/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:29:23,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:29:23,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:29:23,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:29:23,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:29:23,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:29:23,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:29:23,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:29:23,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:29:23,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:29:23,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:29:23,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:29:23,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:29:23,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:29:23,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:29:23,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:29:23,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:29:23,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:29:23,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:29:23,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:29:23,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:29:23,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:29:23,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:29:23,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:29:23,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:29:23,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:29:23,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:29:23,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:29:23,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:29:23,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:29:23,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:29:23,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:29:23,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:29:23,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:29:23,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:29:23,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:29:23,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:29:23,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:29:23,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:29:24,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:29:24,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:29:24,001 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 18:29:24,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:29:24,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:29:24,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:29:24,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:29:24,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:29:24,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:29:24,028 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:29:24,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:29:24,028 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:29:24,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:29:24,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:29:24,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:29:24,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:29:24,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:29:24,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:29:24,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:29:24,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:29:24,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:29:24,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:29:24,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:29:24,320 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:29:24,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2022-12-12 18:29:25,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:29:25,462 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:29:25,462 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2022-12-12 18:29:25,473 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee1f9d2d/2b36607becc34946a1765ee3dbad238d/FLAGca7a4920b [2022-12-12 18:29:25,482 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee1f9d2d/2b36607becc34946a1765ee3dbad238d [2022-12-12 18:29:25,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:29:25,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:29:25,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:29:25,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:29:25,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:29:25,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1a7d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25, skipping insertion in model container [2022-12-12 18:29:25,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:29:25,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:29:25,694 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:29:25,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,819 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/lamport.i[32156,32169] [2022-12-12 18:29:25,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,833 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/lamport.i[34083,34096] [2022-12-12 18:29:25,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:29:25,850 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:29:25,867 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:29:25,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,887 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/lamport.i[32156,32169] [2022-12-12 18:29:25,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,894 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/lamport.i[34083,34096] [2022-12-12 18:29:25,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:25,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:25,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:29:25,936 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:29:25,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25 WrapperNode [2022-12-12 18:29:25,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:29:25,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:29:25,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:29:25,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:29:25,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,986 INFO L138 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-12-12 18:29:25,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:29:25,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:29:25,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:29:25,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:29:25,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:25,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:29:26,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:29:26,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:29:26,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:29:26,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (1/1) ... [2022-12-12 18:29:26,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:29:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:29:26,054 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 18:29:26,070 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 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-12 18:29:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-12 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-12 18:29:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-12 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:29:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:29:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:29:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:29:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:29:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:29:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:29:26,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:29:26,083 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 18:29:26,220 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:29:26,224 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:29:26,374 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:29:26,379 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:29:26,379 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-12 18:29:26,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:29:26 BoogieIcfgContainer [2022-12-12 18:29:26,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:29:26,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:29:26,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:29:26,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:29:26,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:29:25" (1/3) ... [2022-12-12 18:29:26,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b4204d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:29:26, skipping insertion in model container [2022-12-12 18:29:26,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:25" (2/3) ... [2022-12-12 18:29:26,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b4204d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:29:26, skipping insertion in model container [2022-12-12 18:29:26,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:29:26" (3/3) ... [2022-12-12 18:29:26,386 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport.i [2022-12-12 18:29:26,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:29:26,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 18:29:26,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:29:26,443 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 18:29:26,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 129 transitions, 274 flow [2022-12-12 18:29:26,497 INFO L130 PetriNetUnfolder]: 24/127 cut-off events. [2022-12-12 18:29:26,497 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 18:29:26,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 127 events. 24/127 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 253 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2022-12-12 18:29:26,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 129 transitions, 274 flow [2022-12-12 18:29:26,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 118 transitions, 245 flow [2022-12-12 18:29:26,511 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:29:26,526 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 118 transitions, 245 flow [2022-12-12 18:29:26,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 118 transitions, 245 flow [2022-12-12 18:29:26,585 INFO L130 PetriNetUnfolder]: 24/118 cut-off events. [2022-12-12 18:29:26,585 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 18:29:26,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 24/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 249 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2022-12-12 18:29:26,589 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 118 transitions, 245 flow [2022-12-12 18:29:26,589 INFO L226 LiptonReduction]: Number of co-enabled transitions 4988 [2022-12-12 18:29:28,448 INFO L241 LiptonReduction]: Total number of compositions: 66 [2022-12-12 18:29:28,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:29:28,466 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;@c338852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:29:28,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 18:29:28,468 INFO L130 PetriNetUnfolder]: 3/17 cut-off events. [2022-12-12 18:29:28,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:29:28,468 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:28,469 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 18:29:28,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:28,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:28,473 INFO L85 PathProgramCache]: Analyzing trace with hash 16858761, now seen corresponding path program 1 times [2022-12-12 18:29:28,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:28,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684114492] [2022-12-12 18:29:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:28,593 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 18:29:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:28,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684114492] [2022-12-12 18:29:28,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684114492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:28,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:28,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:29:28,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222459592] [2022-12-12 18:29:28,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:28,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 18:29:28,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 18:29:28,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 18:29:28,621 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 99 [2022-12-12 18:29:28,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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 18:29:28,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:28,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 99 [2022-12-12 18:29:28,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:28,937 INFO L130 PetriNetUnfolder]: 2493/4583 cut-off events. [2022-12-12 18:29:28,937 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-12 18:29:28,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8128 conditions, 4583 events. 2493/4583 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 33000 event pairs, 1446 based on Foata normal form. 0/2851 useless extension candidates. Maximal degree in co-relation 7894. Up to 3490 conditions per place. [2022-12-12 18:29:28,962 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 52 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2022-12-12 18:29:28,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 291 flow [2022-12-12 18:29:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 18:29:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 18:29:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 136 transitions. [2022-12-12 18:29:28,972 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6868686868686869 [2022-12-12 18:29:28,975 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -1 predicate places. [2022-12-12 18:29:28,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 89 transitions, 291 flow [2022-12-12 18:29:28,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 89 transitions, 291 flow [2022-12-12 18:29:28,992 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 89 transitions, 291 flow [2022-12-12 18:29:28,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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 18:29:28,992 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:28,992 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:28,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:29:28,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:28,999 INFO L85 PathProgramCache]: Analyzing trace with hash -410138498, now seen corresponding path program 1 times [2022-12-12 18:29:28,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:29,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123346547] [2022-12-12 18:29:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:29,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:29,067 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 18:29:29,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:29,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123346547] [2022-12-12 18:29:29,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123346547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:29,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:29,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:29:29,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574255312] [2022-12-12 18:29:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:29,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:29,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:29,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:29,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:29,070 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 99 [2022-12-12 18:29:29,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 89 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 18:29:29,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:29,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 99 [2022-12-12 18:29:29,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:29,360 INFO L130 PetriNetUnfolder]: 2946/5098 cut-off events. [2022-12-12 18:29:29,361 INFO L131 PetriNetUnfolder]: For 731/917 co-relation queries the response was YES. [2022-12-12 18:29:29,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13305 conditions, 5098 events. 2946/5098 cut-off events. For 731/917 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 35179 event pairs, 1206 based on Foata normal form. 65/3233 useless extension candidates. Maximal degree in co-relation 12882. Up to 3919 conditions per place. [2022-12-12 18:29:29,381 INFO L137 encePairwiseOnDemand]: 92/99 looper letters, 73 selfloop transitions, 5 changer transitions 9/119 dead transitions. [2022-12-12 18:29:29,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 119 transitions, 582 flow [2022-12-12 18:29:29,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2022-12-12 18:29:29,385 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.622895622895623 [2022-12-12 18:29:29,385 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2022-12-12 18:29:29,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 119 transitions, 582 flow [2022-12-12 18:29:29,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 110 transitions, 530 flow [2022-12-12 18:29:29,409 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 110 transitions, 530 flow [2022-12-12 18:29:29,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 18:29:29,409 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:29,409 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:29,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:29:29,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1814701919, now seen corresponding path program 1 times [2022-12-12 18:29:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:29,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992705441] [2022-12-12 18:29:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:29,469 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 18:29:29,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:29,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992705441] [2022-12-12 18:29:29,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992705441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:29,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:29,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:29:29,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128861211] [2022-12-12 18:29:29,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:29,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:29,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:29,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:29,471 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 99 [2022-12-12 18:29:29,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 110 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 18:29:29,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:29,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 99 [2022-12-12 18:29:29,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:29,723 INFO L130 PetriNetUnfolder]: 2120/3808 cut-off events. [2022-12-12 18:29:29,723 INFO L131 PetriNetUnfolder]: For 1383/1773 co-relation queries the response was YES. [2022-12-12 18:29:29,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12774 conditions, 3808 events. 2120/3808 cut-off events. For 1383/1773 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 25760 event pairs, 867 based on Foata normal form. 136/2663 useless extension candidates. Maximal degree in co-relation 12361. Up to 2857 conditions per place. [2022-12-12 18:29:29,738 INFO L137 encePairwiseOnDemand]: 92/99 looper letters, 58 selfloop transitions, 4 changer transitions 13/107 dead transitions. [2022-12-12 18:29:29,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 666 flow [2022-12-12 18:29:29,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2022-12-12 18:29:29,739 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2022-12-12 18:29:29,740 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2022-12-12 18:29:29,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 107 transitions, 666 flow [2022-12-12 18:29:29,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 94 transitions, 561 flow [2022-12-12 18:29:29,750 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 94 transitions, 561 flow [2022-12-12 18:29:29,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 18:29:29,751 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:29,751 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:29,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:29:29,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:29,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:29,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1345704702, now seen corresponding path program 1 times [2022-12-12 18:29:29,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:29,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713591728] [2022-12-12 18:29:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:29,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:29,794 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 18:29:29,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:29,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713591728] [2022-12-12 18:29:29,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713591728] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:29,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:29,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:29:29,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264958088] [2022-12-12 18:29:29,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:29,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:29,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:29,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:29,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:29,796 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 99 [2022-12-12 18:29:29,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 94 transitions, 561 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 18:29:29,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:29,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 99 [2022-12-12 18:29:29,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:30,102 INFO L130 PetriNetUnfolder]: 3101/5733 cut-off events. [2022-12-12 18:29:30,102 INFO L131 PetriNetUnfolder]: For 5208/5481 co-relation queries the response was YES. [2022-12-12 18:29:30,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22801 conditions, 5733 events. 3101/5733 cut-off events. For 5208/5481 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 42952 event pairs, 726 based on Foata normal form. 98/4314 useless extension candidates. Maximal degree in co-relation 22055. Up to 4041 conditions per place. [2022-12-12 18:29:30,126 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 103 selfloop transitions, 3 changer transitions 4/142 dead transitions. [2022-12-12 18:29:30,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 142 transitions, 1144 flow [2022-12-12 18:29:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2022-12-12 18:29:30,127 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6094276094276094 [2022-12-12 18:29:30,127 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -7 predicate places. [2022-12-12 18:29:30,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 142 transitions, 1144 flow [2022-12-12 18:29:30,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 138 transitions, 1128 flow [2022-12-12 18:29:30,145 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 138 transitions, 1128 flow [2022-12-12 18:29:30,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 18:29:30,146 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:30,146 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:30,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:29:30,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:30,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash -224447644, now seen corresponding path program 2 times [2022-12-12 18:29:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:30,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868260651] [2022-12-12 18:29:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:30,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:30,175 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 18:29:30,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:30,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868260651] [2022-12-12 18:29:30,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868260651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:30,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:30,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:29:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585888727] [2022-12-12 18:29:30,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:30,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:30,177 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 99 [2022-12-12 18:29:30,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 138 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:29:30,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:30,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 99 [2022-12-12 18:29:30,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:30,740 INFO L130 PetriNetUnfolder]: 6227/10632 cut-off events. [2022-12-12 18:29:30,740 INFO L131 PetriNetUnfolder]: For 19359/19772 co-relation queries the response was YES. [2022-12-12 18:29:30,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49507 conditions, 10632 events. 6227/10632 cut-off events. For 19359/19772 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 75000 event pairs, 1085 based on Foata normal form. 243/8129 useless extension candidates. Maximal degree in co-relation 48578. Up to 7222 conditions per place. [2022-12-12 18:29:30,784 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 170 selfloop transitions, 8 changer transitions 18/223 dead transitions. [2022-12-12 18:29:30,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 223 transitions, 2309 flow [2022-12-12 18:29:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2022-12-12 18:29:30,786 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5959595959595959 [2022-12-12 18:29:30,786 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -7 predicate places. [2022-12-12 18:29:30,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 223 transitions, 2309 flow [2022-12-12 18:29:30,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 205 transitions, 2093 flow [2022-12-12 18:29:30,813 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 205 transitions, 2093 flow [2022-12-12 18:29:30,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:29:30,813 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:30,813 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:30,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:29:30,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:30,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:30,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1800915650, now seen corresponding path program 3 times [2022-12-12 18:29:30,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:30,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925885194] [2022-12-12 18:29:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:30,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:30,855 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 18:29:30,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925885194] [2022-12-12 18:29:30,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925885194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:30,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:30,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:29:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991818577] [2022-12-12 18:29:30,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:30,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:30,857 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 99 [2022-12-12 18:29:30,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 205 transitions, 2093 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:29:30,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:30,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 99 [2022-12-12 18:29:30,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:31,499 INFO L130 PetriNetUnfolder]: 5147/9143 cut-off events. [2022-12-12 18:29:31,499 INFO L131 PetriNetUnfolder]: For 20093/20674 co-relation queries the response was YES. [2022-12-12 18:29:31,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 9143 events. 5147/9143 cut-off events. For 20093/20674 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 66654 event pairs, 667 based on Foata normal form. 123/7019 useless extension candidates. Maximal degree in co-relation 48269. Up to 6108 conditions per place. [2022-12-12 18:29:31,532 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 171 selfloop transitions, 11 changer transitions 60/269 dead transitions. [2022-12-12 18:29:31,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 269 transitions, 3311 flow [2022-12-12 18:29:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2022-12-12 18:29:31,533 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5622895622895623 [2022-12-12 18:29:31,535 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -5 predicate places. [2022-12-12 18:29:31,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 269 transitions, 3311 flow [2022-12-12 18:29:31,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 209 transitions, 2489 flow [2022-12-12 18:29:31,556 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 209 transitions, 2489 flow [2022-12-12 18:29:31,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:29:31,556 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:31,556 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:29:31,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:29:31,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 945443714, now seen corresponding path program 4 times [2022-12-12 18:29:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:31,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338101262] [2022-12-12 18:29:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:31,608 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 18:29:31,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:31,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338101262] [2022-12-12 18:29:31,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338101262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:31,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:31,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:29:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619898405] [2022-12-12 18:29:31,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:29:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:29:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:29:31,610 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 99 [2022-12-12 18:29:31,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 209 transitions, 2489 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 18:29:31,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:31,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 99 [2022-12-12 18:29:31,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:32,090 INFO L130 PetriNetUnfolder]: 3645/6976 cut-off events. [2022-12-12 18:29:32,091 INFO L131 PetriNetUnfolder]: For 22930/23541 co-relation queries the response was YES. [2022-12-12 18:29:32,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41644 conditions, 6976 events. 3645/6976 cut-off events. For 22930/23541 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 50383 event pairs, 340 based on Foata normal form. 230/5583 useless extension candidates. Maximal degree in co-relation 40581. Up to 4579 conditions per place. [2022-12-12 18:29:32,113 INFO L137 encePairwiseOnDemand]: 95/99 looper letters, 149 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2022-12-12 18:29:32,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 194 transitions, 2566 flow [2022-12-12 18:29:32,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:29:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:29:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2022-12-12 18:29:32,114 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-12 18:29:32,114 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2022-12-12 18:29:32,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 194 transitions, 2566 flow [2022-12-12 18:29:32,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 194 transitions, 2566 flow [2022-12-12 18:29:32,130 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 194 transitions, 2566 flow [2022-12-12 18:29:32,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 18:29:32,130 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:32,130 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] [2022-12-12 18:29:32,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:29:32,130 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:32,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:32,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1174844263, now seen corresponding path program 1 times [2022-12-12 18:29:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:32,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067984442] [2022-12-12 18:29:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:32,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:32,160 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 18:29:32,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:32,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067984442] [2022-12-12 18:29:32,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067984442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:32,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:32,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:29:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632020704] [2022-12-12 18:29:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:32,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:29:32,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:32,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:29:32,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:29:32,162 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 99 [2022-12-12 18:29:32,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 194 transitions, 2566 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 18:29:32,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:32,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 99 [2022-12-12 18:29:32,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:32,707 INFO L130 PetriNetUnfolder]: 3434/6391 cut-off events. [2022-12-12 18:29:32,709 INFO L131 PetriNetUnfolder]: For 32586/32857 co-relation queries the response was YES. [2022-12-12 18:29:32,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42575 conditions, 6391 events. 3434/6391 cut-off events. For 32586/32857 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 43994 event pairs, 275 based on Foata normal form. 50/4980 useless extension candidates. Maximal degree in co-relation 41494. Up to 4115 conditions per place. [2022-12-12 18:29:32,733 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 95 selfloop transitions, 6 changer transitions 144/279 dead transitions. [2022-12-12 18:29:32,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 279 transitions, 4318 flow [2022-12-12 18:29:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:29:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:29:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 256 transitions. [2022-12-12 18:29:32,735 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5171717171717172 [2022-12-12 18:29:32,737 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2022-12-12 18:29:32,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 279 transitions, 4318 flow [2022-12-12 18:29:32,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 135 transitions, 1958 flow [2022-12-12 18:29:32,753 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 135 transitions, 1958 flow [2022-12-12 18:29:32,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 18:29:32,753 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:32,753 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] [2022-12-12 18:29:32,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 18:29:32,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 18:29:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 808045401, now seen corresponding path program 1 times [2022-12-12 18:29:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:32,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420794634] [2022-12-12 18:29:32,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:29:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:29:32,809 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 18:29:32,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:29:32,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420794634] [2022-12-12 18:29:32,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420794634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:29:32,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:29:32,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:29:32,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211183705] [2022-12-12 18:29:32,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:29:32,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:29:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:29:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:29:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:29:32,813 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 99 [2022-12-12 18:29:32,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 135 transitions, 1958 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 18:29:32,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:29:32,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 99 [2022-12-12 18:29:32,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:29:33,024 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([475] L767-->thr1FINAL: Formula: (and (= v_~b1~0_25 0) (= |v_thr1Thread1of1ForFork1_#res.base_5| 0) (= |v_thr1Thread1of1ForFork1_#res.offset_5| 0)) InVars {} OutVars{thr1Thread1of1ForFork1_#res.base=|v_thr1Thread1of1ForFork1_#res.base_5|, thr1Thread1of1ForFork1_#res.offset=|v_thr1Thread1of1ForFork1_#res.offset_5|, ~b1~0=v_~b1~0_25} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#res.base, thr1Thread1of1ForFork1_#res.offset, ~b1~0][156], [154#true, 157#true, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, 115#true, thr2Thread1of1ForFork0InUse, 160#true, 135#true, 169#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,024 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,024 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,024 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,024 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,024 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L767-->thr1EXIT: Formula: (and (= |v_thr1Thread1of1ForFork1_#res.base_9| 0) (= v_~b1~0_30 0) (= |v_thr1Thread1of1ForFork1_#res.offset_9| 0)) InVars {} OutVars{thr1Thread1of1ForFork1_#res.base=|v_thr1Thread1of1ForFork1_#res.base_9|, thr1Thread1of1ForFork1_#res.offset=|v_thr1Thread1of1ForFork1_#res.offset_9|, ~b1~0=v_~b1~0_30} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#res.base, thr1Thread1of1ForFork1_#res.offset, ~b1~0][157], [154#true, 157#true, 53#thr1EXITtrue, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, 115#true, thr2Thread1of1ForFork0InUse, 160#true, 169#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,025 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([412] L767-->L770: Formula: (= v_~b1~0_6 0) InVars {} OutVars{~b1~0=v_~b1~0_6} AuxVars[] AssignedVars[~b1~0][158], [154#true, 157#true, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, 115#true, thr2Thread1of1ForFork0InUse, 160#true, 169#true, 128#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,025 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,025 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,026 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([475] L767-->thr1FINAL: Formula: (and (= v_~b1~0_25 0) (= |v_thr1Thread1of1ForFork1_#res.base_5| 0) (= |v_thr1Thread1of1ForFork1_#res.offset_5| 0)) InVars {} OutVars{thr1Thread1of1ForFork1_#res.base=|v_thr1Thread1of1ForFork1_#res.base_5|, thr1Thread1of1ForFork1_#res.offset=|v_thr1Thread1of1ForFork1_#res.offset_5|, ~b1~0=v_~b1~0_25} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#res.base, thr1Thread1of1ForFork1_#res.offset, ~b1~0][156], [154#true, 29#L847-1true, 157#true, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, thr2Thread1of1ForFork0InUse, 160#true, 135#true, 169#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,026 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,026 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,026 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,026 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,026 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L767-->thr1EXIT: Formula: (and (= |v_thr1Thread1of1ForFork1_#res.base_9| 0) (= v_~b1~0_30 0) (= |v_thr1Thread1of1ForFork1_#res.offset_9| 0)) InVars {} OutVars{thr1Thread1of1ForFork1_#res.base=|v_thr1Thread1of1ForFork1_#res.base_9|, thr1Thread1of1ForFork1_#res.offset=|v_thr1Thread1of1ForFork1_#res.offset_9|, ~b1~0=v_~b1~0_30} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#res.base, thr1Thread1of1ForFork1_#res.offset, ~b1~0][157], [154#true, 29#L847-1true, 157#true, 53#thr1EXITtrue, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, thr2Thread1of1ForFork0InUse, 160#true, 169#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,026 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([412] L767-->L770: Formula: (= v_~b1~0_6 0) InVars {} OutVars{~b1~0=v_~b1~0_6} AuxVars[] AssignedVars[~b1~0][158], [154#true, 29#L847-1true, 157#true, 149#true, 153#(= ~X~0 0), thr1Thread1of1ForFork1InUse, 119#true, thr2Thread1of1ForFork0InUse, 160#true, 128#true, 169#true, 168#(= ~x~0 1), 163#true, 178#(= thr2Thread1of1ForFork0_~b12~0 1)]) [2022-12-12 18:29:33,027 INFO L382 tUnfolder$Statistics]: this new event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,027 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-12 18:29:33,036 INFO L130 PetriNetUnfolder]: 1417/2567 cut-off events. [2022-12-12 18:29:33,037 INFO L131 PetriNetUnfolder]: For 18634/18803 co-relation queries the response was YES. [2022-12-12 18:29:33,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18584 conditions, 2567 events. 1417/2567 cut-off events. For 18634/18803 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14437 event pairs, 128 based on Foata normal form. 11/2008 useless extension candidates. Maximal degree in co-relation 18162. Up to 1929 conditions per place. [2022-12-12 18:29:33,043 INFO L137 encePairwiseOnDemand]: 91/99 looper letters, 0 selfloop transitions, 0 changer transitions 180/180 dead transitions. [2022-12-12 18:29:33,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 180 transitions, 3035 flow [2022-12-12 18:29:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:29:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:29:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 225 transitions. [2022-12-12 18:29:33,044 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2022-12-12 18:29:33,045 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2022-12-12 18:29:33,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 180 transitions, 3035 flow [2022-12-12 18:29:33,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 18:29:33,048 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 18:29:33,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 18:29:33,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 18:29:33,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-12 18:29:33,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-12 18:29:33,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-12 18:29:33,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-12 18:29:33,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-12 18:29:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 18:29:33,053 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-12-12 18:29:33,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 18:29:33,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 18:29:33,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 06:29:33 BasicIcfg [2022-12-12 18:29:33,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 18:29:33,062 INFO L158 Benchmark]: Toolchain (without parser) took 7576.39ms. Allocated memory was 175.1MB in the beginning and 899.7MB in the end (delta: 724.6MB). Free memory was 149.7MB in the beginning and 680.8MB in the end (delta: -531.1MB). Peak memory consumption was 194.5MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,063 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory was 151.1MB in the beginning and 151.0MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 18:29:33,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.46ms. Allocated memory is still 175.1MB. Free memory was 149.7MB in the beginning and 121.3MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.69ms. Allocated memory is still 175.1MB. Free memory was 121.3MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,063 INFO L158 Benchmark]: Boogie Preprocessor took 40.13ms. Allocated memory is still 175.1MB. Free memory was 119.3MB in the beginning and 117.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,063 INFO L158 Benchmark]: RCFGBuilder took 352.91ms. Allocated memory is still 175.1MB. Free memory was 117.7MB in the beginning and 102.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,065 INFO L158 Benchmark]: TraceAbstraction took 6678.31ms. Allocated memory was 175.1MB in the beginning and 899.7MB in the end (delta: 724.6MB). Free memory was 101.4MB in the beginning and 680.8MB in the end (delta: -579.3MB). Peak memory consumption was 146.2MB. Max. memory is 8.0GB. [2022-12-12 18:29:33,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory was 151.1MB in the beginning and 151.0MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 451.46ms. Allocated memory is still 175.1MB. Free memory was 149.7MB in the beginning and 121.3MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.69ms. Allocated memory is still 175.1MB. Free memory was 121.3MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.13ms. Allocated memory is still 175.1MB. Free memory was 119.3MB in the beginning and 117.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 352.91ms. Allocated memory is still 175.1MB. Free memory was 117.7MB in the beginning and 102.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6678.31ms. Allocated memory was 175.1MB in the beginning and 899.7MB in the end (delta: 724.6MB). Free memory was 101.4MB in the beginning and 680.8MB in the end (delta: -579.3MB). Peak memory consumption was 146.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 101 PlacesBefore, 86 PlacesAfterwards, 118 TransitionsBefore, 99 TransitionsAfterwards, 4988 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 31 ConcurrentYvCompositions, 7 ChoiceCompositions, 66 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5779, independent: 5574, independent conditional: 5574, independent unconditional: 0, dependent: 205, dependent conditional: 205, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5779, independent: 5574, independent conditional: 0, independent unconditional: 5574, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5779, independent: 5574, independent conditional: 0, independent unconditional: 5574, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5779, independent: 5574, independent conditional: 0, independent unconditional: 5574, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3129, independent: 3058, independent conditional: 0, independent unconditional: 3058, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3129, independent: 3035, independent conditional: 0, independent unconditional: 3035, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5779, independent: 2516, independent conditional: 0, independent unconditional: 2516, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 3129, unknown conditional: 0, unknown unconditional: 3129] , Statistics on independence cache: Total cache size (in pairs): 5056, Positive cache size: 4985, Positive conditional cache size: 0, Positive unconditional cache size: 4985, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: 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, 172 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1011 IncrementalHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 44 mSDtfsCounter, 1011 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2566occurred in iteration=7, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 6606 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-12-12 18:29:33,080 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...