresponding path program 1 times [2021-12-16 02:49:35,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:35,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586876910] [2021-12-16 02:49:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:35,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:35,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:35,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586876910] [2021-12-16 02:49:35,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586876910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:35,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:35,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 02:49:35,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169732613] [2021-12-16 02:49:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:35,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 02:49:35,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:35,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 02:49:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 02:49:35,221 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2021-12-16 02:49:35,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 152 transitions, 636 flow. Second operand has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 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) [2021-12-16 02:49:35,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:35,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2021-12-16 02:49:35,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:37,024 INFO L129 PetriNetUnfolder]: 5545/10985 cut-off events. [2021-12-16 02:49:37,024 INFO L130 PetriNetUnfolder]: For 27933/30259 co-relation queries the response was YES. [2021-12-16 02:49:37,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37934 conditions, 10985 events. 5545/10985 cut-off events. For 27933/30259 co-relation queries the response was YES. Maximal size of possible extension queue 891. Compared 100631 event pairs, 215 based on Foata normal form. 307/10762 useless extension candidates. Maximal degree in co-relation 37857. Up to 3242 conditions per place. [2021-12-16 02:49:37,128 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 86 selfloop transitions, 30 changer transitions 11/239 dead transitions. [2021-12-16 02:49:37,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 239 transitions, 1390 flow [2021-12-16 02:49:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 02:49:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-16 02:49:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1526 transitions. [2021-12-16 02:49:37,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8825910931174089 [2021-12-16 02:49:37,132 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1526 transitions. [2021-12-16 02:49:37,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1526 transitions. [2021-12-16 02:49:37,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:37,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1526 transitions. [2021-12-16 02:49:37,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.38461538461539) internal successors, (1526), 13 states have internal predecessors, (1526), 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) [2021-12-16 02:49:37,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 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) [2021-12-16 02:49:37,138 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 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) [2021-12-16 02:49:37,139 INFO L186 Difference]: Start difference. First operand has 155 places, 152 transitions, 636 flow. Second operand 13 states and 1526 transitions. [2021-12-16 02:49:37,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 239 transitions, 1390 flow [2021-12-16 02:49:37,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 239 transitions, 1362 flow, removed 14 selfloop flow, removed 0 redundant places. [2021-12-16 02:49:37,201 INFO L242 Difference]: Finished difference. Result has 173 places, 166 transitions, 845 flow [2021-12-16 02:49:37,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=845, PETRI_PLACES=173, PETRI_TRANSITIONS=166} [2021-12-16 02:49:37,201 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 33 predicate places. [2021-12-16 02:49:37,203 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 166 transitions, 845 flow [2021-12-16 02:49:37,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 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) [2021-12-16 02:49:37,204 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:37,204 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:37,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 02:49:37,204 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1931954080, now seen corresponding path program 1 times [2021-12-16 02:49:37,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:37,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229073471] [2021-12-16 02:49:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:37,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:37,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229073471] [2021-12-16 02:49:37,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229073471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:37,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:37,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:49:37,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762772827] [2021-12-16 02:49:37,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:37,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:49:37,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:37,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:49:37,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:49:37,348 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2021-12-16 02:49:37,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 166 transitions, 845 flow. Second operand has 8 states, 8 states have (on average 110.75) internal successors, (886), 8 states have internal predecessors, (886), 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) [2021-12-16 02:49:37,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:37,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2021-12-16 02:49:37,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:39,095 INFO L129 PetriNetUnfolder]: 4595/9917 cut-off events. [2021-12-16 02:49:39,095 INFO L130 PetriNetUnfolder]: For 43875/46831 co-relation queries the response was YES. [2021-12-16 02:49:39,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41233 conditions, 9917 events. 4595/9917 cut-off events. For 43875/46831 co-relation queries the response was YES. Maximal size of possible extension queue 899. Compared 98396 event pairs, 129 based on Foata normal form. 416/9860 useless extension candidates. Maximal degree in co-relation 41147. Up to 3006 conditions per place. [2021-12-16 02:49:39,182 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 80 selfloop transitions, 48 changer transitions 41/270 dead transitions. [2021-12-16 02:49:39,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 270 transitions, 1935 flow [2021-12-16 02:49:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 02:49:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-16 02:49:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1876 transitions. [2021-12-16 02:49:39,187 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.881578947368421 [2021-12-16 02:49:39,187 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1876 transitions. [2021-12-16 02:49:39,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1876 transitions. [2021-12-16 02:49:39,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:39,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1876 transitions. [2021-12-16 02:49:39,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.25) internal successors, (1876), 16 states have internal predecessors, (1876), 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) [2021-12-16 02:49:39,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 133.0) internal successors, (2261), 17 states have internal predecessors, (2261), 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) [2021-12-16 02:49:39,196 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 133.0) internal successors, (2261), 17 states have internal predecessors, (2261), 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) [2021-12-16 02:49:39,196 INFO L186 Difference]: Start difference. First operand has 173 places, 166 transitions, 845 flow. Second operand 16 states and 1876 transitions. [2021-12-16 02:49:39,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 270 transitions, 1935 flow [2021-12-16 02:49:39,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 270 transitions, 1834 flow, removed 44 selfloop flow, removed 4 redundant places. [2021-12-16 02:49:39,638 INFO L242 Difference]: Finished difference. Result has 188 places, 176 transitions, 1090 flow [2021-12-16 02:49:39,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1090, PETRI_PLACES=188, PETRI_TRANSITIONS=176} [2021-12-16 02:49:39,639 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 48 predicate places. [2021-12-16 02:49:39,639 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 176 transitions, 1090 flow [2021-12-16 02:49:39,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 110.75) internal successors, (886), 8 states have internal predecessors, (886), 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) [2021-12-16 02:49:39,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:39,640 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:39,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 02:49:39,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:39,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:39,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1027473544, now seen corresponding path program 1 times [2021-12-16 02:49:39,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:39,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150644384] [2021-12-16 02:49:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:39,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:39,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:39,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150644384] [2021-12-16 02:49:39,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150644384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:39,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:39,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 02:49:39,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048192836] [2021-12-16 02:49:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:39,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 02:49:39,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:39,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 02:49:39,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 02:49:39,735 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 133 [2021-12-16 02:49:39,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 176 transitions, 1090 flow. Second operand has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2021-12-16 02:49:39,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:39,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 133 [2021-12-16 02:49:39,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:40,687 INFO L129 PetriNetUnfolder]: 1712/6530 cut-off events. [2021-12-16 02:49:40,688 INFO L130 PetriNetUnfolder]: For 30002/30525 co-relation queries the response was YES. [2021-12-16 02:49:40,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24225 conditions, 6530 events. 1712/6530 cut-off events. For 30002/30525 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 78260 event pairs, 56 based on Foata normal form. 14/6199 useless extension candidates. Maximal degree in co-relation 24130. Up to 1496 conditions per place. [2021-12-16 02:49:40,805 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 51 selfloop transitions, 18 changer transitions 35/245 dead transitions. [2021-12-16 02:49:40,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 245 transitions, 1722 flow [2021-12-16 02:49:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 02:49:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-16 02:49:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1550 transitions. [2021-12-16 02:49:40,809 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.832438238453276 [2021-12-16 02:49:40,809 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1550 transitions. [2021-12-16 02:49:40,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1550 transitions. [2021-12-16 02:49:40,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:40,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1550 transitions. [2021-12-16 02:49:40,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 110.71428571428571) internal successors, (1550), 14 states have internal predecessors, (1550), 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) [2021-12-16 02:49:40,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 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) [2021-12-16 02:49:40,832 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 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) [2021-12-16 02:49:40,832 INFO L186 Difference]: Start difference. First operand has 188 places, 176 transitions, 1090 flow. Second operand 14 states and 1550 transitions. [2021-12-16 02:49:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 245 transitions, 1722 flow [2021-12-16 02:49:41,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 245 transitions, 1401 flow, removed 127 selfloop flow, removed 14 redundant places. [2021-12-16 02:49:41,833 INFO L242 Difference]: Finished difference. Result has 193 places, 184 transitions, 971 flow [2021-12-16 02:49:41,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=971, PETRI_PLACES=193, PETRI_TRANSITIONS=184} [2021-12-16 02:49:41,834 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 53 predicate places. [2021-12-16 02:49:41,834 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 184 transitions, 971 flow [2021-12-16 02:49:41,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2021-12-16 02:49:41,835 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:41,835 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:41,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 02:49:41,835 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:41,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:41,836 INFO L85 PathProgramCache]: Analyzing trace with hash -262709006, now seen corresponding path program 2 times [2021-12-16 02:49:41,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:41,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771772901] [2021-12-16 02:49:41,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:41,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:41,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:41,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771772901] [2021-12-16 02:49:41,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771772901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:41,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:41,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 02:49:41,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296038384] [2021-12-16 02:49:41,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:41,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 02:49:41,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 02:49:41,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-16 02:49:41,932 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2021-12-16 02:49:41,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 184 transitions, 971 flow. Second operand has 9 states, 9 states have (on average 110.77777777777777) internal successors, (997), 9 states have internal predecessors, (997), 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) [2021-12-16 02:49:41,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:41,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2021-12-16 02:49:41,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:43,999 INFO L129 PetriNetUnfolder]: 5745/12526 cut-off events. [2021-12-16 02:49:44,000 INFO L130 PetriNetUnfolder]: For 48819/57585 co-relation queries the response was YES. [2021-12-16 02:49:44,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44458 conditions, 12526 events. 5745/12526 cut-off events. For 48819/57585 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 130477 event pairs, 73 based on Foata normal form. 410/12367 useless extension candidates. Maximal degree in co-relation 44419. Up to 1539 conditions per place. [2021-12-16 02:49:44,191 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 78 selfloop transitions, 51 changer transitions 40/277 dead transitions. [2021-12-16 02:49:44,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 277 transitions, 2052 flow [2021-12-16 02:49:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 02:49:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-16 02:49:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2194 transitions. [2021-12-16 02:49:44,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8682231895528294 [2021-12-16 02:49:44,196 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2194 transitions. [2021-12-16 02:49:44,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2194 transitions. [2021-12-16 02:49:44,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:44,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2194 transitions. [2021-12-16 02:49:44,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 115.47368421052632) internal successors, (2194), 19 states have internal predecessors, (2194), 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) [2021-12-16 02:49:44,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 133.0) internal successors, (2660), 20 states have internal predecessors, (2660), 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) [2021-12-16 02:49:44,205 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 133.0) internal successors, (2660), 20 states have internal predecessors, (2660), 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) [2021-12-16 02:49:44,205 INFO L186 Difference]: Start difference. First operand has 193 places, 184 transitions, 971 flow. Second operand 19 states and 2194 transitions. [2021-12-16 02:49:44,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 277 transitions, 2052 flow [2021-12-16 02:49:44,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 277 transitions, 1782 flow, removed 109 selfloop flow, removed 11 redundant places. [2021-12-16 02:49:44,671 INFO L242 Difference]: Finished difference. Result has 195 places, 181 transitions, 985 flow [2021-12-16 02:49:44,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=985, PETRI_PLACES=195, PETRI_TRANSITIONS=181} [2021-12-16 02:49:44,672 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 55 predicate places. [2021-12-16 02:49:44,673 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 181 transitions, 985 flow [2021-12-16 02:49:44,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.77777777777777) internal successors, (997), 9 states have internal predecessors, (997), 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) [2021-12-16 02:49:44,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:44,673 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:44,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 02:49:44,674 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash 807082160, now seen corresponding path program 1 times [2021-12-16 02:49:44,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:44,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859626815] [2021-12-16 02:49:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:44,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:44,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:44,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859626815] [2021-12-16 02:49:44,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859626815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:44,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:44,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:49:44,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140668881] [2021-12-16 02:49:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:44,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:49:44,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:44,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:49:44,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:49:44,831 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 133 [2021-12-16 02:49:44,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 181 transitions, 985 flow. Second operand has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2021-12-16 02:49:44,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:44,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 133 [2021-12-16 02:49:44,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:45,868 INFO L129 PetriNetUnfolder]: 2790/10261 cut-off events. [2021-12-16 02:49:45,869 INFO L130 PetriNetUnfolder]: For 22301/22959 co-relation queries the response was YES. [2021-12-16 02:49:45,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31958 conditions, 10261 events. 2790/10261 cut-off events. For 22301/22959 co-relation queries the response was YES. Maximal size of possible extension queue 1236. Compared 137793 event pairs, 21 based on Foata normal form. 1/9671 useless extension candidates. Maximal degree in co-relation 31862. Up to 1086 conditions per place. [2021-12-16 02:49:45,985 INFO L132 encePairwiseOnDemand]: 122/133 looper letters, 35 selfloop transitions, 17 changer transitions 38/229 dead transitions. [2021-12-16 02:49:45,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 229 transitions, 1487 flow [2021-12-16 02:49:45,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:49:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:49:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 997 transitions. [2021-12-16 02:49:45,987 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8329156223893066 [2021-12-16 02:49:45,987 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 997 transitions. [2021-12-16 02:49:45,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 997 transitions. [2021-12-16 02:49:45,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:45,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 997 transitions. [2021-12-16 02:49:45,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.77777777777777) internal successors, (997), 9 states have internal predecessors, (997), 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) [2021-12-16 02:49:45,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:45,991 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 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) [2021-12-16 02:49:45,992 INFO L186 Difference]: Start difference. First operand has 195 places, 181 transitions, 985 flow. Second operand 9 states and 997 transitions. [2021-12-16 02:49:45,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 229 transitions, 1487 flow [2021-12-16 02:49:46,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 229 transitions, 1327 flow, removed 43 selfloop flow, removed 16 redundant places. [2021-12-16 02:49:46,775 INFO L242 Difference]: Finished difference. Result has 189 places, 181 transitions, 932 flow [2021-12-16 02:49:46,776 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=932, PETRI_PLACES=189, PETRI_TRANSITIONS=181} [2021-12-16 02:49:46,776 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 49 predicate places. [2021-12-16 02:49:46,776 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 181 transitions, 932 flow [2021-12-16 02:49:46,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2021-12-16 02:49:46,777 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:46,777 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:46,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 02:49:46,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:46,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1608768664, now seen corresponding path program 2 times [2021-12-16 02:49:46,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:46,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332081545] [2021-12-16 02:49:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:46,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:49:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:49:46,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:49:46,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332081545] [2021-12-16 02:49:46,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332081545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:49:46,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:49:46,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 02:49:46,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679610540] [2021-12-16 02:49:46,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:49:46,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 02:49:46,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:49:46,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 02:49:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 02:49:46,871 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2021-12-16 02:49:46,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 181 transitions, 932 flow. Second operand has 7 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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) [2021-12-16 02:49:46,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:49:46,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2021-12-16 02:49:46,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:49:47,577 INFO L129 PetriNetUnfolder]: 2017/7537 cut-off events. [2021-12-16 02:49:47,577 INFO L130 PetriNetUnfolder]: For 11569/11759 co-relation queries the response was YES. [2021-12-16 02:49:47,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20843 conditions, 7537 events. 2017/7537 cut-off events. For 11569/11759 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 96453 event pairs, 38 based on Foata normal form. 1/7120 useless extension candidates. Maximal degree in co-relation 20810. Up to 802 conditions per place. [2021-12-16 02:49:47,642 INFO L132 encePairwiseOnDemand]: 124/133 looper letters, 23 selfloop transitions, 8 changer transitions 26/196 dead transitions. [2021-12-16 02:49:47,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 196 transitions, 1106 flow [2021-12-16 02:49:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 02:49:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 02:49:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 783 transitions. [2021-12-16 02:49:47,644 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.841031149301826 [2021-12-16 02:49:47,644 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 783 transitions. [2021-12-16 02:49:47,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 783 transitions. [2021-12-16 02:49:47,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:49:47,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 783 transitions. [2021-12-16 02:49:47,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.85714285714286) internal successors, (783), 7 states have internal predecessors, (783), 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) [2021-12-16 02:49:47,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 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) [2021-12-16 02:49:47,647 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 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) [2021-12-16 02:49:47,647 INFO L186 Difference]: Start difference. First operand has 189 places, 181 transitions, 932 flow. Second operand 7 states and 783 transitions. [2021-12-16 02:49:47,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 196 transitions, 1106 flow [2021-12-16 02:49:48,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 196 transitions, 1061 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-12-16 02:49:48,005 INFO L242 Difference]: Finished difference. Result has 189 places, 169 transitions, 816 flow [2021-12-16 02:49:48,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=816, PETRI_PLACES=189, PETRI_TRANSITIONS=169} [2021-12-16 02:49:48,006 INFO L334 CegarLoopForPetriNet]: 140 programPoint places, 49 predicate places. [2021-12-16 02:49:48,006 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 169 transitions, 816 flow [2021-12-16 02:49:48,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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) [2021-12-16 02:49:48,006 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:49:48,007 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:48,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 02:49:48,007 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-16 02:49:48,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:49:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash 759287410, now seen corresponding path program 3 times [2021-12-16 02:49:48,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:49:48,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388958865] [2021-12-16 02:49:48,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:49:48,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:49:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 02:49:48,039 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 02:49:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 02:49:48,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 02:49:48,101 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 02:49:48,102 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-12-16 02:49:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-16 02:49:48,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-12-16 02:49:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2021-12-16 02:49:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2021-12-16 02:49:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 7 remaining) [2021-12-16 02:49:48,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-16 02:49:48,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 02:49:48,107 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2021-12-16 02:49:48,110 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-16 02:49:48,110 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 02:49:48,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:49:48 BasicIcfg [2021-12-16 02:49:48,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 02:49:48,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 02:49:48,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 02:49:48,213 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 02:49:48,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:49:31" (3/4) ... [2021-12-16 02:49:48,215 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-16 02:49:48,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 02:49:48,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 02:49:48,293 INFO L158 Benchmark]: Toolchain (without parser) took 17704.49ms. Allocated memory was 96.5MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 62.1MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2021-12-16 02:49:48,293 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 02:49:48,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.0MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 02:49:48,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.68ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 02:49:48,294 INFO L158 Benchmark]: Boogie Preprocessor took 60.21ms. Allocated memory is still 96.5MB. Free memory was 56.9MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 02:49:48,294 INFO L158 Benchmark]: RCFGBuilder took 772.39ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 54.9MB in the beginning and 62.5MB in the end (delta: -7.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-12-16 02:49:48,295 INFO L158 Benchmark]: TraceAbstraction took 16286.96ms. Allocated memory was 121.6MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 61.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2021-12-16 02:49:48,295 INFO L158 Benchmark]: Witness Printer took 80.23ms. Allocated memory is still 2.7GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-12-16 02:49:48,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.26ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.0MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.68ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.21ms. Allocated memory is still 96.5MB. Free memory was 56.9MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.39ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 54.9MB in the beginning and 62.5MB in the end (delta: -7.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16286.96ms. Allocated memory was 121.6MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 61.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 80.23ms. Allocated memory is still 2.7GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L714] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0] [L716] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0] [L719] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0] [L720] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L722] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L724] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L726] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L727] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L728] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L729] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L730] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L731] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L732] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L733] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L734] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L735] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L736] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L737] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L738] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L739] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L740] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L741] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L742] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L743] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L744] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L745] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L746] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1365; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1365={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] FCALL, FORK 0 pthread_create(&t1365, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1365, ((void *)0), P0, ((void *)0))=-3, t1365={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1366; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1365={5:0}, t1366={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] FCALL, FORK 0 pthread_create(&t1366, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1366, ((void *)0), P1, ((void *)0))=-2, t1365={5:0}, t1366={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1367; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1365={5:0}, t1366={6:0}, t1367={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L851] FCALL, FORK 0 pthread_create(&t1367, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1367, ((void *)0), P2, ((void *)0))=-1, t1365={5:0}, t1366={6:0}, t1367={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1368; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1365={5:0}, t1366={6:0}, t1367={7:0}, t1368={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L853] FCALL, FORK 0 pthread_create(&t1368, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1368, ((void *)0), P3, ((void *)0))=0, t1365={5:0}, t1366={6:0}, t1367={7:0}, t1368={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L808] 4 z$w_buff1 = z$w_buff0 [L809] 4 z$w_buff0 = 1 [L810] 4 z$w_buff1_used = z$w_buff0_used [L811] 4 z$w_buff0_used = (_Bool)1 [L812] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L812] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L813] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L814] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L815] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L816] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L817] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L818] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L768] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L780] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L783] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L784] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L785] 3 z$flush_delayed = weak$$choice2 [L786] 3 z$mem_tmp = z [L787] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L787] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L788] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L788] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L789] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L789] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L790] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L790] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L791] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L791] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L792] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L792] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L793] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L793] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 __unbuffered_p2_EAX = z [L795] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L795] 3 z = z$flush_delayed ? z$mem_tmp : z [L796] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L801] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1365={5:0}, t1366={6:0}, t1367={7:0}, t1368={3:0}, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L857] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L857] RET 0 assume_abort_if_not(main$tmp_guard0) [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L866] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1365={5:0}, t1366={6:0}, t1367={7:0}, t1368={3:0}, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L868] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 166 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 690 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 690 mSDsluCounter, 515 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 918 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1175 IncrementalHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 117 mSDtfsCounter, 1175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1090occurred in iteration=6, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1013 NumberOfCodeBlocks, 1013 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 3327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-12-16 02:49:48,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE