/usr/bin/java -Xmx8000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b
[2022-12-05 20:28:22,713 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-05 20:28:22,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-05 20:28:22,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-05 20:28:22,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-05 20:28:22,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-05 20:28:22,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-05 20:28:22,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-05 20:28:22,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-05 20:28:22,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-05 20:28:22,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-05 20:28:22,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-05 20:28:22,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-05 20:28:22,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-05 20:28:22,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-05 20:28:22,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-05 20:28:22,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-05 20:28:22,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-05 20:28:22,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-05 20:28:22,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-05 20:28:22,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-05 20:28:22,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-05 20:28:22,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-05 20:28:22,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-05 20:28:22,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-05 20:28:22,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-05 20:28:22,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-05 20:28:22,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-05 20:28:22,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-05 20:28:22,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-05 20:28:22,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-05 20:28:22,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-05 20:28:22,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-05 20:28:22,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-05 20:28:22,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-05 20:28:22,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-05 20:28:22,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-05 20:28:22,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-05 20:28:22,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-05 20:28:22,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-05 20:28:22,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-05 20:28:22,788 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-SemanticLbe.epf
[2022-12-05 20:28:22,812 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-05 20:28:22,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-05 20:28:22,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-05 20:28:22,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-05 20:28:22,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-05 20:28:22,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-05 20:28:22,814 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-05 20:28:22,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-05 20:28:22,815 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-05 20:28:22,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-12-05 20:28:22,816 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-12-05 20:28:22,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-05 20:28:22,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-05 20:28:22,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-05 20:28:22,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-05 20:28:22,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-05 20:28:22,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-12-05 20:28:22,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-05 20:28:22,818 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-05 20:28:22,818 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-12-05 20:28:23,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-05 20:28:23,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-05 20:28:23,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-05 20:28:23,135 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-05 20:28:23,136 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-05 20:28:23,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2022-12-05 20:28:24,108 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-05 20:28:24,380 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-05 20:28:24,380 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2022-12-05 20:28:24,404 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b581bc28/5ba0c7a54fd04af88e1a5091ab4fd1f6/FLAGd866eb1e4
[2022-12-05 20:28:24,416 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b581bc28/5ba0c7a54fd04af88e1a5091ab4fd1f6
[2022-12-05 20:28:24,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-05 20:28:24,419 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-12-05 20:28:24,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-05 20:28:24,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-05 20:28:24,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-05 20:28:24,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3775a101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24, skipping insertion in model container
[2022-12-05 20:28:24,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-05 20:28:24,462 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-05 20:28:24,588 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988]
[2022-12-05 20:28:24,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,742 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-05 20:28:24,749 INFO L203 MainTranslator]: Completed pre-run
[2022-12-05 20:28:24,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988]
[2022-12-05 20:28:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-05 20:28:24,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-05 20:28:24,802 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-05 20:28:24,833 INFO L208 MainTranslator]: Completed translation
[2022-12-05 20:28:24,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24 WrapperNode
[2022-12-05 20:28:24,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-05 20:28:24,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-05 20:28:24,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-05 20:28:24,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-05 20:28:24,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,881 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85
[2022-12-05 20:28:24,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-05 20:28:24,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-05 20:28:24,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-05 20:28:24,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-12-05 20:28:24,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-05 20:28:24,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-05 20:28:24,915 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-12-05 20:28:24,916 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-12-05 20:28:24,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (1/1) ...
[2022-12-05 20:28:24,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-05 20:28:24,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-12-05 20:28:24,952 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)
[2022-12-05 20:28:24,985 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
[2022-12-05 20:28:24,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2022-12-05 20:28:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2022-12-05 20:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2022-12-05 20:28:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2022-12-05 20:28:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2022-12-05 20:28:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2022-12-05 20:28:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2022-12-05 20:28:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2022-12-05 20:28:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-05 20:28:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-12-05 20:28:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-05 20:28:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-05 20:28:25,001 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2022-12-05 20:28:25,127 INFO L236 CfgBuilder]: Building ICFG
[2022-12-05 20:28:25,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-05 20:28:25,244 INFO L277 CfgBuilder]: Performing block encoding
[2022-12-05 20:28:25,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-05 20:28:25,249 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2022-12-05 20:28:25,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:25 BoogieIcfgContainer
[2022-12-05 20:28:25,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-05 20:28:25,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-05 20:28:25,252 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-12-05 20:28:25,254 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-12-05 20:28:25,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:28:24" (1/3) ...
[2022-12-05 20:28:25,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:25, skipping insertion in model container
[2022-12-05 20:28:25,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:24" (2/3) ...
[2022-12-05 20:28:25,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:25, skipping insertion in model container
[2022-12-05 20:28:25,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:25" (3/3) ...
[2022-12-05 20:28:25,256 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2022-12-05 20:28:25,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-05 20:28:25,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-05 20:28:25,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-12-05 20:28:25,308 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-12-05 20:28:25,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 104 transitions, 228 flow
[2022-12-05 20:28:25,363 INFO L130 PetriNetUnfolder]: 2/100 cut-off events.
[2022-12-05 20:28:25,363 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:28:25,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place.
[2022-12-05 20:28:25,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 104 transitions, 228 flow
[2022-12-05 20:28:25,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow
[2022-12-05 20:28:25,372 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-12-05 20:28:25,384 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 86 transitions, 184 flow
[2022-12-05 20:28:25,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 86 transitions, 184 flow
[2022-12-05 20:28:25,405 INFO L130 PetriNetUnfolder]: 1/86 cut-off events.
[2022-12-05 20:28:25,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:28:25,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place.
[2022-12-05 20:28:25,408 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 86 transitions, 184 flow
[2022-12-05 20:28:25,408 INFO L188 LiptonReduction]: Number of co-enabled transitions 1704
[2022-12-05 20:28:27,748 INFO L203 LiptonReduction]: Total number of compositions: 64
[2022-12-05 20:28:27,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-05 20:28:27,768 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;@39d79fbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-05 20:28:27,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-12-05 20:28:27,779 INFO L130 PetriNetUnfolder]: 0/18 cut-off events.
[2022-12-05 20:28:27,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-12-05 20:28:27,779 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:27,780 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:27,780 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 2 more)] ===
[2022-12-05 20:28:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:27,784 INFO L85 PathProgramCache]: Analyzing trace with hash 359997830, now seen corresponding path program 1 times
[2022-12-05 20:28:27,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:27,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600311513]
[2022-12-05 20:28:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:28,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:28,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600311513]
[2022-12-05 20:28:28,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600311513] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:28,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:28,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-12-05 20:28:28,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645286895]
[2022-12-05 20:28:28,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-05 20:28:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-05 20:28:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-05 20:28:28,145 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23
[2022-12-05 20:28:28,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2022-12-05 20:28:28,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:28,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23
[2022-12-05 20:28:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:28,280 INFO L130 PetriNetUnfolder]: 700/1137 cut-off events.
[2022-12-05 20:28:28,280 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES.
[2022-12-05 20:28:28,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 1137 events. 700/1137 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5671 event pairs, 416 based on Foata normal form. 1/1138 useless extension candidates. Maximal degree in co-relation 2232. Up to 1013 conditions per place.
[2022-12-05 20:28:28,288 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions.
[2022-12-05 20:28:28,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 145 flow
[2022-12-05 20:28:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:28:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:28:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions.
[2022-12-05 20:28:28,295 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6376811594202898
[2022-12-05 20:28:28,296 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 58 flow. Second operand 3 states and 44 transitions.
[2022-12-05 20:28:28,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 145 flow
[2022-12-05 20:28:28,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 4 redundant places.
[2022-12-05 20:28:28,300 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 85 flow
[2022-12-05 20:28:28,301 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=26}
[2022-12-05 20:28:28,303 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places.
[2022-12-05 20:28:28,303 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 85 flow
[2022-12-05 20:28:28,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2022-12-05 20:28:28,304 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:28,304 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:28,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-05 20:28:28,304 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 2 more)] ===
[2022-12-05 20:28:28,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:28,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1724969940, now seen corresponding path program 1 times
[2022-12-05 20:28:28,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:28,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112420757]
[2022-12-05 20:28:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:28,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:28,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:28,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112420757]
[2022-12-05 20:28:28,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112420757] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:28,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:28,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:28,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133901788]
[2022-12-05 20:28:28,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:28,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:28,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:28,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:28,420 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23
[2022-12-05 20:28:28,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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)
[2022-12-05 20:28:28,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:28,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23
[2022-12-05 20:28:28,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:28,516 INFO L130 PetriNetUnfolder]: 623/1021 cut-off events.
[2022-12-05 20:28:28,516 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES.
[2022-12-05 20:28:28,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 1021 events. 623/1021 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5123 event pairs, 177 based on Foata normal form. 26/1042 useless extension candidates. Maximal degree in co-relation 2425. Up to 720 conditions per place.
[2022-12-05 20:28:28,522 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 30 selfloop transitions, 3 changer transitions 0/37 dead transitions.
[2022-12-05 20:28:28,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 183 flow
[2022-12-05 20:28:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:28:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:28:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions.
[2022-12-05 20:28:28,524 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131
[2022-12-05 20:28:28,524 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 85 flow. Second operand 3 states and 42 transitions.
[2022-12-05 20:28:28,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 183 flow
[2022-12-05 20:28:28,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-12-05 20:28:28,525 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 91 flow
[2022-12-05 20:28:28,525 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=26}
[2022-12-05 20:28:28,526 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2022-12-05 20:28:28,526 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow
[2022-12-05 20:28:28,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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)
[2022-12-05 20:28:28,526 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:28,526 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:28,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-05 20:28:28,526 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 2 more)] ===
[2022-12-05 20:28:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1724970281, now seen corresponding path program 1 times
[2022-12-05 20:28:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:28,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944809343]
[2022-12-05 20:28:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:28,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:28,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:28,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944809343]
[2022-12-05 20:28:28,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944809343] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:28,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:28,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:28,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127665700]
[2022-12-05 20:28:28,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:28,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:28,628 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:28,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2022-12-05 20:28:28,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:28,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:28,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:28,807 INFO L130 PetriNetUnfolder]: 1240/1913 cut-off events.
[2022-12-05 20:28:28,808 INFO L131 PetriNetUnfolder]: For 903/903 co-relation queries the response was YES.
[2022-12-05 20:28:28,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 1913 events. 1240/1913 cut-off events. For 903/903 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 10405 event pairs, 172 based on Foata normal form. 72/1975 useless extension candidates. Maximal degree in co-relation 4796. Up to 733 conditions per place.
[2022-12-05 20:28:28,817 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 50 selfloop transitions, 12 changer transitions 0/65 dead transitions.
[2022-12-05 20:28:28,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 65 transitions, 332 flow
[2022-12-05 20:28:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-05 20:28:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-12-05 20:28:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions.
[2022-12-05 20:28:28,821 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6608695652173913
[2022-12-05 20:28:28,821 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 5 states and 76 transitions.
[2022-12-05 20:28:28,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 65 transitions, 332 flow
[2022-12-05 20:28:28,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:28:28,823 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 172 flow
[2022-12-05 20:28:28,824 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=41, PETRI_TRANSITIONS=33}
[2022-12-05 20:28:28,824 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places.
[2022-12-05 20:28:28,824 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 172 flow
[2022-12-05 20:28:28,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2022-12-05 20:28:28,824 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:28,825 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-05 20:28:28,825 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 2 more)] ===
[2022-12-05 20:28:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 129172197, now seen corresponding path program 1 times
[2022-12-05 20:28:28,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:28,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395500943]
[2022-12-05 20:28:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:28,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395500943]
[2022-12-05 20:28:28,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395500943] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:28,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:28,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:28,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164703465]
[2022-12-05 20:28:28,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:28,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:28,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:28,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:28,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:28,894 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:28,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2022-12-05 20:28:28,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:28,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:28,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,092 INFO L130 PetriNetUnfolder]: 1325/2115 cut-off events.
[2022-12-05 20:28:29,093 INFO L131 PetriNetUnfolder]: For 3091/3091 co-relation queries the response was YES.
[2022-12-05 20:28:29,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6405 conditions, 2115 events. 1325/2115 cut-off events. For 3091/3091 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 12470 event pairs, 313 based on Foata normal form. 70/2151 useless extension candidates. Maximal degree in co-relation 6389. Up to 822 conditions per place.
[2022-12-05 20:28:29,102 INFO L137 encePairwiseOnDemand]: 19/23 looper letters, 40 selfloop transitions, 3 changer transitions 10/56 dead transitions.
[2022-12-05 20:28:29,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 358 flow
[2022-12-05 20:28:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:28:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:28:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions.
[2022-12-05 20:28:29,103 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6195652173913043
[2022-12-05 20:28:29,103 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 172 flow. Second operand 4 states and 57 transitions.
[2022-12-05 20:28:29,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 358 flow
[2022-12-05 20:28:29,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 56 transitions, 350 flow, removed 2 selfloop flow, removed 1 redundant places.
[2022-12-05 20:28:29,107 INFO L231 Difference]: Finished difference. Result has 45 places, 25 transitions, 126 flow
[2022-12-05 20:28:29,107 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=25}
[2022-12-05 20:28:29,108 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places.
[2022-12-05 20:28:29,108 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 25 transitions, 126 flow
[2022-12-05 20:28:29,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2022-12-05 20:28:29,108 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,108 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-05 20:28:29,109 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 2 more)] ===
[2022-12-05 20:28:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1598953251, now seen corresponding path program 1 times
[2022-12-05 20:28:29,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206080262]
[2022-12-05 20:28:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:29,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:29,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206080262]
[2022-12-05 20:28:29,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206080262] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:29,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:29,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:29,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825385582]
[2022-12-05 20:28:29,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:29,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:29,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:29,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:29,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:29,202 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23
[2022-12-05 20:28:29,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 25 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:28:29,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:29,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23
[2022-12-05 20:28:29,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,267 INFO L130 PetriNetUnfolder]: 398/686 cut-off events.
[2022-12-05 20:28:29,267 INFO L131 PetriNetUnfolder]: For 1206/1207 co-relation queries the response was YES.
[2022-12-05 20:28:29,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2166 conditions, 686 events. 398/686 cut-off events. For 1206/1207 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3325 event pairs, 104 based on Foata normal form. 12/694 useless extension candidates. Maximal degree in co-relation 2147. Up to 443 conditions per place.
[2022-12-05 20:28:29,271 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 27 selfloop transitions, 3 changer transitions 0/34 dead transitions.
[2022-12-05 20:28:29,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 224 flow
[2022-12-05 20:28:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:28:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:28:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions.
[2022-12-05 20:28:29,272 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5797101449275363
[2022-12-05 20:28:29,272 INFO L175 Difference]: Start difference. First operand has 45 places, 25 transitions, 126 flow. Second operand 3 states and 40 transitions.
[2022-12-05 20:28:29,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 224 flow
[2022-12-05 20:28:29,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 170 flow, removed 14 selfloop flow, removed 9 redundant places.
[2022-12-05 20:28:29,274 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 93 flow
[2022-12-05 20:28:29,274 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=25}
[2022-12-05 20:28:29,275 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places.
[2022-12-05 20:28:29,275 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 93 flow
[2022-12-05 20:28:29,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:28:29,275 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,275 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-05 20:28:29,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash 3997276, now seen corresponding path program 1 times
[2022-12-05 20:28:29,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101075198]
[2022-12-05 20:28:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:29,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:29,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101075198]
[2022-12-05 20:28:29,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101075198] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:29,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:29,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:29,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104121415]
[2022-12-05 20:28:29,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:29,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:29,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:29,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:29,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:29,349 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:29,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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)
[2022-12-05 20:28:29,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:29,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:29,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,482 INFO L130 PetriNetUnfolder]: 798/1284 cut-off events.
[2022-12-05 20:28:29,483 INFO L131 PetriNetUnfolder]: For 821/821 co-relation queries the response was YES.
[2022-12-05 20:28:29,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3257 conditions, 1284 events. 798/1284 cut-off events. For 821/821 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6569 event pairs, 156 based on Foata normal form. 36/1315 useless extension candidates. Maximal degree in co-relation 3243. Up to 441 conditions per place.
[2022-12-05 20:28:29,489 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 44 selfloop transitions, 10 changer transitions 1/58 dead transitions.
[2022-12-05 20:28:29,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 58 transitions, 304 flow
[2022-12-05 20:28:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-05 20:28:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-12-05 20:28:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions.
[2022-12-05 20:28:29,490 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131
[2022-12-05 20:28:29,490 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 93 flow. Second operand 5 states and 70 transitions.
[2022-12-05 20:28:29,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 58 transitions, 304 flow
[2022-12-05 20:28:29,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:28:29,492 INFO L231 Difference]: Finished difference. Result has 43 places, 31 transitions, 163 flow
[2022-12-05 20:28:29,492 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=43, PETRI_TRANSITIONS=31}
[2022-12-05 20:28:29,492 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places.
[2022-12-05 20:28:29,492 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 163 flow
[2022-12-05 20:28:29,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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)
[2022-12-05 20:28:29,493 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,493 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-05 20:28:29,493 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1185314598, now seen corresponding path program 2 times
[2022-12-05 20:28:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291353663]
[2022-12-05 20:28:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:29,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:29,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291353663]
[2022-12-05 20:28:29,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291353663] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:29,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:29,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-05 20:28:29,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008700607]
[2022-12-05 20:28:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:29,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:28:29,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:29,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:28:29,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:28:29,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:29,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:28:29,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:29,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:29,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,672 INFO L130 PetriNetUnfolder]: 870/1429 cut-off events.
[2022-12-05 20:28:29,672 INFO L131 PetriNetUnfolder]: For 2119/2120 co-relation queries the response was YES.
[2022-12-05 20:28:29,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4155 conditions, 1429 events. 870/1429 cut-off events. For 2119/2120 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7761 event pairs, 290 based on Foata normal form. 36/1453 useless extension candidates. Maximal degree in co-relation 4138. Up to 555 conditions per place.
[2022-12-05 20:28:29,677 INFO L137 encePairwiseOnDemand]: 19/23 looper letters, 33 selfloop transitions, 3 changer transitions 9/48 dead transitions.
[2022-12-05 20:28:29,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 305 flow
[2022-12-05 20:28:29,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:28:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:28:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions.
[2022-12-05 20:28:29,678 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5543478260869565
[2022-12-05 20:28:29,678 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 163 flow. Second operand 4 states and 51 transitions.
[2022-12-05 20:28:29,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 305 flow
[2022-12-05 20:28:29,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 300 flow, removed 1 selfloop flow, removed 1 redundant places.
[2022-12-05 20:28:29,680 INFO L231 Difference]: Finished difference. Result has 47 places, 24 transitions, 122 flow
[2022-12-05 20:28:29,680 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=47, PETRI_TRANSITIONS=24}
[2022-12-05 20:28:29,681 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places.
[2022-12-05 20:28:29,681 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 24 transitions, 122 flow
[2022-12-05 20:28:29,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-05 20:28:29,681 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,681 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-05 20:28:29,681 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,682 INFO L85 PathProgramCache]: Analyzing trace with hash -109425746, now seen corresponding path program 1 times
[2022-12-05 20:28:29,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755092783]
[2022-12-05 20:28:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:29,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755092783]
[2022-12-05 20:28:29,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755092783] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:29,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:29,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-12-05 20:28:29,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203457576]
[2022-12-05 20:28:29,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:29,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-05 20:28:29,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-05 20:28:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-05 20:28:29,741 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23
[2022-12-05 20:28:29,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 24 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2022-12-05 20:28:29,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:29,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23
[2022-12-05 20:28:29,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,820 INFO L130 PetriNetUnfolder]: 260/469 cut-off events.
[2022-12-05 20:28:29,820 INFO L131 PetriNetUnfolder]: For 912/915 co-relation queries the response was YES.
[2022-12-05 20:28:29,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 469 events. 260/469 cut-off events. For 912/915 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1993 event pairs, 110 based on Foata normal form. 8/474 useless extension candidates. Maximal degree in co-relation 1400. Up to 235 conditions per place.
[2022-12-05 20:28:29,823 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 23 selfloop transitions, 3 changer transitions 0/30 dead transitions.
[2022-12-05 20:28:29,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 30 transitions, 200 flow
[2022-12-05 20:28:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-05 20:28:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-12-05 20:28:29,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions.
[2022-12-05 20:28:29,824 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5507246376811594
[2022-12-05 20:28:29,824 INFO L175 Difference]: Start difference. First operand has 47 places, 24 transitions, 122 flow. Second operand 3 states and 38 transitions.
[2022-12-05 20:28:29,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 30 transitions, 200 flow
[2022-12-05 20:28:29,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 151 flow, removed 12 selfloop flow, removed 10 redundant places.
[2022-12-05 20:28:29,825 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 91 flow
[2022-12-05 20:28:29,825 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=39, PETRI_TRANSITIONS=24}
[2022-12-05 20:28:29,826 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places.
[2022-12-05 20:28:29,826 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 91 flow
[2022-12-05 20:28:29,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2022-12-05 20:28:29,826 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,826 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-05 20:28:29,826 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,827 INFO L85 PathProgramCache]: Analyzing trace with hash 902769287, now seen corresponding path program 1 times
[2022-12-05 20:28:29,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749135466]
[2022-12-05 20:28:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:29,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:29,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749135466]
[2022-12-05 20:28:29,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749135466] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:29,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:29,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-05 20:28:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353492999]
[2022-12-05 20:28:29,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:29,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-05 20:28:29,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-05 20:28:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-05 20:28:29,900 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:29,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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)
[2022-12-05 20:28:29,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:29,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:29,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:29,984 INFO L130 PetriNetUnfolder]: 472/778 cut-off events.
[2022-12-05 20:28:29,985 INFO L131 PetriNetUnfolder]: For 554/554 co-relation queries the response was YES.
[2022-12-05 20:28:29,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1935 conditions, 778 events. 472/778 cut-off events. For 554/554 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3373 event pairs, 92 based on Foata normal form. 24/791 useless extension candidates. Maximal degree in co-relation 1921. Up to 278 conditions per place.
[2022-12-05 20:28:29,988 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 34 selfloop transitions, 7 changer transitions 6/50 dead transitions.
[2022-12-05 20:28:29,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 50 transitions, 263 flow
[2022-12-05 20:28:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-05 20:28:29,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-12-05 20:28:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions.
[2022-12-05 20:28:29,989 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5478260869565217
[2022-12-05 20:28:29,989 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 91 flow. Second operand 5 states and 63 transitions.
[2022-12-05 20:28:29,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 50 transitions, 263 flow
[2022-12-05 20:28:29,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-12-05 20:28:29,990 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 137 flow
[2022-12-05 20:28:29,990 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=44, PETRI_TRANSITIONS=27}
[2022-12-05 20:28:29,991 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places.
[2022-12-05 20:28:29,991 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 137 flow
[2022-12-05 20:28:29,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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)
[2022-12-05 20:28:29,991 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:29,991 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:29,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-12-05 20:28:29,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:29,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash -266869143, now seen corresponding path program 2 times
[2022-12-05 20:28:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:29,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234482101]
[2022-12-05 20:28:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:30,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:30,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234482101]
[2022-12-05 20:28:30,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234482101] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:30,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:30,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-05 20:28:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350408832]
[2022-12-05 20:28:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:30,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:28:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:28:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:28:30,067 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:30,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2022-12-05 20:28:30,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:30,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:30,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:30,139 INFO L130 PetriNetUnfolder]: 436/752 cut-off events.
[2022-12-05 20:28:30,139 INFO L131 PetriNetUnfolder]: For 1035/1038 co-relation queries the response was YES.
[2022-12-05 20:28:30,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2074 conditions, 752 events. 436/752 cut-off events. For 1035/1038 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3400 event pairs, 204 based on Foata normal form. 24/772 useless extension candidates. Maximal degree in co-relation 2057. Up to 369 conditions per place.
[2022-12-05 20:28:30,142 INFO L137 encePairwiseOnDemand]: 19/23 looper letters, 25 selfloop transitions, 3 changer transitions 7/38 dead transitions.
[2022-12-05 20:28:30,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 38 transitions, 231 flow
[2022-12-05 20:28:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:28:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:28:30,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions.
[2022-12-05 20:28:30,142 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087
[2022-12-05 20:28:30,142 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 137 flow. Second operand 4 states and 45 transitions.
[2022-12-05 20:28:30,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 38 transitions, 231 flow
[2022-12-05 20:28:30,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 227 flow, removed 1 selfloop flow, removed 2 redundant places.
[2022-12-05 20:28:30,145 INFO L231 Difference]: Finished difference. Result has 46 places, 22 transitions, 106 flow
[2022-12-05 20:28:30,145 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=46, PETRI_TRANSITIONS=22}
[2022-12-05 20:28:30,146 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places.
[2022-12-05 20:28:30,146 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 22 transitions, 106 flow
[2022-12-05 20:28:30,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2022-12-05 20:28:30,146 INFO L205 CegarLoopForPetriNet]: Found error trace
[2022-12-05 20:28:30,146 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:30,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-12-05 20:28:30,146 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2022-12-05 20:28:30,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-05 20:28:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2078991289, now seen corresponding path program 1 times
[2022-12-05 20:28:30,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-05 20:28:30,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849844942]
[2022-12-05 20:28:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-05 20:28:30,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-05 20:28:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-05 20:28:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-05 20:28:30,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-05 20:28:30,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849844942]
[2022-12-05 20:28:30,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849844942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-05 20:28:30,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-05 20:28:30,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-05 20:28:30,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454068296]
[2022-12-05 20:28:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-05 20:28:30,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-05 20:28:30,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-05 20:28:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-05 20:28:30,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-12-05 20:28:30,251 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23
[2022-12-05 20:28:30,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 22 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2022-12-05 20:28:30,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-12-05 20:28:30,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23
[2022-12-05 20:28:30,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-12-05 20:28:30,304 INFO L130 PetriNetUnfolder]: 198/349 cut-off events.
[2022-12-05 20:28:30,304 INFO L131 PetriNetUnfolder]: For 715/718 co-relation queries the response was YES.
[2022-12-05 20:28:30,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 349 events. 198/349 cut-off events. For 715/718 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1128 event pairs, 134 based on Foata normal form. 24/370 useless extension candidates. Maximal degree in co-relation 952. Up to 231 conditions per place.
[2022-12-05 20:28:30,305 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions.
[2022-12-05 20:28:30,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 25 transitions, 144 flow
[2022-12-05 20:28:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-12-05 20:28:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-12-05 20:28:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions.
[2022-12-05 20:28:30,306 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.391304347826087
[2022-12-05 20:28:30,306 INFO L175 Difference]: Start difference. First operand has 46 places, 22 transitions, 106 flow. Second operand 4 states and 36 transitions.
[2022-12-05 20:28:30,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 25 transitions, 144 flow
[2022-12-05 20:28:30,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 108 flow, removed 6 selfloop flow, removed 12 redundant places.
[2022-12-05 20:28:30,307 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow
[2022-12-05 20:28:30,307 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0}
[2022-12-05 20:28:30,308 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places.
[2022-12-05 20:28:30,308 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow
[2022-12-05 20:28:30,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2022-12-05 20:28:30,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2022-12-05 20:28:30,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining)
[2022-12-05 20:28:30,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2022-12-05 20:28:30,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining)
[2022-12-05 20:28:30,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining)
[2022-12-05 20:28:30,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-12-05 20:28:30,310 INFO L458 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2022-12-05 20:28:30,312 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-12-05 20:28:30,312 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-12-05 20:28:30,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:28:30 BasicIcfg
[2022-12-05 20:28:30,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-12-05 20:28:30,315 INFO L158 Benchmark]: Toolchain (without parser) took 5895.91ms. Allocated memory was 178.3MB in the beginning and 326.1MB in the end (delta: 147.8MB). Free memory was 153.0MB in the beginning and 286.6MB in the end (delta: -133.6MB). Peak memory consumption was 188.9MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,315 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-12-05 20:28:30,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.41ms. Allocated memory is still 178.3MB. Free memory was 153.0MB in the beginning and 128.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.45ms. Allocated memory is still 178.3MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,316 INFO L158 Benchmark]: Boogie Preprocessor took 32.96ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,316 INFO L158 Benchmark]: RCFGBuilder took 335.55ms. Allocated memory is still 178.3MB. Free memory was 124.7MB in the beginning and 110.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,316 INFO L158 Benchmark]: TraceAbstraction took 5062.35ms. Allocated memory was 178.3MB in the beginning and 326.1MB in the end (delta: 147.8MB). Free memory was 109.0MB in the beginning and 286.6MB in the end (delta: -177.6MB). Peak memory consumption was 144.8MB. Max. memory is 8.0GB.
[2022-12-05 20:28:30,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 413.41ms. Allocated memory is still 178.3MB. Free memory was 153.0MB in the beginning and 128.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 46.45ms. Allocated memory is still 178.3MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 32.96ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 335.55ms. Allocated memory is still 178.3MB. Free memory was 124.7MB in the beginning and 110.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 5062.35ms. Allocated memory was 178.3MB in the beginning and 326.1MB in the end (delta: 147.8MB). Free memory was 109.0MB in the beginning and 286.6MB in the end (delta: -177.6MB). Peak memory consumption was 144.8MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 2.3s, 98 PlacesBefore, 35 PlacesAfterwards, 86 TransitionsBefore, 23 TransitionsAfterwards, 1704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 40 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1247, independent: 1204, independent conditional: 1204, independent unconditional: 0, dependent: 43, dependent conditional: 43, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1247, independent: 1204, independent conditional: 0, independent unconditional: 1204, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1247, independent: 1204, independent conditional: 0, independent unconditional: 1204, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1247, independent: 1204, independent conditional: 0, independent unconditional: 1204, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1044, independent: 1016, independent conditional: 0, independent unconditional: 1016, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1044, independent: 999, independent conditional: 0, independent unconditional: 999, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1247, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 1044, unknown conditional: 0, unknown unconditional: 1044] , Statistics on independence cache: Total cache size (in pairs): 1541, Positive cache size: 1513, Positive conditional cache size: 0, Positive unconditional cache size: 1513, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1
- PositiveResult [Line: 18]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 9 procedures, 135 locations, 5 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: 5.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 491 IncrementalHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 10 mSDtfsCounter, 491 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=3, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-12-05 20:28:30,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...