/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:58:50,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:58:50,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:58:50,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 02:58:50,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 02:58:50,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 02:58:50,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 02:58:50,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 02:58:50,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 02:58:50,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 02:58:50,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 02:58:50,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 02:58:50,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:58:50,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:58:50,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:58:50,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:58:50,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:58:50,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:58:50,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:58:50,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:58:50,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:58:50,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:58:50,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:58:50,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:58:50,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 02:58:50,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 02:58:50,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 02:58:50,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 02:58:50,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 02:58:50,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 02:58:50,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 02:58:50,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 02:58:50,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 02:58:50,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:58:50,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:58:50,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:58:50,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 02:58:50,521 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:58:50,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:58:50,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:58:50,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:58:50,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:58:50,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:58:50,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:58:50,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:58:50,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:58:50,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:58:50,524 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:58:50,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:58:50,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:58:50,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:58:50,705 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:58:50,706 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:58:50,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-01-28 02:58:51,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:58:51,879 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:58:51,879 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-01-28 02:58:51,889 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd390127b/a94b732bf0de48c68f8518f1e2048e9b/FLAG1cbe589a4 [2023-01-28 02:58:51,898 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd390127b/a94b732bf0de48c68f8518f1e2048e9b [2023-01-28 02:58:51,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:58:51,910 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:58:51,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:58:51,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:58:51,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:58:51,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:58:51" (1/1) ... [2023-01-28 02:58:51,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b16e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:51, skipping insertion in model container [2023-01-28 02:58:51,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:58:51" (1/1) ... [2023-01-28 02:58:51,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:58:51,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:58:52,134 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2023-01-28 02:58:52,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:58:52,146 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:58:52,204 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2023-01-28 02:58:52,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:58:52,211 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 02:58:52,212 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 02:58:52,216 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:58:52,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52 WrapperNode [2023-01-28 02:58:52,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:58:52,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:58:52,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:58:52,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:58:52,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,301 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2365 [2023-01-28 02:58:52,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:58:52,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:58:52,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:58:52,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:58:52,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:58:52,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:58:52,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:58:52,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:58:52,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (1/1) ... [2023-01-28 02:58:52,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:58:52,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:58:52,414 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) [2023-01-28 02:58:52,430 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 [2023-01-28 02:58:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:58:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:58:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:58:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 02:58:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 02:58:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 02:58:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 02:58:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 02:58:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 02:58:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 02:58:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:58:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 02:58:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 02:58:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 02:58:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:58:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:58:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:58:52,448 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 02:58:52,675 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:58:52,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:58:54,052 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:58:55,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:58:55,711 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-01-28 02:58:55,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:58:55 BoogieIcfgContainer [2023-01-28 02:58:55,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:58:55,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:58:55,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:58:55,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:58:55,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:58:51" (1/3) ... [2023-01-28 02:58:55,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646fff03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:58:55, skipping insertion in model container [2023-01-28 02:58:55,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:58:52" (2/3) ... [2023-01-28 02:58:55,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646fff03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:58:55, skipping insertion in model container [2023-01-28 02:58:55,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:58:55" (3/3) ... [2023-01-28 02:58:55,726 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-01-28 02:58:55,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:58:55,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:58:55,738 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:58:56,025 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 02:58:56,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 657 places, 726 transitions, 1476 flow [2023-01-28 02:58:56,306 INFO L130 PetriNetUnfolder]: 79/723 cut-off events. [2023-01-28 02:58:56,307 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 02:58:56,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 723 events. 79/723 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 934 event pairs, 0 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 642. Up to 7 conditions per place. [2023-01-28 02:58:56,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 657 places, 726 transitions, 1476 flow [2023-01-28 02:58:56,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 644 places, 713 transitions, 1444 flow [2023-01-28 02:58:56,326 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:58:56,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 644 places, 713 transitions, 1444 flow [2023-01-28 02:58:56,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 644 places, 713 transitions, 1444 flow [2023-01-28 02:58:56,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 644 places, 713 transitions, 1444 flow [2023-01-28 02:58:56,445 INFO L130 PetriNetUnfolder]: 79/713 cut-off events. [2023-01-28 02:58:56,446 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 02:58:56,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 713 events. 79/713 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 930 event pairs, 0 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 642. Up to 7 conditions per place. [2023-01-28 02:58:56,458 INFO L119 LiptonReduction]: Number of co-enabled transitions 22110 [2023-01-28 03:00:07,185 INFO L134 LiptonReduction]: Checked pairs total: 22962 [2023-01-28 03:00:07,185 INFO L136 LiptonReduction]: Total number of compositions: 836 [2023-01-28 03:00:07,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 03:00:07,207 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=false, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56349373, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 03:00:07,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 03:00:07,255 INFO L130 PetriNetUnfolder]: 24/57 cut-off events. [2023-01-28 03:00:07,256 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 03:00:07,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:00:07,256 INFO L208 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] [2023-01-28 03:00:07,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 03:00:07,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:00:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -411687634, now seen corresponding path program 1 times [2023-01-28 03:00:07,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:00:07,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447165870] [2023-01-28 03:00:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:00:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:07,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 03:00:07,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:00:07,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447165870] [2023-01-28 03:00:07,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447165870] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:00:07,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:00:07,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 03:00:07,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618268519] [2023-01-28 03:00:07,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:00:07,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 03:00:07,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:00:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 03:00:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 03:00:07,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1562 [2023-01-28 03:00:07,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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) [2023-01-28 03:00:07,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:00:07,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1562 [2023-01-28 03:00:07,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:00:09,396 INFO L130 PetriNetUnfolder]: 873/1099 cut-off events. [2023-01-28 03:00:09,396 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-01-28 03:00:09,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1099 events. 873/1099 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2607 event pairs, 333 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-01-28 03:00:09,404 INFO L137 encePairwiseOnDemand]: 1555/1562 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-01-28 03:00:09,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 262 flow [2023-01-28 03:00:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 03:00:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 03:00:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-01-28 03:00:09,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34080239009816476 [2023-01-28 03:00:09,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-01-28 03:00:09,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-01-28 03:00:09,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:00:09,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-01-28 03:00:09,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 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) [2023-01-28 03:00:09,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1562.0) internal successors, (6248), 4 states have internal predecessors, (6248), 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) [2023-01-28 03:00:09,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1562.0) internal successors, (6248), 4 states have internal predecessors, (6248), 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) [2023-01-28 03:00:09,452 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1597 transitions. [2023-01-28 03:00:09,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 262 flow [2023-01-28 03:00:09,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 03:00:09,457 INFO L231 Difference]: Finished difference. Result has 41 places, 61 transitions, 154 flow [2023-01-28 03:00:09,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1562, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=41, PETRI_TRANSITIONS=61} [2023-01-28 03:00:09,460 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-01-28 03:00:09,460 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 61 transitions, 154 flow [2023-01-28 03:00:09,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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) [2023-01-28 03:00:09,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:00:09,463 INFO L208 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] [2023-01-28 03:00:09,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 03:00:09,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 03:00:09,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:00:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2142957173, now seen corresponding path program 1 times [2023-01-28 03:00:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:00:09,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789244209] [2023-01-28 03:00:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:09,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:00:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 03:00:09,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:00:09,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789244209] [2023-01-28 03:00:09,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789244209] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:00:09,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:00:09,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 03:00:09,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312766582] [2023-01-28 03:00:09,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:00:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 03:00:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:00:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 03:00:09,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 03:00:09,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1562 [2023-01-28 03:00:09,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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) [2023-01-28 03:00:09,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:00:09,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1562 [2023-01-28 03:00:09,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:00:10,964 INFO L130 PetriNetUnfolder]: 873/1102 cut-off events. [2023-01-28 03:00:10,964 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 03:00:10,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 1102 events. 873/1102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2580 event pairs, 333 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 2211. Up to 1100 conditions per place. [2023-01-28 03:00:10,968 INFO L137 encePairwiseOnDemand]: 1555/1562 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-01-28 03:00:10,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 288 flow [2023-01-28 03:00:10,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 03:00:10,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 03:00:10,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-01-28 03:00:10,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34080239009816476 [2023-01-28 03:00:10,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-01-28 03:00:10,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-01-28 03:00:10,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:00:10,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-01-28 03:00:10,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 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) [2023-01-28 03:00:10,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1562.0) internal successors, (6248), 4 states have internal predecessors, (6248), 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) [2023-01-28 03:00:10,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1562.0) internal successors, (6248), 4 states have internal predecessors, (6248), 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) [2023-01-28 03:00:10,983 INFO L175 Difference]: Start difference. First operand has 41 places, 61 transitions, 154 flow. Second operand 3 states and 1597 transitions. [2023-01-28 03:00:10,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 288 flow [2023-01-28 03:00:10,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 03:00:10,985 INFO L231 Difference]: Finished difference. Result has 43 places, 64 transitions, 180 flow [2023-01-28 03:00:10,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1562, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=43, PETRI_TRANSITIONS=64} [2023-01-28 03:00:10,986 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-01-28 03:00:10,986 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 64 transitions, 180 flow [2023-01-28 03:00:10,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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) [2023-01-28 03:00:10,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:00:10,987 INFO L208 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] [2023-01-28 03:00:10,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 03:00:10,987 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 03:00:10,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:00:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash 634694811, now seen corresponding path program 1 times [2023-01-28 03:00:10,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:00:10,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965704538] [2023-01-28 03:00:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:10,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:00:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 03:00:11,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:00:11,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965704538] [2023-01-28 03:00:11,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965704538] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 03:00:11,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134439771] [2023-01-28 03:00:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:11,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 03:00:11,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 03:00:11,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 03:00:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 03:00:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:11,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 5 conjunts are in the unsatisfiable core [2023-01-28 03:00:11,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 03:00:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 03:00:12,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 03:00:12,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 03:00:12,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134439771] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 03:00:12,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 03:00:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-28 03:00:12,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890150124] [2023-01-28 03:00:12,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 03:00:12,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 03:00:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:00:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 03:00:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-01-28 03:00:12,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1562 [2023-01-28 03:00:12,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 64 transitions, 180 flow. Second operand has 8 states, 8 states have (on average 516.0) internal successors, (4128), 8 states have internal predecessors, (4128), 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) [2023-01-28 03:00:12,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:00:12,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1562 [2023-01-28 03:00:12,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:00:13,530 INFO L130 PetriNetUnfolder]: 873/1132 cut-off events. [2023-01-28 03:00:13,530 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 03:00:13,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2331 conditions, 1132 events. 873/1132 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2580 event pairs, 333 based on Foata normal form. 9/604 useless extension candidates. Maximal degree in co-relation 2268. Up to 1097 conditions per place. [2023-01-28 03:00:13,534 INFO L137 encePairwiseOnDemand]: 1537/1562 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-01-28 03:00:13,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 94 transitions, 464 flow [2023-01-28 03:00:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 03:00:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 03:00:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4212 transitions. [2023-01-28 03:00:13,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33706786171574904 [2023-01-28 03:00:13,542 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4212 transitions. [2023-01-28 03:00:13,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4212 transitions. [2023-01-28 03:00:13,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:00:13,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4212 transitions. [2023-01-28 03:00:13,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 526.5) internal successors, (4212), 8 states have internal predecessors, (4212), 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) [2023-01-28 03:00:13,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1562.0) internal successors, (14058), 9 states have internal predecessors, (14058), 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) [2023-01-28 03:00:13,567 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1562.0) internal successors, (14058), 9 states have internal predecessors, (14058), 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) [2023-01-28 03:00:13,567 INFO L175 Difference]: Start difference. First operand has 43 places, 64 transitions, 180 flow. Second operand 8 states and 4212 transitions. [2023-01-28 03:00:13,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 94 transitions, 464 flow [2023-01-28 03:00:13,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 94 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 03:00:13,570 INFO L231 Difference]: Finished difference. Result has 51 places, 94 transitions, 442 flow [2023-01-28 03:00:13,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1562, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=442, PETRI_PLACES=51, PETRI_TRANSITIONS=94} [2023-01-28 03:00:13,572 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 7 predicate places. [2023-01-28 03:00:13,572 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 94 transitions, 442 flow [2023-01-28 03:00:13,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 516.0) internal successors, (4128), 8 states have internal predecessors, (4128), 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) [2023-01-28 03:00:13,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:00:13,573 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:00:13,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 03:00:13,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 03:00:13,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 03:00:13,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:00:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash -795979998, now seen corresponding path program 1 times [2023-01-28 03:00:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:00:13,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792305038] [2023-01-28 03:00:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:13,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:00:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:14,321 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-01-28 03:00:14,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:00:14,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792305038] [2023-01-28 03:00:14,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792305038] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 03:00:14,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650686327] [2023-01-28 03:00:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:14,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 03:00:14,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 03:00:14,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 03:00:14,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 03:00:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:15,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 03:00:15,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 03:00:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-01-28 03:00:15,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 03:00:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-01-28 03:00:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650686327] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 03:00:15,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 03:00:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-01-28 03:00:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353110731] [2023-01-28 03:00:15,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 03:00:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 03:00:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:00:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 03:00:15,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2023-01-28 03:00:15,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1562 [2023-01-28 03:00:15,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 94 transitions, 442 flow. Second operand has 17 states, 17 states have (on average 514.8235294117648) internal successors, (8752), 17 states have internal predecessors, (8752), 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) [2023-01-28 03:00:15,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:00:15,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1562 [2023-01-28 03:00:15,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:00:16,756 INFO L130 PetriNetUnfolder]: 873/1165 cut-off events. [2023-01-28 03:00:16,756 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 03:00:16,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2536 conditions, 1165 events. 873/1165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2605 event pairs, 333 based on Foata normal form. 19/652 useless extension candidates. Maximal degree in co-relation 2434. Up to 1097 conditions per place. [2023-01-28 03:00:16,760 INFO L137 encePairwiseOnDemand]: 1537/1562 looper letters, 46 selfloop transitions, 81 changer transitions 0/127 dead transitions. [2023-01-28 03:00:16,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 127 transitions, 870 flow [2023-01-28 03:00:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-28 03:00:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-01-28 03:00:16,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 8847 transitions. [2023-01-28 03:00:16,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3331701438577992 [2023-01-28 03:00:16,775 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 8847 transitions. [2023-01-28 03:00:16,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 8847 transitions. [2023-01-28 03:00:16,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:00:16,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 8847 transitions. [2023-01-28 03:00:16,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 520.4117647058823) internal successors, (8847), 17 states have internal predecessors, (8847), 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) [2023-01-28 03:00:16,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1562.0) internal successors, (28116), 18 states have internal predecessors, (28116), 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) [2023-01-28 03:00:16,819 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1562.0) internal successors, (28116), 18 states have internal predecessors, (28116), 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) [2023-01-28 03:00:16,819 INFO L175 Difference]: Start difference. First operand has 51 places, 94 transitions, 442 flow. Second operand 17 states and 8847 transitions. [2023-01-28 03:00:16,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 127 transitions, 870 flow [2023-01-28 03:00:16,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 127 transitions, 752 flow, removed 47 selfloop flow, removed 4 redundant places. [2023-01-28 03:00:16,823 INFO L231 Difference]: Finished difference. Result has 66 places, 127 transitions, 730 flow [2023-01-28 03:00:16,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1562, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=730, PETRI_PLACES=66, PETRI_TRANSITIONS=127} [2023-01-28 03:00:16,824 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 22 predicate places. [2023-01-28 03:00:16,824 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 127 transitions, 730 flow [2023-01-28 03:00:16,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 514.8235294117648) internal successors, (8752), 17 states have internal predecessors, (8752), 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) [2023-01-28 03:00:16,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:00:16,827 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:00:16,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 03:00:17,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 03:00:17,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 03:00:17,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:00:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash 228461301, now seen corresponding path program 2 times [2023-01-28 03:00:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:00:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296248179] [2023-01-28 03:00:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:00:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:00:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:00:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-01-28 03:00:17,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:00:17,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296248179] [2023-01-28 03:00:17,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296248179] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 03:00:17,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91052594] [2023-01-28 03:00:17,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 03:00:17,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 03:00:17,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 03:00:17,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 03:00:17,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 03:00:18,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 03:00:18,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 03:00:18,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 23 conjunts are in the unsatisfiable core [2023-01-28 03:00:18,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 03:01:30,263 WARN L222 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 191 DAG size of output: 191 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 03:01:31,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:31,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:31,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:31,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:31,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:31,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 03:01:40,882 WARN L222 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 1726 DAG size of output: 1059 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 03:01:40,885 INFO L321 Elim1Store]: treesize reduction 1396, result has 59.5 percent of original size [2023-01-28 03:01:40,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 6 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 400 case distinctions, treesize of input 1529 treesize of output 3336 Received shutdown request... [2023-01-28 03:12:49,249 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 03:12:49,249 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 03:12:49,272 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 03:12:49,274 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 03:12:49,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 03:12:49,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 03:12:49,483 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 98 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 48ms.. [2023-01-28 03:12:49,484 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 03:12:49,484 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 03:12:49,484 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 03:12:49,485 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-01-28 03:12:49,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 03:12:49,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 03:12:49,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 03:12:49 BasicIcfg [2023-01-28 03:12:49,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 03:12:49,492 INFO L158 Benchmark]: Toolchain (without parser) took 837580.08ms. Allocated memory was 400.6MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 342.1MB in the beginning and 856.1MB in the end (delta: -514.0MB). Peak memory consumption was 1.4GB. Max. memory is 16.0GB. [2023-01-28 03:12:49,493 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 213.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 03:12:49,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.26ms. Allocated memory is still 400.6MB. Free memory was 341.9MB in the beginning and 358.2MB in the end (delta: -16.3MB). Peak memory consumption was 10.3MB. Max. memory is 16.0GB. [2023-01-28 03:12:49,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.37ms. Allocated memory is still 400.6MB. Free memory was 358.2MB in the beginning and 346.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 03:12:49,494 INFO L158 Benchmark]: Boogie Preprocessor took 80.57ms. Allocated memory is still 400.6MB. Free memory was 346.7MB in the beginning and 336.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 03:12:49,494 INFO L158 Benchmark]: RCFGBuilder took 3331.84ms. Allocated memory was 400.6MB in the beginning and 700.4MB in the end (delta: 299.9MB). Free memory was 336.2MB in the beginning and 376.3MB in the end (delta: -40.1MB). Peak memory consumption was 261.8MB. Max. memory is 16.0GB. [2023-01-28 03:12:49,494 INFO L158 Benchmark]: TraceAbstraction took 833773.58ms. Allocated memory was 700.4MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 376.3MB in the beginning and 856.1MB in the end (delta: -479.8MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-01-28 03:12:49,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 213.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 305.26ms. Allocated memory is still 400.6MB. Free memory was 341.9MB in the beginning and 358.2MB in the end (delta: -16.3MB). Peak memory consumption was 10.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 84.37ms. Allocated memory is still 400.6MB. Free memory was 358.2MB in the beginning and 346.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 80.57ms. Allocated memory is still 400.6MB. Free memory was 346.7MB in the beginning and 336.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * RCFGBuilder took 3331.84ms. Allocated memory was 400.6MB in the beginning and 700.4MB in the end (delta: 299.9MB). Free memory was 336.2MB in the beginning and 376.3MB in the end (delta: -40.1MB). Peak memory consumption was 261.8MB. Max. memory is 16.0GB. * TraceAbstraction took 833773.58ms. Allocated memory was 700.4MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 376.3MB in the beginning and 856.1MB in the end (delta: -479.8MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.8s, 644 PlacesBefore, 44 PlacesAfterwards, 713 TransitionsBefore, 58 TransitionsAfterwards, 22110 CoEnabledTransitionPairs, 7 FixpointIterations, 456 TrivialSequentialCompositions, 173 ConcurrentSequentialCompositions, 108 TrivialYvCompositions, 44 ConcurrentYvCompositions, 55 ChoiceCompositions, 836 TotalNumberOfCompositions, 22962 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21104, independent: 21067, independent conditional: 0, independent unconditional: 21067, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12415, independent: 12384, independent conditional: 0, independent unconditional: 12384, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21104, independent: 8683, independent conditional: 0, independent unconditional: 8683, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 12415, unknown conditional: 0, unknown unconditional: 12415] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 341]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 98 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 48ms.. - TimeoutResultAtElement [Line: 335]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 98 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 48ms.. - TimeoutResultAtElement [Line: 334]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 98 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 48ms.. - TimeoutResultAtElement [Line: 333]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 98 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 48ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 789 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 833.4s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 71.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 248 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 719 IncrementalHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 248 mSolverCounterUnsat, 0 mSDtfsCounter, 719 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=730occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 465 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1494 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 222/255 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown