/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 20:12:17,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 20:12:17,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 20:12:18,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 20:12:18,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 20:12:18,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 20:12:18,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 20:12:18,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 20:12:18,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 20:12:18,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 20:12:18,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 20:12:18,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 20:12:18,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 20:12:18,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 20:12:18,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 20:12:18,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 20:12:18,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 20:12:18,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 20:12:18,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 20:12:18,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 20:12:18,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 20:12:18,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 20:12:18,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 20:12:18,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 20:12:18,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 20:12:18,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 20:12:18,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 20:12:18,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 20:12:18,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 20:12:18,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 20:12:18,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 20:12:18,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 20:12:18,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 20:12:18,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 20:12:18,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 20:12:18,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 20:12:18,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 20:12:18,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 20:12:18,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 20:12:18,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 20:12:18,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 20:12:18,083 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-NoLbe.epf [2022-12-11 20:12:18,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 20:12:18,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 20:12:18,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 20:12:18,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 20:12:18,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 20:12:18,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 20:12:18,110 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 20:12:18,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 20:12:18,110 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 20:12:18,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 20:12:18,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 20:12:18,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 20:12:18,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 20:12:18,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 20:12:18,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 20:12:18,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 20:12:18,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 20:12:18,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 20:12:18,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 20:12:18,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 20:12:18,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 20:12:18,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 20:12:18,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 20:12:18,430 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 20:12:18,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-12-11 20:12:19,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 20:12:19,843 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 20:12:19,843 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-12-11 20:12:19,850 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae25f8c9/c1b359d754f940a3a793f5d3fe1d67e0/FLAG4922f898a [2022-12-11 20:12:19,861 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae25f8c9/c1b359d754f940a3a793f5d3fe1d67e0 [2022-12-11 20:12:19,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 20:12:19,863 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 20:12:19,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 20:12:19,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 20:12:19,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 20:12:19,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 08:12:19" (1/1) ... [2022-12-11 20:12:19,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cec95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:19, skipping insertion in model container [2022-12-11 20:12:19,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 08:12:19" (1/1) ... [2022-12-11 20:12:19,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 20:12:19,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 20:12:19,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:19,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:19,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3907,3920] [2022-12-11 20:12:20,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 20:12:20,038 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 20:12:20,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 20:12:20,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 20:12:20,068 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3907,3920] [2022-12-11 20:12:20,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 20:12:20,081 INFO L208 MainTranslator]: Completed translation [2022-12-11 20:12:20,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20 WrapperNode [2022-12-11 20:12:20,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 20:12:20,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 20:12:20,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 20:12:20,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 20:12:20,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,121 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-12-11 20:12:20,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 20:12:20,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 20:12:20,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 20:12:20,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 20:12:20,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 20:12:20,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 20:12:20,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 20:12:20,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 20:12:20,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (1/1) ... [2022-12-11 20:12:20,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 20:12:20,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 20:12:20,188 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) [2022-12-11 20:12:20,210 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 [2022-12-11 20:12:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 20:12:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 20:12:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 20:12:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 20:12:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 20:12:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 20:12:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 20:12:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-11 20:12:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-11 20:12:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 20:12:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 20:12:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 20:12:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 20:12:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 20:12:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 20:12:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 20:12:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 20:12:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 20:12:20,230 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 20:12:20,379 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 20:12:20,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 20:12:20,636 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 20:12:20,696 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 20:12:20,696 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 20:12:20,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 08:12:20 BoogieIcfgContainer [2022-12-11 20:12:20,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 20:12:20,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 20:12:20,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 20:12:20,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 20:12:20,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 08:12:19" (1/3) ... [2022-12-11 20:12:20,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbdc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 08:12:20, skipping insertion in model container [2022-12-11 20:12:20,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 08:12:20" (2/3) ... [2022-12-11 20:12:20,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbdc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 08:12:20, skipping insertion in model container [2022-12-11 20:12:20,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 08:12:20" (3/3) ... [2022-12-11 20:12:20,716 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-12-11 20:12:20,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 20:12:20,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 20:12:20,732 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 20:12:20,841 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-11 20:12:20,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 294 flow [2022-12-11 20:12:21,000 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-11 20:12:21,000 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-11 20:12:21,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 127 events. 2/127 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-11 20:12:21,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 131 transitions, 294 flow [2022-12-11 20:12:21,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 115 transitions, 254 flow [2022-12-11 20:12:21,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 20:12:21,021 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;@3832ce6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 20:12:21,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-11 20:12:21,070 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-12-11 20:12:21,070 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-11 20:12:21,071 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:21,072 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:21,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:21,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash -377885298, now seen corresponding path program 1 times [2022-12-11 20:12:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:21,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119608845] [2022-12-11 20:12:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:22,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119608845] [2022-12-11 20:12:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119608845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:22,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 20:12:22,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903475485] [2022-12-11 20:12:22,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:22,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 20:12:22,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:22,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 20:12:22,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 20:12:22,071 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 131 [2022-12-11 20:12:22,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:22,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:22,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 131 [2022-12-11 20:12:22,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:22,217 INFO L130 PetriNetUnfolder]: 51/313 cut-off events. [2022-12-11 20:12:22,217 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-12-11 20:12:22,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 313 events. 51/313 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1123 event pairs, 19 based on Foata normal form. 13/319 useless extension candidates. Maximal degree in co-relation 326. Up to 72 conditions per place. [2022-12-11 20:12:22,224 INFO L137 encePairwiseOnDemand]: 126/131 looper letters, 16 selfloop transitions, 2 changer transitions 2/117 dead transitions. [2022-12-11 20:12:22,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 117 transitions, 300 flow [2022-12-11 20:12:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 20:12:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 20:12:22,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2022-12-11 20:12:22,240 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9236641221374046 [2022-12-11 20:12:22,242 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 254 flow. Second operand 3 states and 363 transitions. [2022-12-11 20:12:22,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 117 transitions, 300 flow [2022-12-11 20:12:22,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 117 transitions, 280 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-11 20:12:22,251 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 238 flow [2022-12-11 20:12:22,253 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2022-12-11 20:12:22,257 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, -5 predicate places. [2022-12-11 20:12:22,257 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 238 flow [2022-12-11 20:12:22,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:22,257 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:22,258 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:22,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 20:12:22,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1280180884, now seen corresponding path program 2 times [2022-12-11 20:12:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:22,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656555781] [2022-12-11 20:12:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:22,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:25,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656555781] [2022-12-11 20:12:25,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656555781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:25,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:25,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:12:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59292736] [2022-12-11 20:12:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:25,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:12:25,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:12:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:12:25,238 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:12:25,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 238 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:25,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:25,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:12:25,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:28,732 INFO L130 PetriNetUnfolder]: 6521/12257 cut-off events. [2022-12-11 20:12:28,732 INFO L131 PetriNetUnfolder]: For 1216/1216 co-relation queries the response was YES. [2022-12-11 20:12:28,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22858 conditions, 12257 events. 6521/12257 cut-off events. For 1216/1216 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 99384 event pairs, 1415 based on Foata normal form. 1/12201 useless extension candidates. Maximal degree in co-relation 16829. Up to 2447 conditions per place. [2022-12-11 20:12:28,817 INFO L137 encePairwiseOnDemand]: 112/131 looper letters, 181 selfloop transitions, 18 changer transitions 13/275 dead transitions. [2022-12-11 20:12:28,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 275 transitions, 1039 flow [2022-12-11 20:12:28,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:12:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:12:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1461 transitions. [2022-12-11 20:12:28,822 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6970419847328244 [2022-12-11 20:12:28,823 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 238 flow. Second operand 16 states and 1461 transitions. [2022-12-11 20:12:28,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 275 transitions, 1039 flow [2022-12-11 20:12:28,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 275 transitions, 1035 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 20:12:28,835 INFO L231 Difference]: Finished difference. Result has 147 places, 126 transitions, 376 flow [2022-12-11 20:12:28,835 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=376, PETRI_PLACES=147, PETRI_TRANSITIONS=126} [2022-12-11 20:12:28,836 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 21 predicate places. [2022-12-11 20:12:28,836 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 126 transitions, 376 flow [2022-12-11 20:12:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:28,837 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:28,837 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:28,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 20:12:28,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash -12495166, now seen corresponding path program 3 times [2022-12-11 20:12:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:28,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482187156] [2022-12-11 20:12:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:28,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:29,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:29,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482187156] [2022-12-11 20:12:29,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482187156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:29,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:29,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 20:12:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638061370] [2022-12-11 20:12:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:29,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 20:12:29,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 20:12:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 20:12:29,114 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 131 [2022-12-11 20:12:29,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 126 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:29,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:29,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 131 [2022-12-11 20:12:29,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:29,302 INFO L130 PetriNetUnfolder]: 250/1229 cut-off events. [2022-12-11 20:12:29,302 INFO L131 PetriNetUnfolder]: For 341/357 co-relation queries the response was YES. [2022-12-11 20:12:29,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1229 events. 250/1229 cut-off events. For 341/357 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 9327 event pairs, 149 based on Foata normal form. 16/1179 useless extension candidates. Maximal degree in co-relation 2224. Up to 401 conditions per place. [2022-12-11 20:12:29,311 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 16 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2022-12-11 20:12:29,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 130 transitions, 424 flow [2022-12-11 20:12:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 20:12:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 20:12:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2022-12-11 20:12:29,312 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2022-12-11 20:12:29,312 INFO L175 Difference]: Start difference. First operand has 147 places, 126 transitions, 376 flow. Second operand 3 states and 361 transitions. [2022-12-11 20:12:29,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 130 transitions, 424 flow [2022-12-11 20:12:29,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 130 transitions, 416 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-11 20:12:29,321 INFO L231 Difference]: Finished difference. Result has 142 places, 126 transitions, 376 flow [2022-12-11 20:12:29,322 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=142, PETRI_TRANSITIONS=126} [2022-12-11 20:12:29,323 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 16 predicate places. [2022-12-11 20:12:29,323 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 126 transitions, 376 flow [2022-12-11 20:12:29,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:29,323 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:29,323 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:29,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 20:12:29,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:29,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1075993642, now seen corresponding path program 4 times [2022-12-11 20:12:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:29,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56917946] [2022-12-11 20:12:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:29,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56917946] [2022-12-11 20:12:29,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56917946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:29,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:29,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 20:12:29,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834180155] [2022-12-11 20:12:29,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:29,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 20:12:29,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 20:12:29,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 20:12:29,580 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 131 [2022-12-11 20:12:29,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 126 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:29,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:29,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 131 [2022-12-11 20:12:29,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:29,698 INFO L130 PetriNetUnfolder]: 207/997 cut-off events. [2022-12-11 20:12:29,699 INFO L131 PetriNetUnfolder]: For 285/309 co-relation queries the response was YES. [2022-12-11 20:12:29,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 997 events. 207/997 cut-off events. For 285/309 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6986 event pairs, 53 based on Foata normal form. 15/981 useless extension candidates. Maximal degree in co-relation 1691. Up to 346 conditions per place. [2022-12-11 20:12:29,706 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 17 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2022-12-11 20:12:29,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 130 transitions, 423 flow [2022-12-11 20:12:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 20:12:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 20:12:29,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2022-12-11 20:12:29,708 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9211195928753181 [2022-12-11 20:12:29,708 INFO L175 Difference]: Start difference. First operand has 142 places, 126 transitions, 376 flow. Second operand 3 states and 362 transitions. [2022-12-11 20:12:29,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 130 transitions, 423 flow [2022-12-11 20:12:29,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 130 transitions, 417 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-11 20:12:29,716 INFO L231 Difference]: Finished difference. Result has 143 places, 125 transitions, 372 flow [2022-12-11 20:12:29,716 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=143, PETRI_TRANSITIONS=125} [2022-12-11 20:12:29,717 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 17 predicate places. [2022-12-11 20:12:29,717 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 125 transitions, 372 flow [2022-12-11 20:12:29,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:29,718 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:29,718 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:29,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 20:12:29,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:29,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash 613964420, now seen corresponding path program 5 times [2022-12-11 20:12:29,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:29,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406121324] [2022-12-11 20:12:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:29,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:29,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406121324] [2022-12-11 20:12:29,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406121324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:29,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:29,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 20:12:29,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122344405] [2022-12-11 20:12:29,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:29,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 20:12:29,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:29,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 20:12:29,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 20:12:29,972 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 131 [2022-12-11 20:12:29,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 125 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:29,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:29,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 131 [2022-12-11 20:12:29,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:30,109 INFO L130 PetriNetUnfolder]: 233/1152 cut-off events. [2022-12-11 20:12:30,110 INFO L131 PetriNetUnfolder]: For 389/395 co-relation queries the response was YES. [2022-12-11 20:12:30,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1152 events. 233/1152 cut-off events. For 389/395 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8642 event pairs, 79 based on Foata normal form. 30/1121 useless extension candidates. Maximal degree in co-relation 1891. Up to 361 conditions per place. [2022-12-11 20:12:30,119 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 17 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2022-12-11 20:12:30,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 128 transitions, 417 flow [2022-12-11 20:12:30,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 20:12:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 20:12:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2022-12-11 20:12:30,120 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9211195928753181 [2022-12-11 20:12:30,120 INFO L175 Difference]: Start difference. First operand has 143 places, 125 transitions, 372 flow. Second operand 3 states and 362 transitions. [2022-12-11 20:12:30,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 128 transitions, 417 flow [2022-12-11 20:12:30,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 128 transitions, 405 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-11 20:12:30,126 INFO L231 Difference]: Finished difference. Result has 142 places, 123 transitions, 358 flow [2022-12-11 20:12:30,127 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=142, PETRI_TRANSITIONS=123} [2022-12-11 20:12:30,129 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 16 predicate places. [2022-12-11 20:12:30,129 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 123 transitions, 358 flow [2022-12-11 20:12:30,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-12-11 20:12:30,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:30,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:30,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 20:12:30,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1183163740, now seen corresponding path program 6 times [2022-12-11 20:12:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:30,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214829997] [2022-12-11 20:12:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:31,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214829997] [2022-12-11 20:12:31,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214829997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:31,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:31,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:12:31,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295725905] [2022-12-11 20:12:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:31,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:12:31,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:12:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:12:31,937 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:12:31,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 123 transitions, 358 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:31,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:31,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:12:31,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:34,955 INFO L130 PetriNetUnfolder]: 6602/14188 cut-off events. [2022-12-11 20:12:34,956 INFO L131 PetriNetUnfolder]: For 10519/10519 co-relation queries the response was YES. [2022-12-11 20:12:35,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34783 conditions, 14188 events. 6602/14188 cut-off events. For 10519/10519 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 130916 event pairs, 2144 based on Foata normal form. 1/14037 useless extension candidates. Maximal degree in co-relation 31905. Up to 2857 conditions per place. [2022-12-11 20:12:35,063 INFO L137 encePairwiseOnDemand]: 114/131 looper letters, 202 selfloop transitions, 26 changer transitions 13/304 dead transitions. [2022-12-11 20:12:35,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 304 transitions, 1516 flow [2022-12-11 20:12:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:12:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:12:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1456 transitions. [2022-12-11 20:12:35,067 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6946564885496184 [2022-12-11 20:12:35,067 INFO L175 Difference]: Start difference. First operand has 142 places, 123 transitions, 358 flow. Second operand 16 states and 1456 transitions. [2022-12-11 20:12:35,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 304 transitions, 1516 flow [2022-12-11 20:12:35,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 304 transitions, 1512 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 20:12:35,200 INFO L231 Difference]: Finished difference. Result has 169 places, 142 transitions, 602 flow [2022-12-11 20:12:35,201 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=602, PETRI_PLACES=169, PETRI_TRANSITIONS=142} [2022-12-11 20:12:35,204 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 43 predicate places. [2022-12-11 20:12:35,204 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 142 transitions, 602 flow [2022-12-11 20:12:35,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:35,205 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:35,205 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 20:12:35,205 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:35,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1384165444, now seen corresponding path program 7 times [2022-12-11 20:12:35,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:35,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826962909] [2022-12-11 20:12:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:37,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:37,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826962909] [2022-12-11 20:12:37,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826962909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:37,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:37,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:12:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484253084] [2022-12-11 20:12:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:37,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:12:37,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:37,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:12:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:12:37,037 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:12:37,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 142 transitions, 602 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:37,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:37,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:12:37,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:41,408 INFO L130 PetriNetUnfolder]: 8885/20656 cut-off events. [2022-12-11 20:12:41,409 INFO L131 PetriNetUnfolder]: For 40213/40213 co-relation queries the response was YES. [2022-12-11 20:12:41,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60678 conditions, 20656 events. 8885/20656 cut-off events. For 40213/40213 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 218469 event pairs, 2868 based on Foata normal form. 1/20286 useless extension candidates. Maximal degree in co-relation 60342. Up to 4510 conditions per place. [2022-12-11 20:12:41,602 INFO L137 encePairwiseOnDemand]: 113/131 looper letters, 244 selfloop transitions, 39 changer transitions 8/354 dead transitions. [2022-12-11 20:12:41,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 354 transitions, 2329 flow [2022-12-11 20:12:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:12:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:12:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1470 transitions. [2022-12-11 20:12:41,607 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7013358778625954 [2022-12-11 20:12:41,607 INFO L175 Difference]: Start difference. First operand has 169 places, 142 transitions, 602 flow. Second operand 16 states and 1470 transitions. [2022-12-11 20:12:41,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 354 transitions, 2329 flow [2022-12-11 20:12:42,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 354 transitions, 2219 flow, removed 52 selfloop flow, removed 5 redundant places. [2022-12-11 20:12:42,150 INFO L231 Difference]: Finished difference. Result has 189 places, 169 transitions, 995 flow [2022-12-11 20:12:42,150 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=995, PETRI_PLACES=189, PETRI_TRANSITIONS=169} [2022-12-11 20:12:42,151 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 63 predicate places. [2022-12-11 20:12:42,151 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 169 transitions, 995 flow [2022-12-11 20:12:42,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:42,152 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:42,152 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:42,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 20:12:42,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:42,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash -103563268, now seen corresponding path program 8 times [2022-12-11 20:12:42,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:42,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293350530] [2022-12-11 20:12:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:43,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:43,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293350530] [2022-12-11 20:12:43,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293350530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:43,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:43,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:12:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082398958] [2022-12-11 20:12:43,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:43,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:12:43,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:43,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:12:43,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:12:43,824 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:12:43,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 169 transitions, 995 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:43,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:43,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:12:43,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:12:50,110 INFO L130 PetriNetUnfolder]: 14350/36348 cut-off events. [2022-12-11 20:12:50,111 INFO L131 PetriNetUnfolder]: For 116439/116439 co-relation queries the response was YES. [2022-12-11 20:12:50,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118836 conditions, 36348 events. 14350/36348 cut-off events. For 116439/116439 co-relation queries the response was YES. Maximal size of possible extension queue 2529. Compared 444185 event pairs, 5011 based on Foata normal form. 1/35764 useless extension candidates. Maximal degree in co-relation 117865. Up to 8465 conditions per place. [2022-12-11 20:12:50,522 INFO L137 encePairwiseOnDemand]: 113/131 looper letters, 341 selfloop transitions, 63 changer transitions 11/478 dead transitions. [2022-12-11 20:12:50,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 478 transitions, 4387 flow [2022-12-11 20:12:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:12:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:12:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1463 transitions. [2022-12-11 20:12:50,532 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6979961832061069 [2022-12-11 20:12:50,532 INFO L175 Difference]: Start difference. First operand has 189 places, 169 transitions, 995 flow. Second operand 16 states and 1463 transitions. [2022-12-11 20:12:50,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 478 transitions, 4387 flow [2022-12-11 20:12:52,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 478 transitions, 4298 flow, removed 42 selfloop flow, removed 4 redundant places. [2022-12-11 20:12:52,080 INFO L231 Difference]: Finished difference. Result has 211 places, 215 transitions, 1811 flow [2022-12-11 20:12:52,080 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1811, PETRI_PLACES=211, PETRI_TRANSITIONS=215} [2022-12-11 20:12:52,082 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 85 predicate places. [2022-12-11 20:12:52,082 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 215 transitions, 1811 flow [2022-12-11 20:12:52,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:52,083 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:12:52,083 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:12:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 20:12:52,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:12:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:12:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash 348269050, now seen corresponding path program 9 times [2022-12-11 20:12:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:12:52,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368872145] [2022-12-11 20:12:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:12:52,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:12:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:12:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:12:53,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:12:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368872145] [2022-12-11 20:12:53,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368872145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:12:53,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:12:53,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:12:53,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389263743] [2022-12-11 20:12:53,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:12:53,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:12:53,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:12:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:12:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:12:53,675 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:12:53,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 215 transitions, 1811 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:12:53,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:12:53,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:12:53,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:13:00,913 INFO L130 PetriNetUnfolder]: 14880/39159 cut-off events. [2022-12-11 20:13:00,913 INFO L131 PetriNetUnfolder]: For 190893/190893 co-relation queries the response was YES. [2022-12-11 20:13:01,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141084 conditions, 39159 events. 14880/39159 cut-off events. For 190893/190893 co-relation queries the response was YES. Maximal size of possible extension queue 2717. Compared 495209 event pairs, 5634 based on Foata normal form. 1/38307 useless extension candidates. Maximal degree in co-relation 139947. Up to 10777 conditions per place. [2022-12-11 20:13:01,436 INFO L137 encePairwiseOnDemand]: 113/131 looper letters, 337 selfloop transitions, 46 changer transitions 13/459 dead transitions. [2022-12-11 20:13:01,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 459 transitions, 4639 flow [2022-12-11 20:13:01,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:13:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:13:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1468 transitions. [2022-12-11 20:13:01,441 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.700381679389313 [2022-12-11 20:13:01,441 INFO L175 Difference]: Start difference. First operand has 211 places, 215 transitions, 1811 flow. Second operand 16 states and 1468 transitions. [2022-12-11 20:13:01,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 459 transitions, 4639 flow [2022-12-11 20:13:03,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 459 transitions, 4454 flow, removed 90 selfloop flow, removed 5 redundant places. [2022-12-11 20:13:03,902 INFO L231 Difference]: Finished difference. Result has 229 places, 238 transitions, 2258 flow [2022-12-11 20:13:03,902 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1776, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2258, PETRI_PLACES=229, PETRI_TRANSITIONS=238} [2022-12-11 20:13:03,903 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 103 predicate places. [2022-12-11 20:13:03,903 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 238 transitions, 2258 flow [2022-12-11 20:13:03,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:03,904 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:13:03,904 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:13:03,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 20:13:03,904 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:13:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:13:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1735211680, now seen corresponding path program 10 times [2022-12-11 20:13:03,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:13:03,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951032195] [2022-12-11 20:13:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:13:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:13:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:13:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:13:05,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:13:05,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951032195] [2022-12-11 20:13:05,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951032195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:13:05,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:13:05,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:13:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858858667] [2022-12-11 20:13:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:13:05,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:13:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:13:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:13:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:13:05,476 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:13:05,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 238 transitions, 2258 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:05,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:13:05,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:13:05,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:13:15,151 INFO L130 PetriNetUnfolder]: 17042/51340 cut-off events. [2022-12-11 20:13:15,152 INFO L131 PetriNetUnfolder]: For 295488/295488 co-relation queries the response was YES. [2022-12-11 20:13:15,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187267 conditions, 51340 events. 17042/51340 cut-off events. For 295488/295488 co-relation queries the response was YES. Maximal size of possible extension queue 3746. Compared 722209 event pairs, 6453 based on Foata normal form. 1/50751 useless extension candidates. Maximal degree in co-relation 184917. Up to 9206 conditions per place. [2022-12-11 20:13:15,948 INFO L137 encePairwiseOnDemand]: 114/131 looper letters, 475 selfloop transitions, 103 changer transitions 9/650 dead transitions. [2022-12-11 20:13:15,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 650 transitions, 8243 flow [2022-12-11 20:13:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:13:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:13:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1458 transitions. [2022-12-11 20:13:15,956 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6956106870229007 [2022-12-11 20:13:15,956 INFO L175 Difference]: Start difference. First operand has 229 places, 238 transitions, 2258 flow. Second operand 16 states and 1458 transitions. [2022-12-11 20:13:15,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 650 transitions, 8243 flow [2022-12-11 20:13:19,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 650 transitions, 7861 flow, removed 153 selfloop flow, removed 6 redundant places. [2022-12-11 20:13:19,028 INFO L231 Difference]: Finished difference. Result has 247 places, 309 transitions, 3598 flow [2022-12-11 20:13:19,028 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=2127, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3598, PETRI_PLACES=247, PETRI_TRANSITIONS=309} [2022-12-11 20:13:19,029 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 121 predicate places. [2022-12-11 20:13:19,029 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 309 transitions, 3598 flow [2022-12-11 20:13:19,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:19,030 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:13:19,030 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:13:19,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 20:13:19,030 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:13:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:13:19,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1431061470, now seen corresponding path program 11 times [2022-12-11 20:13:19,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:13:19,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595873763] [2022-12-11 20:13:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:13:19,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:13:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:13:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:13:20,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:13:20,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595873763] [2022-12-11 20:13:20,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595873763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:13:20,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:13:20,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:13:20,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068584280] [2022-12-11 20:13:20,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:13:20,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:13:20,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:13:20,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:13:20,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:13:20,579 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:13:20,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 309 transitions, 3598 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:20,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:13:20,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:13:20,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 20:13:34,650 INFO L130 PetriNetUnfolder]: 22133/72218 cut-off events. [2022-12-11 20:13:34,650 INFO L131 PetriNetUnfolder]: For 514948/514948 co-relation queries the response was YES. [2022-12-11 20:13:35,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276248 conditions, 72218 events. 22133/72218 cut-off events. For 514948/514948 co-relation queries the response was YES. Maximal size of possible extension queue 5487. Compared 1107007 event pairs, 7263 based on Foata normal form. 1/70914 useless extension candidates. Maximal degree in co-relation 272539. Up to 12979 conditions per place. [2022-12-11 20:13:35,850 INFO L137 encePairwiseOnDemand]: 113/131 looper letters, 561 selfloop transitions, 100 changer transitions 9/733 dead transitions. [2022-12-11 20:13:35,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 733 transitions, 10159 flow [2022-12-11 20:13:35,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 20:13:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 20:13:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1475 transitions. [2022-12-11 20:13:35,854 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7037213740458015 [2022-12-11 20:13:35,854 INFO L175 Difference]: Start difference. First operand has 247 places, 309 transitions, 3598 flow. Second operand 16 states and 1475 transitions. [2022-12-11 20:13:35,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 733 transitions, 10159 flow [2022-12-11 20:13:41,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 733 transitions, 9947 flow, removed 93 selfloop flow, removed 5 redundant places. [2022-12-11 20:13:41,322 INFO L231 Difference]: Finished difference. Result has 266 places, 370 transitions, 4949 flow [2022-12-11 20:13:41,323 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=3533, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4949, PETRI_PLACES=266, PETRI_TRANSITIONS=370} [2022-12-11 20:13:41,323 INFO L295 CegarLoopForPetriNet]: 126 programPoint places, 140 predicate places. [2022-12-11 20:13:41,323 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 370 transitions, 4949 flow [2022-12-11 20:13:41,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:41,324 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 20:13:41,324 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 20:13:41,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 20:13:41,324 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 20:13:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 20:13:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -843946084, now seen corresponding path program 12 times [2022-12-11 20:13:41,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 20:13:41,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119380568] [2022-12-11 20:13:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 20:13:41,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 20:13:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 20:13:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 20:13:42,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 20:13:42,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119380568] [2022-12-11 20:13:42,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119380568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 20:13:42,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 20:13:42,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 20:13:42,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527606781] [2022-12-11 20:13:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 20:13:42,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 20:13:42,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 20:13:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 20:13:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-11 20:13:42,723 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2022-12-11 20:13:42,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 370 transitions, 4949 flow. Second operand has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 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) [2022-12-11 20:13:42,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 20:13:42,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2022-12-11 20:13:42,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand