/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:14:40,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:14:40,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:14:40,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:14:40,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:14:40,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:14:40,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:14:40,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:14:40,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:14:40,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:14:40,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:14:40,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:14:40,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:14:40,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:14:40,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:14:40,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:14:40,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:14:40,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:14:40,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:14:40,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:14:40,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:14:40,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:14:40,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:14:40,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:14:40,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:14:41,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:14:41,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:14:41,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:14:41,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:14:41,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:14:41,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:14:41,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:14:41,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:14:41,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:14:41,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:14:41,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:14:41,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:14:41,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:14:41,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:14:41,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:14:41,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:14:41,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:14:41,037 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:14:41,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:14:41,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:14:41,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:14:41,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:14:41,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:14:41,040 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:14:41,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:14:41,040 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:14:41,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:14:41,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:14:41,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:14:41,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:14:41,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:14:41,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:14:41,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:14:41,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:14:41,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:14:41,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:14:41,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:14:41,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:14:41,327 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:14:41,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2022-12-05 20:14:42,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:14:42,597 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:14:42,598 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2022-12-05 20:14:42,618 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b653a0119/73e5347bc583440aba99b49b36e915f0/FLAG454f870d2 [2022-12-05 20:14:42,632 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b653a0119/73e5347bc583440aba99b49b36e915f0 [2022-12-05 20:14:42,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:14:42,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:14:42,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:14:42,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:14:42,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:14:42,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:14:42" (1/1) ... [2022-12-05 20:14:42,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d555e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:42, skipping insertion in model container [2022-12-05 20:14:42,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:14:42" (1/1) ... [2022-12-05 20:14:42,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:14:42,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:14:42,866 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:14:42,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2022-12-05 20:14:42,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2022-12-05 20:14:42,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:42,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:42,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:14:43,012 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:14:43,031 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 20:14:43,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2022-12-05 20:14:43,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2022-12-05 20:14:43,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:14:43,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:14:43,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:14:43,097 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:14:43,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43 WrapperNode [2022-12-05 20:14:43,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:14:43,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:14:43,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:14:43,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:14:43,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,139 INFO L138 Inliner]: procedures = 172, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-12-05 20:14:43,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:14:43,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:14:43,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:14:43,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:14:43,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:14:43,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:14:43,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:14:43,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:14:43,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (1/1) ... [2022-12-05 20:14:43,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:14:43,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:14:43,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:14:43,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:14:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-05 20:14:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-05 20:14:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:14:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:14:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:14:43,260 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:14:43,338 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:14:43,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:14:43,524 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:14:43,528 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:14:43,529 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-05 20:14:43,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:14:43 BoogieIcfgContainer [2022-12-05 20:14:43,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:14:43,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:14:43,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:14:43,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:14:43,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:14:42" (1/3) ... [2022-12-05 20:14:43,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae252d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:14:43, skipping insertion in model container [2022-12-05 20:14:43,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:14:43" (2/3) ... [2022-12-05 20:14:43,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae252d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:14:43, skipping insertion in model container [2022-12-05 20:14:43,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:14:43" (3/3) ... [2022-12-05 20:14:43,536 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2022-12-05 20:14:43,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:14:43,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 20:14:43,548 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:14:43,592 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:14:43,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 216 flow [2022-12-05 20:14:43,650 INFO L130 PetriNetUnfolder]: 13/98 cut-off events. [2022-12-05 20:14:43,650 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:14:43,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 98 events. 13/98 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-05 20:14:43,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 100 transitions, 216 flow [2022-12-05 20:14:43,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 89 transitions, 187 flow [2022-12-05 20:14:43,659 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:14:43,669 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 89 transitions, 187 flow [2022-12-05 20:14:43,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 89 transitions, 187 flow [2022-12-05 20:14:43,694 INFO L130 PetriNetUnfolder]: 13/89 cut-off events. [2022-12-05 20:14:43,694 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:14:43,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 89 events. 13/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-05 20:14:43,697 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 89 transitions, 187 flow [2022-12-05 20:14:43,697 INFO L188 LiptonReduction]: Number of co-enabled transitions 2132 [2022-12-05 20:14:45,476 INFO L203 LiptonReduction]: Total number of compositions: 62 [2022-12-05 20:14:45,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:14:45,499 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;@50637ec3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:14:45,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 20:14:45,506 INFO L130 PetriNetUnfolder]: 2/16 cut-off events. [2022-12-05 20:14:45,506 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:14:45,506 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:14:45,507 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:14:45,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:14:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:14:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash -908336825, now seen corresponding path program 1 times [2022-12-05 20:14:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:14:45,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869310271] [2022-12-05 20:14:45,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:14:45,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:14:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:14:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:14:45,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:14:45,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869310271] [2022-12-05 20:14:45,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869310271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:14:45,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:14:45,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:14:45,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646001264] [2022-12-05 20:14:45,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:14:45,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:14:45,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:14:45,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:14:45,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:14:45,716 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2022-12-05 20:14:45,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:45,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:14:45,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2022-12-05 20:14:45,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:14:45,820 INFO L130 PetriNetUnfolder]: 498/826 cut-off events. [2022-12-05 20:14:45,820 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-12-05 20:14:45,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 826 events. 498/826 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3951 event pairs, 172 based on Foata normal form. 21/572 useless extension candidates. Maximal degree in co-relation 1454. Up to 482 conditions per place. [2022-12-05 20:14:45,826 INFO L137 encePairwiseOnDemand]: 29/37 looper letters, 35 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2022-12-05 20:14:45,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 192 flow [2022-12-05 20:14:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:14:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:14:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-12-05 20:14:45,835 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6216216216216216 [2022-12-05 20:14:45,837 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 83 flow. Second operand 3 states and 69 transitions. [2022-12-05 20:14:45,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 192 flow [2022-12-05 20:14:45,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 49 transitions, 185 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:14:45,843 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 104 flow [2022-12-05 20:14:45,844 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2022-12-05 20:14:45,846 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-05 20:14:45,847 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 104 flow [2022-12-05 20:14:45,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:45,847 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:14:45,847 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:14:45,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:14:45,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:14:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:14:45,848 INFO L85 PathProgramCache]: Analyzing trace with hash -523804899, now seen corresponding path program 1 times [2022-12-05 20:14:45,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:14:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121820825] [2022-12-05 20:14:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:14:45,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:14:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:14:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:14:45,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:14:45,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121820825] [2022-12-05 20:14:45,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121820825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:14:45,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:14:45,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:14:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736984448] [2022-12-05 20:14:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:14:45,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:14:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:14:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:14:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:14:45,923 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2022-12-05 20:14:45,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 104 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) [2022-12-05 20:14:45,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:14:45,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2022-12-05 20:14:45,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:14:46,013 INFO L130 PetriNetUnfolder]: 455/758 cut-off events. [2022-12-05 20:14:46,014 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2022-12-05 20:14:46,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 758 events. 455/758 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3580 event pairs, 172 based on Foata normal form. 24/587 useless extension candidates. Maximal degree in co-relation 941. Up to 475 conditions per place. [2022-12-05 20:14:46,020 INFO L137 encePairwiseOnDemand]: 32/37 looper letters, 32 selfloop transitions, 4 changer transitions 4/48 dead transitions. [2022-12-05 20:14:46,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 207 flow [2022-12-05 20:14:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:14:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:14:46,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-12-05 20:14:46,023 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5855855855855856 [2022-12-05 20:14:46,024 INFO L175 Difference]: Start difference. First operand has 37 places, 37 transitions, 104 flow. Second operand 3 states and 65 transitions. [2022-12-05 20:14:46,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 207 flow [2022-12-05 20:14:46,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:14:46,026 INFO L231 Difference]: Finished difference. Result has 38 places, 37 transitions, 108 flow [2022-12-05 20:14:46,026 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=37} [2022-12-05 20:14:46,027 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-05 20:14:46,027 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 108 flow [2022-12-05 20:14:46,027 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) [2022-12-05 20:14:46,027 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:14:46,027 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:14:46,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:14:46,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:14:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:14:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash -537122980, now seen corresponding path program 1 times [2022-12-05 20:14:46,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:14:46,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339764863] [2022-12-05 20:14:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:14:46,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:14:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:14:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:14:46,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:14:46,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339764863] [2022-12-05 20:14:46,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339764863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:14:46,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:14:46,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:14:46,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469486454] [2022-12-05 20:14:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:14:46,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:14:46,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:14:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:14:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:14:46,134 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 37 [2022-12-05 20:14:46,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:46,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:14:46,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 37 [2022-12-05 20:14:46,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:14:46,259 INFO L130 PetriNetUnfolder]: 628/1037 cut-off events. [2022-12-05 20:14:46,260 INFO L131 PetriNetUnfolder]: For 226/226 co-relation queries the response was YES. [2022-12-05 20:14:46,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 1037 events. 628/1037 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5098 event pairs, 123 based on Foata normal form. 18/811 useless extension candidates. Maximal degree in co-relation 1613. Up to 345 conditions per place. [2022-12-05 20:14:46,264 INFO L137 encePairwiseOnDemand]: 28/37 looper letters, 51 selfloop transitions, 11 changer transitions 8/76 dead transitions. [2022-12-05 20:14:46,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 76 transitions, 345 flow [2022-12-05 20:14:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:14:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:14:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2022-12-05 20:14:46,267 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5513513513513514 [2022-12-05 20:14:46,267 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 108 flow. Second operand 5 states and 102 transitions. [2022-12-05 20:14:46,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 76 transitions, 345 flow [2022-12-05 20:14:46,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 76 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:14:46,270 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 170 flow [2022-12-05 20:14:46,271 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2022-12-05 20:14:46,272 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-05 20:14:46,272 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 170 flow [2022-12-05 20:14:46,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:46,272 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:14:46,272 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:14:46,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:14:46,273 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:14:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:14:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1092506704, now seen corresponding path program 2 times [2022-12-05 20:14:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:14:46,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486940254] [2022-12-05 20:14:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:14:46,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:14:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:14:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:14:46,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:14:46,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486940254] [2022-12-05 20:14:46,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486940254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:14:46,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:14:46,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:14:46,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929017551] [2022-12-05 20:14:46,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:14:46,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:14:46,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:14:46,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:14:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:14:46,346 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 37 [2022-12-05 20:14:46,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:46,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:14:46,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 37 [2022-12-05 20:14:46,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:14:46,447 INFO L130 PetriNetUnfolder]: 686/1065 cut-off events. [2022-12-05 20:14:46,448 INFO L131 PetriNetUnfolder]: For 674/676 co-relation queries the response was YES. [2022-12-05 20:14:46,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 1065 events. 686/1065 cut-off events. For 674/676 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4546 event pairs, 102 based on Foata normal form. 26/984 useless extension candidates. Maximal degree in co-relation 2011. Up to 287 conditions per place. [2022-12-05 20:14:46,450 INFO L137 encePairwiseOnDemand]: 28/37 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2022-12-05 20:14:46,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 81 transitions, 460 flow [2022-12-05 20:14:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:14:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:14:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2022-12-05 20:14:46,454 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5027027027027027 [2022-12-05 20:14:46,454 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 170 flow. Second operand 5 states and 93 transitions. [2022-12-05 20:14:46,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 81 transitions, 460 flow [2022-12-05 20:14:46,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 81 transitions, 447 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:14:46,459 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2022-12-05 20:14:46,459 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2022-12-05 20:14:46,460 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-05 20:14:46,460 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2022-12-05 20:14:46,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:14:46,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 20:14:46,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-05 20:14:46,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-05 20:14:46,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-05 20:14:46,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-05 20:14:46,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 20:14:46,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:14:46,464 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-05 20:14:46,467 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:14:46,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:14:46,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:14:46 BasicIcfg [2022-12-05 20:14:46,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:14:46,474 INFO L158 Benchmark]: Toolchain (without parser) took 3839.30ms. Allocated memory was 170.9MB in the beginning and 218.1MB in the end (delta: 47.2MB). Free memory was 134.9MB in the beginning and 91.2MB in the end (delta: 43.7MB). Peak memory consumption was 91.4MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,474 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 170.9MB. Free memory was 148.4MB in the beginning and 148.4MB in the end (delta: 66.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:14:46,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.43ms. Allocated memory is still 170.9MB. Free memory was 134.9MB in the beginning and 110.3MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 170.9MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,478 INFO L158 Benchmark]: Boogie Preprocessor took 26.56ms. Allocated memory is still 170.9MB. Free memory was 108.2MB in the beginning and 106.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,478 INFO L158 Benchmark]: RCFGBuilder took 362.07ms. Allocated memory is still 170.9MB. Free memory was 106.6MB in the beginning and 93.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,478 INFO L158 Benchmark]: TraceAbstraction took 2941.19ms. Allocated memory was 170.9MB in the beginning and 218.1MB in the end (delta: 47.2MB). Free memory was 91.9MB in the beginning and 91.2MB in the end (delta: 677.8kB). Peak memory consumption was 48.4MB. Max. memory is 8.0GB. [2022-12-05 20:14:46,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 170.9MB. Free memory was 148.4MB in the beginning and 148.4MB in the end (delta: 66.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 460.43ms. Allocated memory is still 170.9MB. Free memory was 134.9MB in the beginning and 110.3MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 170.9MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.56ms. Allocated memory is still 170.9MB. Free memory was 108.2MB in the beginning and 106.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 362.07ms. Allocated memory is still 170.9MB. Free memory was 106.6MB in the beginning and 93.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2941.19ms. Allocated memory was 170.9MB in the beginning and 218.1MB in the end (delta: 47.2MB). Free memory was 91.9MB in the beginning and 91.2MB in the end (delta: 677.8kB). Peak memory consumption was 48.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 83 PlacesBefore, 36 PlacesAfterwards, 89 TransitionsBefore, 37 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 62 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 1667, independent unconditional: 0, dependent: 102, dependent conditional: 102, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1769, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1281, independent: 1235, independent conditional: 0, independent unconditional: 1235, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1281, independent: 1196, independent conditional: 0, independent unconditional: 1196, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1769, independent: 432, independent conditional: 0, independent unconditional: 432, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 1281, unknown conditional: 0, unknown unconditional: 1281] , Statistics on independence cache: Total cache size (in pairs): 2000, Positive cache size: 1954, Positive conditional cache size: 0, Positive unconditional cache size: 1954, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: 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, 132 locations, 6 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 360 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4 mSDtfsCounter, 360 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:14:46,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...