/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 --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 23:52:06,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 23:52:06,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 23:52:06,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 23:52:06,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 23:52:06,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 23:52:06,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 23:52:06,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 23:52:06,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 23:52:06,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 23:52:06,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 23:52:06,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 23:52:06,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 23:52:06,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 23:52:06,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 23:52:06,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 23:52:06,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 23:52:06,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 23:52:06,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 23:52:06,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 23:52:06,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 23:52:06,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 23:52:06,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 23:52:06,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 23:52:06,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 23:52:06,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 23:52:06,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 23:52:06,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 23:52:06,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 23:52:06,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 23:52:06,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 23:52:06,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 23:52:06,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 23:52:06,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 23:52:06,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 23:52:06,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 23:52:06,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 23:52:06,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 23:52:06,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 23:52:06,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 23:52:06,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 23:52:06,115 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 [2022-12-12 23:52:06,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 23:52:06,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 23:52:06,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 23:52:06,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 23:52:06,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 23:52:06,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 23:52:06,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 23:52:06,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 23:52:06,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 23:52:06,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 23:52:06,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 23:52:06,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 23:52:06,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 23:52:06,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 23:52:06,401 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 23:52:06,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-12-12 23:52:07,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 23:52:07,714 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 23:52:07,714 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-12-12 23:52:07,732 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b4cdaff/c50dcc70f6a84995bc6d59d3c169bcef/FLAG0f1058b61 [2022-12-12 23:52:07,744 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b4cdaff/c50dcc70f6a84995bc6d59d3c169bcef [2022-12-12 23:52:07,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 23:52:07,747 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 23:52:07,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 23:52:07,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 23:52:07,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 23:52:07,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9df6be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07, skipping insertion in model container [2022-12-12 23:52:07,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 23:52:07,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 23:52:07,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,875 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-12-12 23:52:07,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 23:52:07,883 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 23:52:07,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 23:52:07,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 23:52:07,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-12-12 23:52:07,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 23:52:07,910 INFO L208 MainTranslator]: Completed translation [2022-12-12 23:52:07,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07 WrapperNode [2022-12-12 23:52:07,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 23:52:07,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 23:52:07,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 23:52:07,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 23:52:07,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,945 INFO L138 Inliner]: procedures = 21, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2022-12-12 23:52:07,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 23:52:07,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 23:52:07,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 23:52:07,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 23:52:07,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 23:52:07,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 23:52:07,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 23:52:07,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 23:52:07,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (1/1) ... [2022-12-12 23:52:07,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 23:52:07,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 23:52:08,001 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) [2022-12-12 23:52:08,015 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 [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 23:52:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 23:52:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 23:52:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 23:52:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 23:52:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 23:52:08,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 23:52:08,045 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 23:52:08,131 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 23:52:08,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 23:52:08,357 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 23:52:08,410 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 23:52:08,411 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 23:52:08,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:52:08 BoogieIcfgContainer [2022-12-12 23:52:08,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 23:52:08,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 23:52:08,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 23:52:08,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 23:52:08,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 11:52:07" (1/3) ... [2022-12-12 23:52:08,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594c677b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:52:08, skipping insertion in model container [2022-12-12 23:52:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:52:07" (2/3) ... [2022-12-12 23:52:08,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594c677b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:52:08, skipping insertion in model container [2022-12-12 23:52:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:52:08" (3/3) ... [2022-12-12 23:52:08,418 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2022-12-12 23:52:08,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 23:52:08,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 23:52:08,443 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 23:52:08,504 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 23:52:08,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions, 172 flow [2022-12-12 23:52:08,575 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2022-12-12 23:52:08,576 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 23:52:08,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 1/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-12 23:52:08,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 78 transitions, 172 flow [2022-12-12 23:52:08,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 68 transitions, 148 flow [2022-12-12 23:52:08,582 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 23:52:08,633 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 68 transitions, 148 flow [2022-12-12 23:52:08,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 68 transitions, 148 flow [2022-12-12 23:52:08,663 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-12 23:52:08,663 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 23:52:08,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 68 events. 1/68 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-12-12 23:52:08,665 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 68 transitions, 148 flow [2022-12-12 23:52:08,665 INFO L226 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-12 23:52:10,277 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-12 23:52:10,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 23:52:10,299 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;@4f67f4af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 23:52:10,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 23:52:10,322 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-12 23:52:10,322 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 23:52:10,323 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:10,328 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:10,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash -900198371, now seen corresponding path program 1 times [2022-12-12 23:52:10,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:10,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269783874] [2022-12-12 23:52:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:10,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:10,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269783874] [2022-12-12 23:52:10,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269783874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:10,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:10,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 23:52:10,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536891598] [2022-12-12 23:52:10,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:10,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:10,867 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-12 23:52:10,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 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) [2022-12-12 23:52:10,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:10,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-12 23:52:10,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:11,170 INFO L130 PetriNetUnfolder]: 217/431 cut-off events. [2022-12-12 23:52:11,171 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-12 23:52:11,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 431 events. 217/431 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1557 event pairs, 95 based on Foata normal form. 1/432 useless extension candidates. Maximal degree in co-relation 756. Up to 180 conditions per place. [2022-12-12 23:52:11,176 INFO L137 encePairwiseOnDemand]: 17/23 looper letters, 42 selfloop transitions, 6 changer transitions 14/62 dead transitions. [2022-12-12 23:52:11,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 62 transitions, 281 flow [2022-12-12 23:52:11,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 23:52:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 23:52:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 63 transitions. [2022-12-12 23:52:11,186 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.391304347826087 [2022-12-12 23:52:11,190 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2022-12-12 23:52:11,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 62 transitions, 281 flow [2022-12-12 23:52:11,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 48 transitions, 219 flow [2022-12-12 23:52:11,194 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 48 transitions, 219 flow [2022-12-12 23:52:11,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 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) [2022-12-12 23:52:11,195 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:11,195 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:11,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 23:52:11,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:11,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:11,196 INFO L85 PathProgramCache]: Analyzing trace with hash -180196209, now seen corresponding path program 2 times [2022-12-12 23:52:11,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:11,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859937588] [2022-12-12 23:52:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:11,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:11,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:11,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859937588] [2022-12-12 23:52:11,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859937588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:11,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:11,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 23:52:11,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710106885] [2022-12-12 23:52:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:11,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:11,365 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:11,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 48 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:11,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:11,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:11,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:11,515 INFO L130 PetriNetUnfolder]: 334/693 cut-off events. [2022-12-12 23:52:11,516 INFO L131 PetriNetUnfolder]: For 201/201 co-relation queries the response was YES. [2022-12-12 23:52:11,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 693 events. 334/693 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3206 event pairs, 31 based on Foata normal form. 10/703 useless extension candidates. Maximal degree in co-relation 1669. Up to 308 conditions per place. [2022-12-12 23:52:11,521 INFO L137 encePairwiseOnDemand]: 15/23 looper letters, 106 selfloop transitions, 29 changer transitions 0/143 dead transitions. [2022-12-12 23:52:11,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 143 transitions, 911 flow [2022-12-12 23:52:11,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 23:52:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 23:52:11,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 99 transitions. [2022-12-12 23:52:11,525 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2022-12-12 23:52:11,525 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2022-12-12 23:52:11,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 143 transitions, 911 flow [2022-12-12 23:52:11,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 143 transitions, 911 flow [2022-12-12 23:52:11,529 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 143 transitions, 911 flow [2022-12-12 23:52:11,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:11,529 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:11,529 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:11,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 23:52:11,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash -440140095, now seen corresponding path program 3 times [2022-12-12 23:52:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:11,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851576143] [2022-12-12 23:52:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:11,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851576143] [2022-12-12 23:52:11,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851576143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:11,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:11,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 23:52:11,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869116166] [2022-12-12 23:52:11,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:11,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:11,723 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:11,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 143 transitions, 911 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:11,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:11,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:11,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:11,884 INFO L130 PetriNetUnfolder]: 368/795 cut-off events. [2022-12-12 23:52:11,884 INFO L131 PetriNetUnfolder]: For 637/637 co-relation queries the response was YES. [2022-12-12 23:52:11,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 795 events. 368/795 cut-off events. For 637/637 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3965 event pairs, 39 based on Foata normal form. 10/805 useless extension candidates. Maximal degree in co-relation 2356. Up to 336 conditions per place. [2022-12-12 23:52:11,888 INFO L137 encePairwiseOnDemand]: 15/23 looper letters, 156 selfloop transitions, 19 changer transitions 0/183 dead transitions. [2022-12-12 23:52:11,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 183 transitions, 1534 flow [2022-12-12 23:52:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 23:52:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 23:52:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2022-12-12 23:52:11,889 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2022-12-12 23:52:11,890 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 17 predicate places. [2022-12-12 23:52:11,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 183 transitions, 1534 flow [2022-12-12 23:52:11,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 183 transitions, 1534 flow [2022-12-12 23:52:11,893 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 183 transitions, 1534 flow [2022-12-12 23:52:11,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:11,893 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:11,894 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:11,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 23:52:11,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash 943457459, now seen corresponding path program 4 times [2022-12-12 23:52:11,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:11,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278042902] [2022-12-12 23:52:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:11,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:11,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278042902] [2022-12-12 23:52:11,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278042902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:11,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:11,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 23:52:11,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507156392] [2022-12-12 23:52:11,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:11,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 23:52:11,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:11,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 23:52:11,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 23:52:11,944 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:11,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 183 transitions, 1534 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 23:52:11,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:11,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:11,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:12,011 INFO L130 PetriNetUnfolder]: 352/771 cut-off events. [2022-12-12 23:52:12,012 INFO L131 PetriNetUnfolder]: For 1258/1258 co-relation queries the response was YES. [2022-12-12 23:52:12,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3456 conditions, 771 events. 352/771 cut-off events. For 1258/1258 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3868 event pairs, 35 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 2761. Up to 576 conditions per place. [2022-12-12 23:52:12,029 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 170 selfloop transitions, 10 changer transitions 0/188 dead transitions. [2022-12-12 23:52:12,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 188 transitions, 1937 flow [2022-12-12 23:52:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 23:52:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 23:52:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-12 23:52:12,030 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2022-12-12 23:52:12,031 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 19 predicate places. [2022-12-12 23:52:12,031 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 188 transitions, 1937 flow [2022-12-12 23:52:12,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 188 transitions, 1937 flow [2022-12-12 23:52:12,035 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 188 transitions, 1937 flow [2022-12-12 23:52:12,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 23:52:12,035 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:12,035 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:12,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 23:52:12,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:12,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2045908637, now seen corresponding path program 5 times [2022-12-12 23:52:12,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:12,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041710083] [2022-12-12 23:52:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:12,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:12,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041710083] [2022-12-12 23:52:12,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041710083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:12,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:12,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 23:52:12,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554103002] [2022-12-12 23:52:12,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:12,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:12,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:12,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:12,172 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-12 23:52:12,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 188 transitions, 1937 flow. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 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) [2022-12-12 23:52:12,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:12,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-12 23:52:12,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:12,329 INFO L130 PetriNetUnfolder]: 352/767 cut-off events. [2022-12-12 23:52:12,329 INFO L131 PetriNetUnfolder]: For 1258/1258 co-relation queries the response was YES. [2022-12-12 23:52:12,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4204 conditions, 767 events. 352/767 cut-off events. For 1258/1258 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3848 event pairs, 35 based on Foata normal form. 4/771 useless extension candidates. Maximal degree in co-relation 3394. Up to 572 conditions per place. [2022-12-12 23:52:12,333 INFO L137 encePairwiseOnDemand]: 18/23 looper letters, 87 selfloop transitions, 5 changer transitions 104/196 dead transitions. [2022-12-12 23:52:12,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 196 transitions, 2418 flow [2022-12-12 23:52:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 23:52:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 23:52:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 52 transitions. [2022-12-12 23:52:12,334 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.32298136645962733 [2022-12-12 23:52:12,336 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 25 predicate places. [2022-12-12 23:52:12,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 196 transitions, 2418 flow [2022-12-12 23:52:12,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 92 transitions, 1122 flow [2022-12-12 23:52:12,338 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 92 transitions, 1122 flow [2022-12-12 23:52:12,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 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) [2022-12-12 23:52:12,339 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:12,339 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:12,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 23:52:12,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash -547579693, now seen corresponding path program 6 times [2022-12-12 23:52:12,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:12,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914896081] [2022-12-12 23:52:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:12,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:12,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914896081] [2022-12-12 23:52:12,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914896081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:12,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:12,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 23:52:12,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79920493] [2022-12-12 23:52:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:12,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 23:52:12,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 23:52:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 23:52:12,445 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:12,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 92 transitions, 1122 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 23:52:12,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:12,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:12,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:12,493 INFO L130 PetriNetUnfolder]: 172/423 cut-off events. [2022-12-12 23:52:12,493 INFO L131 PetriNetUnfolder]: For 1087/1087 co-relation queries the response was YES. [2022-12-12 23:52:12,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 423 events. 172/423 cut-off events. For 1087/1087 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1917 event pairs, 28 based on Foata normal form. 4/427 useless extension candidates. Maximal degree in co-relation 2471. Up to 324 conditions per place. [2022-12-12 23:52:12,496 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 90 selfloop transitions, 5 changer transitions 3/104 dead transitions. [2022-12-12 23:52:12,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 104 transitions, 1465 flow [2022-12-12 23:52:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 23:52:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 23:52:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-12 23:52:12,497 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2022-12-12 23:52:12,498 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 22 predicate places. [2022-12-12 23:52:12,498 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 104 transitions, 1465 flow [2022-12-12 23:52:12,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 101 transitions, 1423 flow [2022-12-12 23:52:12,501 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 101 transitions, 1423 flow [2022-12-12 23:52:12,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 23:52:12,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:12,501 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:12,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 23:52:12,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash 149730515, now seen corresponding path program 7 times [2022-12-12 23:52:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:12,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751769028] [2022-12-12 23:52:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:12,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:12,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:12,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751769028] [2022-12-12 23:52:12,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751769028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:12,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:12,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 23:52:12,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407301699] [2022-12-12 23:52:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:12,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:12,648 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:12,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 101 transitions, 1423 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:12,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:12,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:12,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:12,727 INFO L130 PetriNetUnfolder]: 118/283 cut-off events. [2022-12-12 23:52:12,727 INFO L131 PetriNetUnfolder]: For 1052/1052 co-relation queries the response was YES. [2022-12-12 23:52:12,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2002 conditions, 283 events. 118/283 cut-off events. For 1052/1052 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1053 event pairs, 16 based on Foata normal form. 8/291 useless extension candidates. Maximal degree in co-relation 1888. Up to 218 conditions per place. [2022-12-12 23:52:12,729 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 39 selfloop transitions, 3 changer transitions 22/70 dead transitions. [2022-12-12 23:52:12,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 70 transitions, 1090 flow [2022-12-12 23:52:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 23:52:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 23:52:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-12 23:52:12,731 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46956521739130436 [2022-12-12 23:52:12,731 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 25 predicate places. [2022-12-12 23:52:12,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 70 transitions, 1090 flow [2022-12-12 23:52:12,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 48 transitions, 732 flow [2022-12-12 23:52:12,733 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 732 flow [2022-12-12 23:52:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:12,733 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 23:52:12,733 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:52:12,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 23:52:12,733 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 23:52:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 23:52:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash -17562011, now seen corresponding path program 8 times [2022-12-12 23:52:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 23:52:12,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270685346] [2022-12-12 23:52:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 23:52:12,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 23:52:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 23:52:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 23:52:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 23:52:12,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270685346] [2022-12-12 23:52:12,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270685346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 23:52:12,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 23:52:12,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 23:52:12,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461499564] [2022-12-12 23:52:12,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 23:52:12,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 23:52:12,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 23:52:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 23:52:12,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 23:52:12,836 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-12 23:52:12,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 732 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:12,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 23:52:12,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-12 23:52:12,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 23:52:12,900 INFO L130 PetriNetUnfolder]: 37/88 cut-off events. [2022-12-12 23:52:12,900 INFO L131 PetriNetUnfolder]: For 291/291 co-relation queries the response was YES. [2022-12-12 23:52:12,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 88 events. 37/88 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 6 based on Foata normal form. 8/96 useless extension candidates. Maximal degree in co-relation 680. Up to 72 conditions per place. [2022-12-12 23:52:12,901 INFO L137 encePairwiseOnDemand]: 17/23 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2022-12-12 23:52:12,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 24 transitions, 414 flow [2022-12-12 23:52:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 23:52:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 23:52:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2022-12-12 23:52:12,901 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.30434782608695654 [2022-12-12 23:52:12,903 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 18 predicate places. [2022-12-12 23:52:12,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 24 transitions, 414 flow [2022-12-12 23:52:12,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 23:52:12,903 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 23:52:12,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2022-12-12 23:52:12,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 23:52:12,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 23:52:12,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 23:52:12,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 23:52:12,907 INFO L445 BasicCegarLoop]: Path program histogram: [8] [2022-12-12 23:52:12,910 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 23:52:12,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 23:52:12,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 11:52:12 BasicIcfg [2022-12-12 23:52:12,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 23:52:12,915 INFO L158 Benchmark]: Toolchain (without parser) took 5168.36ms. Allocated memory was 243.3MB in the beginning and 298.8MB in the end (delta: 55.6MB). Free memory was 218.6MB in the beginning and 153.1MB in the end (delta: 65.5MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,916 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 243.3MB. Free memory was 219.3MB in the beginning and 219.2MB in the end (delta: 174.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 23:52:12,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.19ms. Allocated memory is still 243.3MB. Free memory was 218.1MB in the beginning and 203.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.36ms. Allocated memory is still 243.3MB. Free memory was 203.4MB in the beginning and 201.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,916 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 243.3MB. Free memory was 201.8MB in the beginning and 200.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,916 INFO L158 Benchmark]: RCFGBuilder took 441.35ms. Allocated memory is still 243.3MB. Free memory was 200.3MB in the beginning and 185.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,917 INFO L158 Benchmark]: TraceAbstraction took 4501.00ms. Allocated memory was 243.3MB in the beginning and 298.8MB in the end (delta: 55.6MB). Free memory was 184.0MB in the beginning and 153.1MB in the end (delta: 30.9MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2022-12-12 23:52:12,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 243.3MB. Free memory was 219.3MB in the beginning and 219.2MB in the end (delta: 174.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.19ms. Allocated memory is still 243.3MB. Free memory was 218.1MB in the beginning and 203.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.36ms. Allocated memory is still 243.3MB. Free memory was 203.4MB in the beginning and 201.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 243.3MB. Free memory was 201.8MB in the beginning and 200.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 441.35ms. Allocated memory is still 243.3MB. Free memory was 200.3MB in the beginning and 185.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4501.00ms. Allocated memory was 243.3MB in the beginning and 298.8MB in the end (delta: 55.6MB). Free memory was 184.0MB in the beginning and 153.1MB in the end (delta: 30.9MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 74 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 29 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 376, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 330, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 330, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 428, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 330, unknown conditional: 0, unknown unconditional: 330] , Statistics on independence cache: Total cache size (in pairs): 409, Positive cache size: 380, Positive conditional cache size: 0, Positive unconditional cache size: 380, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 116]: 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 5 procedures, 104 locations, 3 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: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 876 IncrementalHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 876 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1937occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2172 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 636 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-12 23:52:12,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...