./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix040.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/mix040.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 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 21:23:41,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:23:41,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:23:41,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:23:41,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:23:41,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:23:41,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:23:41,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:23:41,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:23:41,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:23:41,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:23:41,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:23:41,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:23:41,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:23:41,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:23:41,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:23:41,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:23:41,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:23:41,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:23:41,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:23:41,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:23:41,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:23:41,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:23:41,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:23:41,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:23:41,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:23:41,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:23:41,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:23:41,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:23:41,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:23:41,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:23:41,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:23:41,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:23:41,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:23:41,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:23:41,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:23:41,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:23:41,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:23:41,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:23:41,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:23:41,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:23:41,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:23:41,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:23:41,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:23:41,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:23:41,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:23:41,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:23:41,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:23:41,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:23:41,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:23:41,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:23:41,419 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:23:41,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:23:41,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:23:41,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:23:41,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:23:41,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:23:41,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:23:41,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:23:41,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:23:41,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:23:41,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:23:41,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:23:41,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:23:41,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:23:41,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:23:41,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:23:41,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:23:41,425 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:23:41,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:23:41,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:23:41,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2022-07-22 21:23:41,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:23:41,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:23:41,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:23:41,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:23:41,667 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:23:41,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-07-22 21:23:41,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd7865040/d82aae8902fd46edbc4cb3b4606d1a0e/FLAGf14fc531e [2022-07-22 21:23:42,292 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:23:42,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-07-22 21:23:42,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd7865040/d82aae8902fd46edbc4cb3b4606d1a0e/FLAGf14fc531e [2022-07-22 21:23:42,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd7865040/d82aae8902fd46edbc4cb3b4606d1a0e [2022-07-22 21:23:42,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:23:42,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:23:42,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:23:42,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:23:42,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:23:42,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:23:42" (1/1) ... [2022-07-22 21:23:42,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2e079f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:42, skipping insertion in model container [2022-07-22 21:23:42,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:23:42" (1/1) ... [2022-07-22 21:23:42,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:23:42,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:23:42,888 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/mix040.opt.i[944,957] [2022-07-22 21:23:43,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:23:43,047 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:23:43,056 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/mix040.opt.i[944,957] [2022-07-22 21:23:43,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:23:43,144 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:23:43,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43 WrapperNode [2022-07-22 21:23:43,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:23:43,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:23:43,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:23:43,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:23:43,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,212 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 199 [2022-07-22 21:23:43,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:23:43,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:23:43,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:23:43,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:23:43,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:23:43,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:23:43,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:23:43,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:23:43,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (1/1) ... [2022-07-22 21:23:43,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:23:43,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:23:43,276 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) [2022-07-22 21:23:43,279 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 [2022-07-22 21:23:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:23:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 21:23:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:23:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:23:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:23:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-07-22 21:23:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-07-22 21:23:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-07-22 21:23:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-07-22 21:23:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-07-22 21:23:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-07-22 21:23:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-07-22 21:23:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-07-22 21:23:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:23:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 21:23:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:23:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:23:43,305 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:23:43,390 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:23:43,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:23:43,808 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:23:44,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:23:44,012 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:23:44,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:23:44 BoogieIcfgContainer [2022-07-22 21:23:44,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:23:44,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:23:44,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:23:44,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:23:44,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:23:42" (1/3) ... [2022-07-22 21:23:44,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34023056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:23:44, skipping insertion in model container [2022-07-22 21:23:44,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:23:43" (2/3) ... [2022-07-22 21:23:44,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34023056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:23:44, skipping insertion in model container [2022-07-22 21:23:44,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:23:44" (3/3) ... [2022-07-22 21:23:44,022 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2022-07-22 21:23:44,026 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:23:44,032 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:23:44,032 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 21:23:44,032 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:23:44,086 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 21:23:44,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-07-22 21:23:44,201 INFO L129 PetriNetUnfolder]: 2/132 cut-off events. [2022-07-22 21:23:44,204 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:23:44,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-07-22 21:23:44,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2022-07-22 21:23:44,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2022-07-22 21:23:44,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:23:44,228 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d06cd4d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@39bcd3a0 [2022-07-22 21:23:44,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-22 21:23:44,256 INFO L129 PetriNetUnfolder]: 0/90 cut-off events. [2022-07-22 21:23:44,256 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:23:44,271 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:44,272 INFO L200 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] [2022-07-22 21:23:44,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:44,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:44,276 INFO L85 PathProgramCache]: Analyzing trace with hash 654708956, now seen corresponding path program 1 times [2022-07-22 21:23:44,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:44,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460998305] [2022-07-22 21:23:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:44,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:44,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460998305] [2022-07-22 21:23:44,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460998305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:44,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:44,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 21:23:44,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417571336] [2022-07-22 21:23:44,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:44,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 21:23:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 21:23:44,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 21:23:44,515 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 136 [2022-07-22 21:23:44,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2022-07-22 21:23:44,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:44,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 136 [2022-07-22 21:23:44,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:44,579 INFO L129 PetriNetUnfolder]: 10/170 cut-off events. [2022-07-22 21:23:44,579 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-07-22 21:23:44,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 170 events. 10/170 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 253 event pairs, 2 based on Foata normal form. 6/169 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2022-07-22 21:23:44,582 INFO L132 encePairwiseOnDemand]: 131/136 looper letters, 9 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2022-07-22 21:23:44,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 130 transitions, 294 flow [2022-07-22 21:23:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 21:23:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-22 21:23:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-07-22 21:23:44,597 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9436274509803921 [2022-07-22 21:23:44,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-07-22 21:23:44,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-07-22 21:23:44,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:44,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-07-22 21:23:44,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-07-22 21:23:44,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-07-22 21:23:44,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-07-22 21:23:44,614 INFO L186 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 385 transitions. [2022-07-22 21:23:44,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 130 transitions, 294 flow [2022-07-22 21:23:44,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 290 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-22 21:23:44,622 INFO L242 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2022-07-22 21:23:44,624 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2022-07-22 21:23:44,628 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2022-07-22 21:23:44,628 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2022-07-22 21:23:44,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2022-07-22 21:23:44,629 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:44,629 INFO L200 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] [2022-07-22 21:23:44,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:23:44,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:44,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1854054527, now seen corresponding path program 1 times [2022-07-22 21:23:44,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:44,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257317994] [2022-07-22 21:23:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:44,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:44,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:44,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257317994] [2022-07-22 21:23:44,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257317994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:44,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:44,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:23:44,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198474269] [2022-07-22 21:23:44,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:44,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:23:44,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:23:44,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:23:44,925 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2022-07-22 21:23:44,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2022-07-22 21:23:44,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:44,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2022-07-22 21:23:44,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:46,121 INFO L129 PetriNetUnfolder]: 3270/8009 cut-off events. [2022-07-22 21:23:46,122 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-07-22 21:23:46,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12917 conditions, 8009 events. 3270/8009 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 74136 event pairs, 426 based on Foata normal form. 0/7836 useless extension candidates. Maximal degree in co-relation 12856. Up to 1496 conditions per place. [2022-07-22 21:23:46,162 INFO L132 encePairwiseOnDemand]: 124/136 looper letters, 35 selfloop transitions, 8 changer transitions 92/224 dead transitions. [2022-07-22 21:23:46,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 224 transitions, 710 flow [2022-07-22 21:23:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:23:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:23:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1503 transitions. [2022-07-22 21:23:46,166 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8501131221719457 [2022-07-22 21:23:46,166 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1503 transitions. [2022-07-22 21:23:46,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1503 transitions. [2022-07-22 21:23:46,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:46,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1503 transitions. [2022-07-22 21:23:46,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.61538461538461) internal successors, (1503), 13 states have internal predecessors, (1503), 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) [2022-07-22 21:23:46,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:46,173 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:46,173 INFO L186 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1503 transitions. [2022-07-22 21:23:46,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 224 transitions, 710 flow [2022-07-22 21:23:46,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 224 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-22 21:23:46,177 INFO L242 Difference]: Finished difference. Result has 161 places, 120 transitions, 350 flow [2022-07-22 21:23:46,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=161, PETRI_TRANSITIONS=120} [2022-07-22 21:23:46,177 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2022-07-22 21:23:46,178 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 120 transitions, 350 flow [2022-07-22 21:23:46,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2022-07-22 21:23:46,178 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:46,178 INFO L200 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] [2022-07-22 21:23:46,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:23:46,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1676858978, now seen corresponding path program 1 times [2022-07-22 21:23:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:46,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984736985] [2022-07-22 21:23:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:46,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:46,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:46,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984736985] [2022-07-22 21:23:46,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984736985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:46,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:46,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:23:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882730675] [2022-07-22 21:23:46,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:46,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:23:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:23:46,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:23:46,322 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2022-07-22 21:23:46,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 120 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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) [2022-07-22 21:23:46,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:46,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2022-07-22 21:23:46,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:47,073 INFO L129 PetriNetUnfolder]: 2117/4327 cut-off events. [2022-07-22 21:23:47,073 INFO L130 PetriNetUnfolder]: For 11526/11538 co-relation queries the response was YES. [2022-07-22 21:23:47,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15084 conditions, 4327 events. 2117/4327 cut-off events. For 11526/11538 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 31787 event pairs, 444 based on Foata normal form. 87/4278 useless extension candidates. Maximal degree in co-relation 15011. Up to 1261 conditions per place. [2022-07-22 21:23:47,108 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 41 selfloop transitions, 18 changer transitions 70/218 dead transitions. [2022-07-22 21:23:47,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 1288 flow [2022-07-22 21:23:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:23:47,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:23:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1504 transitions. [2022-07-22 21:23:47,112 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8506787330316742 [2022-07-22 21:23:47,112 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1504 transitions. [2022-07-22 21:23:47,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1504 transitions. [2022-07-22 21:23:47,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:47,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1504 transitions. [2022-07-22 21:23:47,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.6923076923077) internal successors, (1504), 13 states have internal predecessors, (1504), 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) [2022-07-22 21:23:47,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:47,119 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:47,119 INFO L186 Difference]: Start difference. First operand has 161 places, 120 transitions, 350 flow. Second operand 13 states and 1504 transitions. [2022-07-22 21:23:47,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 1288 flow [2022-07-22 21:23:47,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 218 transitions, 1260 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-07-22 21:23:47,135 INFO L242 Difference]: Finished difference. Result has 158 places, 129 transitions, 527 flow [2022-07-22 21:23:47,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=527, PETRI_PLACES=158, PETRI_TRANSITIONS=129} [2022-07-22 21:23:47,136 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 15 predicate places. [2022-07-22 21:23:47,136 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 129 transitions, 527 flow [2022-07-22 21:23:47,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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) [2022-07-22 21:23:47,137 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:47,137 INFO L200 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] [2022-07-22 21:23:47,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 21:23:47,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 675431259, now seen corresponding path program 1 times [2022-07-22 21:23:47,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848172786] [2022-07-22 21:23:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:47,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:47,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848172786] [2022-07-22 21:23:47,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848172786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:47,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:47,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:23:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585973293] [2022-07-22 21:23:47,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:47,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:23:47,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:47,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:23:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:23:47,236 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2022-07-22 21:23:47,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 129 transitions, 527 flow. Second operand has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 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) [2022-07-22 21:23:47,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:47,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2022-07-22 21:23:47,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:48,125 INFO L129 PetriNetUnfolder]: 1733/3876 cut-off events. [2022-07-22 21:23:48,125 INFO L130 PetriNetUnfolder]: For 18744/18752 co-relation queries the response was YES. [2022-07-22 21:23:48,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15838 conditions, 3876 events. 1733/3876 cut-off events. For 18744/18752 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 29225 event pairs, 318 based on Foata normal form. 70/3795 useless extension candidates. Maximal degree in co-relation 15751. Up to 1027 conditions per place. [2022-07-22 21:23:48,176 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 47 selfloop transitions, 24 changer transitions 76/236 dead transitions. [2022-07-22 21:23:48,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 236 transitions, 1811 flow [2022-07-22 21:23:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:23:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:23:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1499 transitions. [2022-07-22 21:23:48,179 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8478506787330317 [2022-07-22 21:23:48,179 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1499 transitions. [2022-07-22 21:23:48,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1499 transitions. [2022-07-22 21:23:48,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:48,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1499 transitions. [2022-07-22 21:23:48,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.3076923076923) internal successors, (1499), 13 states have internal predecessors, (1499), 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) [2022-07-22 21:23:48,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:48,185 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:48,185 INFO L186 Difference]: Start difference. First operand has 158 places, 129 transitions, 527 flow. Second operand 13 states and 1499 transitions. [2022-07-22 21:23:48,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 236 transitions, 1811 flow [2022-07-22 21:23:48,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 236 transitions, 1727 flow, removed 42 selfloop flow, removed 9 redundant places. [2022-07-22 21:23:48,206 INFO L242 Difference]: Finished difference. Result has 164 places, 143 transitions, 820 flow [2022-07-22 21:23:48,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=820, PETRI_PLACES=164, PETRI_TRANSITIONS=143} [2022-07-22 21:23:48,207 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 21 predicate places. [2022-07-22 21:23:48,207 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 143 transitions, 820 flow [2022-07-22 21:23:48,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 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) [2022-07-22 21:23:48,208 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:48,208 INFO L200 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] [2022-07-22 21:23:48,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 21:23:48,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1171744073, now seen corresponding path program 1 times [2022-07-22 21:23:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:48,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594282077] [2022-07-22 21:23:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:48,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:48,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594282077] [2022-07-22 21:23:48,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594282077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:48,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:48,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:23:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109349491] [2022-07-22 21:23:48,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:48,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:23:48,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:48,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:23:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:23:48,293 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2022-07-22 21:23:48,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 143 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2022-07-22 21:23:48,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:48,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2022-07-22 21:23:48,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:48,828 INFO L129 PetriNetUnfolder]: 1125/3032 cut-off events. [2022-07-22 21:23:48,828 INFO L130 PetriNetUnfolder]: For 20771/21552 co-relation queries the response was YES. [2022-07-22 21:23:48,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12764 conditions, 3032 events. 1125/3032 cut-off events. For 20771/21552 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 24802 event pairs, 353 based on Foata normal form. 263/3164 useless extension candidates. Maximal degree in co-relation 12670. Up to 811 conditions per place. [2022-07-22 21:23:48,855 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 31 selfloop transitions, 8 changer transitions 33/186 dead transitions. [2022-07-22 21:23:48,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 186 transitions, 1392 flow [2022-07-22 21:23:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 21:23:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-22 21:23:48,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1078 transitions. [2022-07-22 21:23:48,858 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.880718954248366 [2022-07-22 21:23:48,858 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1078 transitions. [2022-07-22 21:23:48,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1078 transitions. [2022-07-22 21:23:48,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:48,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1078 transitions. [2022-07-22 21:23:48,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.77777777777777) internal successors, (1078), 9 states have internal predecessors, (1078), 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) [2022-07-22 21:23:48,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:23:48,862 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:23:48,862 INFO L186 Difference]: Start difference. First operand has 164 places, 143 transitions, 820 flow. Second operand 9 states and 1078 transitions. [2022-07-22 21:23:48,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 186 transitions, 1392 flow [2022-07-22 21:23:48,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 186 transitions, 1344 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-07-22 21:23:48,885 INFO L242 Difference]: Finished difference. Result has 170 places, 142 transitions, 826 flow [2022-07-22 21:23:48,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=826, PETRI_PLACES=170, PETRI_TRANSITIONS=142} [2022-07-22 21:23:48,886 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2022-07-22 21:23:48,887 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 142 transitions, 826 flow [2022-07-22 21:23:48,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2022-07-22 21:23:48,887 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:48,887 INFO L200 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] [2022-07-22 21:23:48,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 21:23:48,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1060551868, now seen corresponding path program 1 times [2022-07-22 21:23:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:48,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823855766] [2022-07-22 21:23:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:48,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:48,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823855766] [2022-07-22 21:23:48,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823855766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:48,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:48,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:23:48,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124603447] [2022-07-22 21:23:48,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:48,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:23:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:23:48,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:23:48,959 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-07-22 21:23:48,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 142 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2022-07-22 21:23:48,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:48,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-07-22 21:23:48,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:51,698 INFO L129 PetriNetUnfolder]: 10819/19805 cut-off events. [2022-07-22 21:23:51,698 INFO L130 PetriNetUnfolder]: For 54177/68655 co-relation queries the response was YES. [2022-07-22 21:23:51,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54193 conditions, 19805 events. 10819/19805 cut-off events. For 54177/68655 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 182442 event pairs, 625 based on Foata normal form. 442/18625 useless extension candidates. Maximal degree in co-relation 54123. Up to 6788 conditions per place. [2022-07-22 21:23:52,050 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 67 selfloop transitions, 20 changer transitions 10/217 dead transitions. [2022-07-22 21:23:52,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 217 transitions, 1442 flow [2022-07-22 21:23:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 21:23:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-22 21:23:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1203 transitions. [2022-07-22 21:23:52,053 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8845588235294117 [2022-07-22 21:23:52,054 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1203 transitions. [2022-07-22 21:23:52,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1203 transitions. [2022-07-22 21:23:52,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:52,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1203 transitions. [2022-07-22 21:23:52,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.3) internal successors, (1203), 10 states have internal predecessors, (1203), 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) [2022-07-22 21:23:52,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-07-22 21:23:52,060 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-07-22 21:23:52,061 INFO L186 Difference]: Start difference. First operand has 170 places, 142 transitions, 826 flow. Second operand 10 states and 1203 transitions. [2022-07-22 21:23:52,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 217 transitions, 1442 flow [2022-07-22 21:23:52,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 217 transitions, 1400 flow, removed 17 selfloop flow, removed 14 redundant places. [2022-07-22 21:23:52,106 INFO L242 Difference]: Finished difference. Result has 165 places, 160 transitions, 927 flow [2022-07-22 21:23:52,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=927, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2022-07-22 21:23:52,108 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 22 predicate places. [2022-07-22 21:23:52,109 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 927 flow [2022-07-22 21:23:52,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2022-07-22 21:23:52,110 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:52,110 INFO L200 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] [2022-07-22 21:23:52,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 21:23:52,110 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1240162531, now seen corresponding path program 1 times [2022-07-22 21:23:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:52,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149415461] [2022-07-22 21:23:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149415461] [2022-07-22 21:23:52,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149415461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:52,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:52,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:23:52,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87359199] [2022-07-22 21:23:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:52,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:23:52,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:23:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:23:52,224 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2022-07-22 21:23:52,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 927 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2022-07-22 21:23:52,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:52,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2022-07-22 21:23:52,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:53,842 INFO L129 PetriNetUnfolder]: 3388/11715 cut-off events. [2022-07-22 21:23:53,842 INFO L130 PetriNetUnfolder]: For 27538/31962 co-relation queries the response was YES. [2022-07-22 21:23:53,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35315 conditions, 11715 events. 3388/11715 cut-off events. For 27538/31962 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 145901 event pairs, 1323 based on Foata normal form. 389/11000 useless extension candidates. Maximal degree in co-relation 35218. Up to 3477 conditions per place. [2022-07-22 21:23:53,954 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 50 selfloop transitions, 22 changer transitions 0/200 dead transitions. [2022-07-22 21:23:53,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 200 transitions, 1391 flow [2022-07-22 21:23:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 21:23:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-22 21:23:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1079 transitions. [2022-07-22 21:23:53,957 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8815359477124183 [2022-07-22 21:23:53,957 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1079 transitions. [2022-07-22 21:23:53,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1079 transitions. [2022-07-22 21:23:53,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:53,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1079 transitions. [2022-07-22 21:23:53,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.88888888888889) internal successors, (1079), 9 states have internal predecessors, (1079), 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) [2022-07-22 21:23:53,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:23:53,961 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:23:53,961 INFO L186 Difference]: Start difference. First operand has 165 places, 160 transitions, 927 flow. Second operand 9 states and 1079 transitions. [2022-07-22 21:23:53,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 200 transitions, 1391 flow [2022-07-22 21:23:54,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 200 transitions, 1369 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-07-22 21:23:54,029 INFO L242 Difference]: Finished difference. Result has 177 places, 168 transitions, 1077 flow [2022-07-22 21:23:54,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1077, PETRI_PLACES=177, PETRI_TRANSITIONS=168} [2022-07-22 21:23:54,030 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 34 predicate places. [2022-07-22 21:23:54,030 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 168 transitions, 1077 flow [2022-07-22 21:23:54,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2022-07-22 21:23:54,031 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:54,031 INFO L200 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] [2022-07-22 21:23:54,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 21:23:54,032 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1415249773, now seen corresponding path program 1 times [2022-07-22 21:23:54,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:54,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532020525] [2022-07-22 21:23:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:54,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:54,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:54,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:54,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532020525] [2022-07-22 21:23:54,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532020525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:54,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:54,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:23:54,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580463137] [2022-07-22 21:23:54,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:54,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:23:54,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:54,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:23:54,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:23:54,134 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-07-22 21:23:54,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 168 transitions, 1077 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2022-07-22 21:23:54,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:54,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-07-22 21:23:54,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:23:58,171 INFO L129 PetriNetUnfolder]: 15300/29240 cut-off events. [2022-07-22 21:23:58,171 INFO L130 PetriNetUnfolder]: For 107752/128134 co-relation queries the response was YES. [2022-07-22 21:23:58,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109755 conditions, 29240 events. 15300/29240 cut-off events. For 107752/128134 co-relation queries the response was YES. Maximal size of possible extension queue 2308. Compared 299965 event pairs, 319 based on Foata normal form. 1595/29382 useless extension candidates. Maximal degree in co-relation 109653. Up to 9751 conditions per place. [2022-07-22 21:23:58,506 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 95 selfloop transitions, 38 changer transitions 4/265 dead transitions. [2022-07-22 21:23:58,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 265 transitions, 2131 flow [2022-07-22 21:23:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:23:58,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:23:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1567 transitions. [2022-07-22 21:23:58,509 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8863122171945701 [2022-07-22 21:23:58,510 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1567 transitions. [2022-07-22 21:23:58,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1567 transitions. [2022-07-22 21:23:58,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:23:58,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1567 transitions. [2022-07-22 21:23:58,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 120.53846153846153) internal successors, (1567), 13 states have internal predecessors, (1567), 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) [2022-07-22 21:23:58,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:58,515 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-07-22 21:23:58,515 INFO L186 Difference]: Start difference. First operand has 177 places, 168 transitions, 1077 flow. Second operand 13 states and 1567 transitions. [2022-07-22 21:23:58,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 265 transitions, 2131 flow [2022-07-22 21:23:59,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 265 transitions, 2107 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-07-22 21:23:59,005 INFO L242 Difference]: Finished difference. Result has 194 places, 188 transitions, 1346 flow [2022-07-22 21:23:59,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1346, PETRI_PLACES=194, PETRI_TRANSITIONS=188} [2022-07-22 21:23:59,006 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 51 predicate places. [2022-07-22 21:23:59,006 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 188 transitions, 1346 flow [2022-07-22 21:23:59,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2022-07-22 21:23:59,006 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:23:59,007 INFO L200 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] [2022-07-22 21:23:59,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 21:23:59,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:23:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:23:59,007 INFO L85 PathProgramCache]: Analyzing trace with hash -980132774, now seen corresponding path program 1 times [2022-07-22 21:23:59,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:23:59,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490938712] [2022-07-22 21:23:59,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:23:59,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:23:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:23:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:23:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:23:59,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490938712] [2022-07-22 21:23:59,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490938712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:23:59,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:23:59,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 21:23:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657831925] [2022-07-22 21:23:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:23:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 21:23:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:23:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 21:23:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-22 21:23:59,093 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-07-22 21:23:59,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 188 transitions, 1346 flow. Second operand has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2022-07-22 21:23:59,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:23:59,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-07-22 21:23:59,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:24:03,598 INFO L129 PetriNetUnfolder]: 14589/28717 cut-off events. [2022-07-22 21:24:03,598 INFO L130 PetriNetUnfolder]: For 175462/197982 co-relation queries the response was YES. [2022-07-22 21:24:03,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133864 conditions, 28717 events. 14589/28717 cut-off events. For 175462/197982 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 304960 event pairs, 234 based on Foata normal form. 1950/29274 useless extension candidates. Maximal degree in co-relation 133754. Up to 9163 conditions per place. [2022-07-22 21:24:03,973 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 89 selfloop transitions, 58 changer transitions 35/302 dead transitions. [2022-07-22 21:24:03,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 302 transitions, 2758 flow [2022-07-22 21:24:03,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 21:24:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-22 21:24:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1930 transitions. [2022-07-22 21:24:03,978 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8869485294117647 [2022-07-22 21:24:03,978 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1930 transitions. [2022-07-22 21:24:03,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1930 transitions. [2022-07-22 21:24:03,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:24:03,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1930 transitions. [2022-07-22 21:24:03,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 120.625) internal successors, (1930), 16 states have internal predecessors, (1930), 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) [2022-07-22 21:24:03,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2022-07-22 21:24:03,985 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 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) [2022-07-22 21:24:03,986 INFO L186 Difference]: Start difference. First operand has 194 places, 188 transitions, 1346 flow. Second operand 16 states and 1930 transitions. [2022-07-22 21:24:03,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 302 transitions, 2758 flow [2022-07-22 21:24:08,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 302 transitions, 2637 flow, removed 48 selfloop flow, removed 5 redundant places. [2022-07-22 21:24:08,143 INFO L242 Difference]: Finished difference. Result has 208 places, 206 transitions, 1604 flow [2022-07-22 21:24:08,144 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1604, PETRI_PLACES=208, PETRI_TRANSITIONS=206} [2022-07-22 21:24:08,144 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 65 predicate places. [2022-07-22 21:24:08,144 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 206 transitions, 1604 flow [2022-07-22 21:24:08,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2022-07-22 21:24:08,145 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:24:08,145 INFO L200 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] [2022-07-22 21:24:08,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 21:24:08,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:24:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:24:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash -838975738, now seen corresponding path program 1 times [2022-07-22 21:24:08,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:24:08,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423089804] [2022-07-22 21:24:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:24:08,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:24:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:24:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:24:08,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:24:08,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423089804] [2022-07-22 21:24:08,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423089804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:24:08,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:24:08,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 21:24:08,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711253312] [2022-07-22 21:24:08,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:24:08,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 21:24:08,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:24:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 21:24:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 21:24:08,232 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-07-22 21:24:08,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 206 transitions, 1604 flow. Second operand has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2022-07-22 21:24:08,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:24:08,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-07-22 21:24:08,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:24:12,233 INFO L129 PetriNetUnfolder]: 14114/28033 cut-off events. [2022-07-22 21:24:12,233 INFO L130 PetriNetUnfolder]: For 184992/205521 co-relation queries the response was YES. [2022-07-22 21:24:12,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129574 conditions, 28033 events. 14114/28033 cut-off events. For 184992/205521 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 301299 event pairs, 230 based on Foata normal form. 1511/28155 useless extension candidates. Maximal degree in co-relation 129529. Up to 5706 conditions per place. [2022-07-22 21:24:12,767 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 63 selfloop transitions, 61 changer transitions 55/299 dead transitions. [2022-07-22 21:24:12,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 299 transitions, 2771 flow [2022-07-22 21:24:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 21:24:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-22 21:24:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2257 transitions. [2022-07-22 21:24:12,771 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8734520123839009 [2022-07-22 21:24:12,772 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2257 transitions. [2022-07-22 21:24:12,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2257 transitions. [2022-07-22 21:24:12,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:24:12,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2257 transitions. [2022-07-22 21:24:12,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 118.78947368421052) internal successors, (2257), 19 states have internal predecessors, (2257), 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) [2022-07-22 21:24:12,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2022-07-22 21:24:12,780 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 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) [2022-07-22 21:24:12,780 INFO L186 Difference]: Start difference. First operand has 208 places, 206 transitions, 1604 flow. Second operand 19 states and 2257 transitions. [2022-07-22 21:24:12,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 299 transitions, 2771 flow [2022-07-22 21:24:23,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 299 transitions, 2246 flow, removed 218 selfloop flow, removed 21 redundant places. [2022-07-22 21:24:23,700 INFO L242 Difference]: Finished difference. Result has 206 places, 201 transitions, 1327 flow [2022-07-22 21:24:23,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1327, PETRI_PLACES=206, PETRI_TRANSITIONS=201} [2022-07-22 21:24:23,701 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 63 predicate places. [2022-07-22 21:24:23,701 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 201 transitions, 1327 flow [2022-07-22 21:24:23,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2022-07-22 21:24:23,702 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:24:23,702 INFO L200 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, 1, 1, 1] [2022-07-22 21:24:23,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 21:24:23,702 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:24:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:24:23,703 INFO L85 PathProgramCache]: Analyzing trace with hash 94815958, now seen corresponding path program 1 times [2022-07-22 21:24:23,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:24:23,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35078458] [2022-07-22 21:24:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:24:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:24:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:24:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:24:23,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:24:23,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35078458] [2022-07-22 21:24:23,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35078458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:24:23,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:24:23,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 21:24:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807671567] [2022-07-22 21:24:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:24:23,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 21:24:23,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:24:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 21:24:23,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 21:24:23,792 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2022-07-22 21:24:23,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 201 transitions, 1327 flow. Second operand has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 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) [2022-07-22 21:24:23,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:24:23,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2022-07-22 21:24:23,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:24:25,561 INFO L129 PetriNetUnfolder]: 5009/16116 cut-off events. [2022-07-22 21:24:25,562 INFO L130 PetriNetUnfolder]: For 40068/41680 co-relation queries the response was YES. [2022-07-22 21:24:25,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52746 conditions, 16116 events. 5009/16116 cut-off events. For 40068/41680 co-relation queries the response was YES. Maximal size of possible extension queue 1948. Compared 219424 event pairs, 86 based on Foata normal form. 7/15132 useless extension candidates. Maximal degree in co-relation 52633. Up to 1540 conditions per place. [2022-07-22 21:24:25,774 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 47 selfloop transitions, 35 changer transitions 18/248 dead transitions. [2022-07-22 21:24:25,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 248 transitions, 1958 flow [2022-07-22 21:24:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 21:24:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-22 21:24:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 896 transitions. [2022-07-22 21:24:25,776 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2022-07-22 21:24:25,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 896 transitions. [2022-07-22 21:24:25,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 896 transitions. [2022-07-22 21:24:25,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:24:25,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 896 transitions. [2022-07-22 21:24:25,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 112.0) internal successors, (896), 8 states have internal predecessors, (896), 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) [2022-07-22 21:24:25,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2022-07-22 21:24:25,780 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2022-07-22 21:24:25,780 INFO L186 Difference]: Start difference. First operand has 206 places, 201 transitions, 1327 flow. Second operand 8 states and 896 transitions. [2022-07-22 21:24:25,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 248 transitions, 1958 flow [2022-07-22 21:24:28,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 248 transitions, 1750 flow, removed 58 selfloop flow, removed 17 redundant places. [2022-07-22 21:24:28,698 INFO L242 Difference]: Finished difference. Result has 199 places, 213 transitions, 1469 flow [2022-07-22 21:24:28,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1469, PETRI_PLACES=199, PETRI_TRANSITIONS=213} [2022-07-22 21:24:28,700 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 56 predicate places. [2022-07-22 21:24:28,700 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 213 transitions, 1469 flow [2022-07-22 21:24:28,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 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) [2022-07-22 21:24:28,701 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:24:28,706 INFO L200 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, 1, 1, 1] [2022-07-22 21:24:28,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 21:24:28,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:24:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:24:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash -368164762, now seen corresponding path program 2 times [2022-07-22 21:24:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:24:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542302993] [2022-07-22 21:24:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:24:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:24:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:24:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:24:28,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:24:28,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542302993] [2022-07-22 21:24:28,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542302993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:24:28,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:24:28,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 21:24:28,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526017705] [2022-07-22 21:24:28,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:24:28,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 21:24:28,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:24:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 21:24:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-22 21:24:28,837 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2022-07-22 21:24:28,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 213 transitions, 1469 flow. Second operand has 8 states, 8 states have (on average 107.375) internal successors, (859), 8 states have internal predecessors, (859), 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) [2022-07-22 21:24:28,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:24:28,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2022-07-22 21:24:28,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:24:30,469 INFO L129 PetriNetUnfolder]: 4788/15607 cut-off events. [2022-07-22 21:24:30,469 INFO L130 PetriNetUnfolder]: For 28513/28972 co-relation queries the response was YES. [2022-07-22 21:24:30,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45304 conditions, 15607 events. 4788/15607 cut-off events. For 28513/28972 co-relation queries the response was YES. Maximal size of possible extension queue 1939. Compared 215499 event pairs, 75 based on Foata normal form. 1/14679 useless extension candidates. Maximal degree in co-relation 45267. Up to 1532 conditions per place. [2022-07-22 21:24:30,608 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 22 selfloop transitions, 10 changer transitions 77/251 dead transitions. [2022-07-22 21:24:30,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 251 transitions, 2005 flow [2022-07-22 21:24:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 21:24:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-22 21:24:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1004 transitions. [2022-07-22 21:24:30,619 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8202614379084967 [2022-07-22 21:24:30,619 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1004 transitions. [2022-07-22 21:24:30,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1004 transitions. [2022-07-22 21:24:30,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:24:30,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1004 transitions. [2022-07-22 21:24:30,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.55555555555556) internal successors, (1004), 9 states have internal predecessors, (1004), 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) [2022-07-22 21:24:30,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:24:30,623 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-07-22 21:24:30,623 INFO L186 Difference]: Start difference. First operand has 199 places, 213 transitions, 1469 flow. Second operand 9 states and 1004 transitions. [2022-07-22 21:24:30,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 251 transitions, 2005 flow [2022-07-22 21:24:32,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 251 transitions, 1943 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-07-22 21:24:32,283 INFO L242 Difference]: Finished difference. Result has 203 places, 172 transitions, 930 flow [2022-07-22 21:24:32,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1426, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=930, PETRI_PLACES=203, PETRI_TRANSITIONS=172} [2022-07-22 21:24:32,284 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 60 predicate places. [2022-07-22 21:24:32,284 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 172 transitions, 930 flow [2022-07-22 21:24:32,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.375) internal successors, (859), 8 states have internal predecessors, (859), 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) [2022-07-22 21:24:32,285 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:24:32,285 INFO L200 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, 1, 1, 1] [2022-07-22 21:24:32,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 21:24:32,285 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:24:32,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:24:32,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2114712642, now seen corresponding path program 3 times [2022-07-22 21:24:32,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:24:32,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995623122] [2022-07-22 21:24:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:24:32,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:24:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:24:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:24:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:24:32,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995623122] [2022-07-22 21:24:32,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995623122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:24:32,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:24:32,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 21:24:32,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677448200] [2022-07-22 21:24:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:24:32,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 21:24:32,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:24:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 21:24:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-22 21:24:32,435 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2022-07-22 21:24:32,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 172 transitions, 930 flow. Second operand has 10 states, 10 states have (on average 112.1) internal successors, (1121), 10 states have internal predecessors, (1121), 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) [2022-07-22 21:24:32,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:24:32,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2022-07-22 21:24:32,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:24:32,805 INFO L129 PetriNetUnfolder]: 569/2169 cut-off events. [2022-07-22 21:24:32,805 INFO L130 PetriNetUnfolder]: For 3909/3960 co-relation queries the response was YES. [2022-07-22 21:24:32,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6291 conditions, 2169 events. 569/2169 cut-off events. For 3909/3960 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 21870 event pairs, 2 based on Foata normal form. 1/2039 useless extension candidates. Maximal degree in co-relation 6253. Up to 282 conditions per place. [2022-07-22 21:24:32,819 INFO L132 encePairwiseOnDemand]: 127/136 looper letters, 17 selfloop transitions, 5 changer transitions 52/178 dead transitions. [2022-07-22 21:24:32,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 178 transitions, 1016 flow [2022-07-22 21:24:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 21:24:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-22 21:24:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1128 transitions. [2022-07-22 21:24:32,821 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8294117647058824 [2022-07-22 21:24:32,821 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1128 transitions. [2022-07-22 21:24:32,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1128 transitions. [2022-07-22 21:24:32,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:24:32,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1128 transitions. [2022-07-22 21:24:32,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.8) internal successors, (1128), 10 states have internal predecessors, (1128), 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) [2022-07-22 21:24:32,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-07-22 21:24:32,824 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-07-22 21:24:32,824 INFO L186 Difference]: Start difference. First operand has 203 places, 172 transitions, 930 flow. Second operand 10 states and 1128 transitions. [2022-07-22 21:24:32,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 178 transitions, 1016 flow [2022-07-22 21:24:32,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 178 transitions, 884 flow, removed 23 selfloop flow, removed 21 redundant places. [2022-07-22 21:24:32,869 INFO L242 Difference]: Finished difference. Result has 192 places, 126 transitions, 456 flow [2022-07-22 21:24:32,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=456, PETRI_PLACES=192, PETRI_TRANSITIONS=126} [2022-07-22 21:24:32,870 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 49 predicate places. [2022-07-22 21:24:32,870 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 126 transitions, 456 flow [2022-07-22 21:24:32,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.1) internal successors, (1121), 10 states have internal predecessors, (1121), 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) [2022-07-22 21:24:32,870 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:24:32,870 INFO L200 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, 1, 1, 1] [2022-07-22 21:24:32,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 21:24:32,871 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-22 21:24:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:24:32,871 INFO L85 PathProgramCache]: Analyzing trace with hash -349829180, now seen corresponding path program 4 times [2022-07-22 21:24:32,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:24:32,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304596017] [2022-07-22 21:24:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:24:32,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:24:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:24:32,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:24:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:24:32,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:24:32,968 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:24:32,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-07-22 21:24:32,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-07-22 21:24:32,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-07-22 21:24:32,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-22 21:24:32,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-07-22 21:24:32,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-07-22 21:24:32,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-07-22 21:24:32,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 21:24:32,974 INFO L356 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:24:32,978 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:24:32,979 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:24:33,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:24:33 BasicIcfg [2022-07-22 21:24:33,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:24:33,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:24:33,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:24:33,175 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:24:33,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:23:44" (3/4) ... [2022-07-22 21:24:33,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample