/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/pthread-wmm/safe035_power.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:09:41,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:09:41,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:09:41,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:09:41,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:09:41,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:09:41,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:09:41,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:09:41,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:09:41,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:09:41,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:09:41,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:09:41,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:09:41,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:09:41,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:09:41,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:09:41,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:09:41,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:09:41,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:09:41,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:09:41,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:09:41,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:09:41,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:09:41,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:09:41,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:09:41,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:09:41,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:09:41,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:09:41,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:09:41,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:09:41,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:09:41,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:09:41,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:09:41,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:09:41,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:09:41,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:09:41,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:09:41,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:09:41,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:09:41,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:09:41,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:09:41,078 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 19:09:41,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:09:41,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:09:41,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:09:41,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:09:41,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:09:41,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:09:41,102 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:09:41,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:09:41,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:09:41,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:09:41,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:09:41,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:09:41,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:09:41,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:09:41,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:09:41,106 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:09:41,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:09:41,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:09:41,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:09:41,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:09:41,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:09:41,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:09:41,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:09:41,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:09:41,387 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:09:41,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i [2022-12-11 19:09:42,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:09:42,824 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:09:42,824 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i [2022-12-11 19:09:42,837 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bcddf0a7/41afc4a002f94f9f9d74958906333fa8/FLAG9a4842a63 [2022-12-11 19:09:42,851 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bcddf0a7/41afc4a002f94f9f9d74958906333fa8 [2022-12-11 19:09:42,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:09:42,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:09:42,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:09:42,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:09:42,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:09:42,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:09:42" (1/1) ... [2022-12-11 19:09:42,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132b29de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:42, skipping insertion in model container [2022-12-11 19:09:42,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:09:42" (1/1) ... [2022-12-11 19:09:42,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:09:42,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:09:43,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2022-12-11 19:09:43,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:09:43,262 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:09:43,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2022-12-11 19:09:43,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:09:43,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:09:43,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:09:43,373 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:09:43,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43 WrapperNode [2022-12-11 19:09:43,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:09:43,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:09:43,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:09:43,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:09:43,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,448 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2022-12-11 19:09:43,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:09:43,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:09:43,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:09:43,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:09:43,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:09:43,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:09:43,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:09:43,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:09:43,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (1/1) ... [2022-12-11 19:09:43,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:09:43,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:09:43,519 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 19:09:43,547 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 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:09:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 19:09:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 19:09:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 19:09:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 19:09:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 19:09:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 19:09:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:09:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:09:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:09:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:09:43,573 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 19:09:43,677 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:09:43,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:09:44,033 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:09:44,159 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:09:44,160 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:09:44,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:09:44 BoogieIcfgContainer [2022-12-11 19:09:44,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:09:44,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:09:44,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:09:44,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:09:44,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:09:42" (1/3) ... [2022-12-11 19:09:44,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4932b6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:09:44, skipping insertion in model container [2022-12-11 19:09:44,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:09:43" (2/3) ... [2022-12-11 19:09:44,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4932b6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:09:44, skipping insertion in model container [2022-12-11 19:09:44,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:09:44" (3/3) ... [2022-12-11 19:09:44,169 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2022-12-11 19:09:44,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:09:44,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 19:09:44,183 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:09:44,253 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:09:44,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 112 transitions, 239 flow [2022-12-11 19:09:44,334 INFO L130 PetriNetUnfolder]: 2/109 cut-off events. [2022-12-11 19:09:44,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:09:44,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-12-11 19:09:44,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 112 transitions, 239 flow [2022-12-11 19:09:44,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 109 transitions, 227 flow [2022-12-11 19:09:44,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:09:44,361 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;@33bb7123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:09:44,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-11 19:09:44,387 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-12-11 19:09:44,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:09:44,387 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:44,388 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] [2022-12-11 19:09:44,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1561924544, now seen corresponding path program 1 times [2022-12-11 19:09:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:44,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473334825] [2022-12-11 19:09:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:44,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:44,950 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 19:09:44,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:44,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473334825] [2022-12-11 19:09:44,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473334825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:44,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:44,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 19:09:44,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575630590] [2022-12-11 19:09:44,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:44,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 19:09:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:44,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 19:09:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 19:09:44,975 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 112 [2022-12-11 19:09:44,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 109 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 19:09:44,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:44,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 112 [2022-12-11 19:09:44,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:45,398 INFO L130 PetriNetUnfolder]: 359/1639 cut-off events. [2022-12-11 19:09:45,398 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-11 19:09:45,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 1639 events. 359/1639 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 14074 event pairs, 131 based on Foata normal form. 100/1642 useless extension candidates. Maximal degree in co-relation 2181. Up to 445 conditions per place. [2022-12-11 19:09:45,418 INFO L137 encePairwiseOnDemand]: 107/112 looper letters, 20 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-12-11 19:09:45,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 277 flow [2022-12-11 19:09:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 19:09:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 19:09:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2022-12-11 19:09:45,433 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9107142857142857 [2022-12-11 19:09:45,434 INFO L175 Difference]: Start difference. First operand has 117 places, 109 transitions, 227 flow. Second operand 3 states and 306 transitions. [2022-12-11 19:09:45,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 277 flow [2022-12-11 19:09:45,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 274 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:09:45,441 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 220 flow [2022-12-11 19:09:45,442 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-12-11 19:09:45,447 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, -3 predicate places. [2022-12-11 19:09:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 220 flow [2022-12-11 19:09:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 19:09:45,447 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:45,447 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] [2022-12-11 19:09:45,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:09:45,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1391053068, now seen corresponding path program 1 times [2022-12-11 19:09:45,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:45,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086690788] [2022-12-11 19:09:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:45,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:45,854 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 19:09:45,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:45,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086690788] [2022-12-11 19:09:45,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086690788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:45,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:45,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558636180] [2022-12-11 19:09:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:45,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:45,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:45,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:45,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:45,859 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 112 [2022-12-11 19:09:45,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 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 19:09:45,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:45,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 112 [2022-12-11 19:09:45,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:46,368 INFO L130 PetriNetUnfolder]: 1143/2664 cut-off events. [2022-12-11 19:09:46,369 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-12-11 19:09:46,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 2664 events. 1143/2664 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 20085 event pairs, 206 based on Foata normal form. 0/2603 useless extension candidates. Maximal degree in co-relation 4458. Up to 561 conditions per place. [2022-12-11 19:09:46,379 INFO L137 encePairwiseOnDemand]: 106/112 looper letters, 24 selfloop transitions, 2 changer transitions 61/162 dead transitions. [2022-12-11 19:09:46,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 162 transitions, 496 flow [2022-12-11 19:09:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 19:09:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 19:09:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 863 transitions. [2022-12-11 19:09:46,382 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8561507936507936 [2022-12-11 19:09:46,382 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 220 flow. Second operand 9 states and 863 transitions. [2022-12-11 19:09:46,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 162 transitions, 496 flow [2022-12-11 19:09:46,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 162 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:09:46,386 INFO L231 Difference]: Finished difference. Result has 127 places, 95 transitions, 216 flow [2022-12-11 19:09:46,387 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=216, PETRI_PLACES=127, PETRI_TRANSITIONS=95} [2022-12-11 19:09:46,387 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 10 predicate places. [2022-12-11 19:09:46,387 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 95 transitions, 216 flow [2022-12-11 19:09:46,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 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 19:09:46,388 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:46,388 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] [2022-12-11 19:09:46,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:09:46,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash 664355351, now seen corresponding path program 1 times [2022-12-11 19:09:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:46,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429225295] [2022-12-11 19:09:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:46,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:47,672 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 19:09:47,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:47,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429225295] [2022-12-11 19:09:47,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429225295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:47,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:47,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:09:47,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904063672] [2022-12-11 19:09:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:47,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:09:47,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:09:47,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:09:47,676 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-11 19:09:47,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 95 transitions, 216 flow. Second operand has 14 states, 14 states have (on average 79.57142857142857) internal successors, (1114), 14 states have internal predecessors, (1114), 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 19:09:47,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:47,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-11 19:09:47,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:48,324 INFO L130 PetriNetUnfolder]: 943/1791 cut-off events. [2022-12-11 19:09:48,324 INFO L131 PetriNetUnfolder]: For 262/262 co-relation queries the response was YES. [2022-12-11 19:09:48,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3745 conditions, 1791 events. 943/1791 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10441 event pairs, 462 based on Foata normal form. 32/1742 useless extension candidates. Maximal degree in co-relation 3680. Up to 984 conditions per place. [2022-12-11 19:09:48,333 INFO L137 encePairwiseOnDemand]: 95/112 looper letters, 37 selfloop transitions, 20 changer transitions 25/148 dead transitions. [2022-12-11 19:09:48,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 148 transitions, 505 flow [2022-12-11 19:09:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:09:48,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:09:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1097 transitions. [2022-12-11 19:09:48,336 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7534340659340659 [2022-12-11 19:09:48,336 INFO L175 Difference]: Start difference. First operand has 127 places, 95 transitions, 216 flow. Second operand 13 states and 1097 transitions. [2022-12-11 19:09:48,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 148 transitions, 505 flow [2022-12-11 19:09:48,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 148 transitions, 479 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-12-11 19:09:48,362 INFO L231 Difference]: Finished difference. Result has 122 places, 110 transitions, 328 flow [2022-12-11 19:09:48,362 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=328, PETRI_PLACES=122, PETRI_TRANSITIONS=110} [2022-12-11 19:09:48,363 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 5 predicate places. [2022-12-11 19:09:48,363 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 110 transitions, 328 flow [2022-12-11 19:09:48,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 79.57142857142857) internal successors, (1114), 14 states have internal predecessors, (1114), 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 19:09:48,364 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:48,364 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] [2022-12-11 19:09:48,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:09:48,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:48,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:48,365 INFO L85 PathProgramCache]: Analyzing trace with hash -667717711, now seen corresponding path program 2 times [2022-12-11 19:09:48,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:48,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676173808] [2022-12-11 19:09:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:49,025 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 19:09:49,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:49,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676173808] [2022-12-11 19:09:49,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676173808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:49,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:49,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:09:49,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540427934] [2022-12-11 19:09:49,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:49,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:09:49,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:49,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:09:49,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:09:49,032 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 112 [2022-12-11 19:09:49,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 110 transitions, 328 flow. Second operand has 9 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 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 19:09:49,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:49,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 112 [2022-12-11 19:09:49,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:49,645 INFO L130 PetriNetUnfolder]: 1236/2465 cut-off events. [2022-12-11 19:09:49,645 INFO L131 PetriNetUnfolder]: For 1575/3472 co-relation queries the response was YES. [2022-12-11 19:09:49,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6373 conditions, 2465 events. 1236/2465 cut-off events. For 1575/3472 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 16137 event pairs, 275 based on Foata normal form. 48/2434 useless extension candidates. Maximal degree in co-relation 6306. Up to 1157 conditions per place. [2022-12-11 19:09:49,658 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 41 selfloop transitions, 22 changer transitions 50/182 dead transitions. [2022-12-11 19:09:49,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 182 transitions, 861 flow [2022-12-11 19:09:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:09:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:09:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 985 transitions. [2022-12-11 19:09:49,661 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.799512987012987 [2022-12-11 19:09:49,661 INFO L175 Difference]: Start difference. First operand has 122 places, 110 transitions, 328 flow. Second operand 11 states and 985 transitions. [2022-12-11 19:09:49,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 182 transitions, 861 flow [2022-12-11 19:09:49,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 182 transitions, 839 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-12-11 19:09:49,667 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 497 flow [2022-12-11 19:09:49,667 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=497, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-12-11 19:09:49,668 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 13 predicate places. [2022-12-11 19:09:49,668 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 497 flow [2022-12-11 19:09:49,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 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 19:09:49,668 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:49,669 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] [2022-12-11 19:09:49,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:09:49,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:49,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:49,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1190135234, now seen corresponding path program 1 times [2022-12-11 19:09:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:49,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022856125] [2022-12-11 19:09:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:49,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:50,741 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 19:09:50,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:50,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022856125] [2022-12-11 19:09:50,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022856125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:50,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:50,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:09:50,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628288751] [2022-12-11 19:09:50,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:50,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:09:50,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:50,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:09:50,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:09:50,744 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 112 [2022-12-11 19:09:50,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 497 flow. Second operand has 11 states, 11 states have (on average 81.9090909090909) internal successors, (901), 11 states have internal predecessors, (901), 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 19:09:50,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:50,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 112 [2022-12-11 19:09:50,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:51,424 INFO L130 PetriNetUnfolder]: 1055/2205 cut-off events. [2022-12-11 19:09:51,425 INFO L131 PetriNetUnfolder]: For 4201/6122 co-relation queries the response was YES. [2022-12-11 19:09:51,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7869 conditions, 2205 events. 1055/2205 cut-off events. For 4201/6122 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14801 event pairs, 117 based on Foata normal form. 33/2157 useless extension candidates. Maximal degree in co-relation 7798. Up to 1030 conditions per place. [2022-12-11 19:09:51,441 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 47 selfloop transitions, 30 changer transitions 44/189 dead transitions. [2022-12-11 19:09:51,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 189 transitions, 1160 flow [2022-12-11 19:09:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:09:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:09:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1056 transitions. [2022-12-11 19:09:51,446 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2022-12-11 19:09:51,446 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 497 flow. Second operand 12 states and 1056 transitions. [2022-12-11 19:09:51,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 189 transitions, 1160 flow [2022-12-11 19:09:51,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 189 transitions, 1145 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-12-11 19:09:51,454 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 674 flow [2022-12-11 19:09:51,454 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=674, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2022-12-11 19:09:51,456 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 21 predicate places. [2022-12-11 19:09:51,456 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 674 flow [2022-12-11 19:09:51,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 81.9090909090909) internal successors, (901), 11 states have internal predecessors, (901), 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 19:09:51,456 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:51,457 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] [2022-12-11 19:09:51,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:09:51,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash -414205326, now seen corresponding path program 1 times [2022-12-11 19:09:51,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:51,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483333811] [2022-12-11 19:09:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:51,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:51,660 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 19:09:51,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:51,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483333811] [2022-12-11 19:09:51,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483333811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:51,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:51,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:09:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882284921] [2022-12-11 19:09:51,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:51,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:09:51,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:51,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:09:51,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:09:51,662 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 112 [2022-12-11 19:09:51,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 674 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 19:09:51,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:51,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 112 [2022-12-11 19:09:51,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:53,202 INFO L130 PetriNetUnfolder]: 5305/9362 cut-off events. [2022-12-11 19:09:53,203 INFO L131 PetriNetUnfolder]: For 40573/40588 co-relation queries the response was YES. [2022-12-11 19:09:53,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35526 conditions, 9362 events. 5305/9362 cut-off events. For 40573/40588 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 70367 event pairs, 290 based on Foata normal form. 15/9222 useless extension candidates. Maximal degree in co-relation 35455. Up to 2429 conditions per place. [2022-12-11 19:09:53,270 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 134 selfloop transitions, 7 changer transitions 172/391 dead transitions. [2022-12-11 19:09:53,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 391 transitions, 3590 flow [2022-12-11 19:09:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:09:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:09:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 952 transitions. [2022-12-11 19:09:53,273 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.85 [2022-12-11 19:09:53,273 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 674 flow. Second operand 10 states and 952 transitions. [2022-12-11 19:09:53,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 391 transitions, 3590 flow [2022-12-11 19:09:53,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 391 transitions, 3344 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-12-11 19:09:53,302 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 688 flow [2022-12-11 19:09:53,303 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=688, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2022-12-11 19:09:53,305 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 23 predicate places. [2022-12-11 19:09:53,305 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 688 flow [2022-12-11 19:09:53,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 19:09:53,306 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:53,306 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] [2022-12-11 19:09:53,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:09:53,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2145487823, now seen corresponding path program 1 times [2022-12-11 19:09:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:53,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522776288] [2022-12-11 19:09:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:53,674 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 19:09:53,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:53,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522776288] [2022-12-11 19:09:53,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522776288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:53,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:53,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:09:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445892391] [2022-12-11 19:09:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:53,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:09:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:09:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:09:53,679 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 112 [2022-12-11 19:09:53,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 688 flow. Second operand has 9 states, 9 states have (on average 85.11111111111111) internal successors, (766), 9 states have internal predecessors, (766), 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 19:09:53,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:53,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 112 [2022-12-11 19:09:53,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:54,714 INFO L130 PetriNetUnfolder]: 1660/4527 cut-off events. [2022-12-11 19:09:54,714 INFO L131 PetriNetUnfolder]: For 17937/18501 co-relation queries the response was YES. [2022-12-11 19:09:54,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18141 conditions, 4527 events. 1660/4527 cut-off events. For 17937/18501 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 43491 event pairs, 448 based on Foata normal form. 48/4299 useless extension candidates. Maximal degree in co-relation 18064. Up to 1005 conditions per place. [2022-12-11 19:09:54,762 INFO L137 encePairwiseOnDemand]: 96/112 looper letters, 83 selfloop transitions, 28 changer transitions 46/232 dead transitions. [2022-12-11 19:09:54,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 232 transitions, 1912 flow [2022-12-11 19:09:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:09:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:09:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1187 transitions. [2022-12-11 19:09:54,765 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8152472527472527 [2022-12-11 19:09:54,765 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 688 flow. Second operand 13 states and 1187 transitions. [2022-12-11 19:09:54,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 232 transitions, 1912 flow [2022-12-11 19:09:54,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 232 transitions, 1903 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-11 19:09:54,792 INFO L231 Difference]: Finished difference. Result has 155 places, 154 transitions, 1028 flow [2022-12-11 19:09:54,792 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1028, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2022-12-11 19:09:54,792 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 38 predicate places. [2022-12-11 19:09:54,793 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 1028 flow [2022-12-11 19:09:54,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.11111111111111) internal successors, (766), 9 states have internal predecessors, (766), 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 19:09:54,794 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:54,794 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] [2022-12-11 19:09:54,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:09:54,794 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:54,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:54,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1277438289, now seen corresponding path program 2 times [2022-12-11 19:09:54,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:54,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464223659] [2022-12-11 19:09:54,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:54,952 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 19:09:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:54,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464223659] [2022-12-11 19:09:54,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464223659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:54,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:54,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:09:54,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800927284] [2022-12-11 19:09:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:54,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:09:54,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:09:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:09:54,954 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 112 [2022-12-11 19:09:54,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 1028 flow. Second operand has 7 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 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 19:09:54,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:54,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 112 [2022-12-11 19:09:54,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:56,113 INFO L130 PetriNetUnfolder]: 3082/6413 cut-off events. [2022-12-11 19:09:56,113 INFO L131 PetriNetUnfolder]: For 56356/56542 co-relation queries the response was YES. [2022-12-11 19:09:56,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31310 conditions, 6413 events. 3082/6413 cut-off events. For 56356/56542 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 53605 event pairs, 318 based on Foata normal form. 345/6740 useless extension candidates. Maximal degree in co-relation 31227. Up to 1495 conditions per place. [2022-12-11 19:09:56,157 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 153 selfloop transitions, 18 changer transitions 116/366 dead transitions. [2022-12-11 19:09:56,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 366 transitions, 3939 flow [2022-12-11 19:09:56,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:09:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:09:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1049 transitions. [2022-12-11 19:09:56,159 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.851461038961039 [2022-12-11 19:09:56,160 INFO L175 Difference]: Start difference. First operand has 155 places, 154 transitions, 1028 flow. Second operand 11 states and 1049 transitions. [2022-12-11 19:09:56,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 366 transitions, 3939 flow [2022-12-11 19:09:56,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 366 transitions, 3838 flow, removed 38 selfloop flow, removed 5 redundant places. [2022-12-11 19:09:56,202 INFO L231 Difference]: Finished difference. Result has 158 places, 158 transitions, 1068 flow [2022-12-11 19:09:56,202 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1068, PETRI_PLACES=158, PETRI_TRANSITIONS=158} [2022-12-11 19:09:56,203 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 41 predicate places. [2022-12-11 19:09:56,203 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 158 transitions, 1068 flow [2022-12-11 19:09:56,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 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 19:09:56,203 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:56,204 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] [2022-12-11 19:09:56,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:09:56,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:56,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1074328015, now seen corresponding path program 1 times [2022-12-11 19:09:56,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:56,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72127743] [2022-12-11 19:09:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:57,597 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 19:09:57,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:57,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72127743] [2022-12-11 19:09:57,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72127743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:57,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:57,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:09:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687442637] [2022-12-11 19:09:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:57,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:09:57,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:09:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:09:57,600 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 112 [2022-12-11 19:09:57,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 1068 flow. Second operand has 11 states, 11 states have (on average 82.18181818181819) internal successors, (904), 11 states have internal predecessors, (904), 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 19:09:57,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:57,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 112 [2022-12-11 19:09:57,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:09:58,381 INFO L130 PetriNetUnfolder]: 748/3068 cut-off events. [2022-12-11 19:09:58,382 INFO L131 PetriNetUnfolder]: For 15993/16747 co-relation queries the response was YES. [2022-12-11 19:09:58,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13170 conditions, 3068 events. 748/3068 cut-off events. For 15993/16747 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 32052 event pairs, 126 based on Foata normal form. 20/2931 useless extension candidates. Maximal degree in co-relation 13077. Up to 752 conditions per place. [2022-12-11 19:09:58,414 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 60 selfloop transitions, 20 changer transitions 45/212 dead transitions. [2022-12-11 19:09:58,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 212 transitions, 2070 flow [2022-12-11 19:09:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:09:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:09:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1053 transitions. [2022-12-11 19:09:58,416 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7834821428571429 [2022-12-11 19:09:58,416 INFO L175 Difference]: Start difference. First operand has 158 places, 158 transitions, 1068 flow. Second operand 12 states and 1053 transitions. [2022-12-11 19:09:58,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 212 transitions, 2070 flow [2022-12-11 19:09:58,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 2003 flow, removed 24 selfloop flow, removed 3 redundant places. [2022-12-11 19:09:58,492 INFO L231 Difference]: Finished difference. Result has 173 places, 150 transitions, 982 flow [2022-12-11 19:09:58,492 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=982, PETRI_PLACES=173, PETRI_TRANSITIONS=150} [2022-12-11 19:09:58,493 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 56 predicate places. [2022-12-11 19:09:58,493 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 150 transitions, 982 flow [2022-12-11 19:09:58,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.18181818181819) internal successors, (904), 11 states have internal predecessors, (904), 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 19:09:58,494 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:09:58,494 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] [2022-12-11 19:09:58,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:09:58,494 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:09:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:09:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash -537050285, now seen corresponding path program 2 times [2022-12-11 19:09:58,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:09:58,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008527895] [2022-12-11 19:09:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:09:58,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:09:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:09:59,760 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 19:09:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:09:59,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008527895] [2022-12-11 19:09:59,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008527895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:09:59,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:09:59,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:09:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494219365] [2022-12-11 19:09:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:09:59,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:09:59,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:09:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:09:59,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:09:59,767 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 112 [2022-12-11 19:09:59,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 150 transitions, 982 flow. Second operand has 14 states, 14 states have (on average 80.78571428571429) internal successors, (1131), 14 states have internal predecessors, (1131), 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 19:09:59,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:09:59,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 112 [2022-12-11 19:09:59,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:00,497 INFO L130 PetriNetUnfolder]: 601/2496 cut-off events. [2022-12-11 19:10:00,498 INFO L131 PetriNetUnfolder]: For 12895/13047 co-relation queries the response was YES. [2022-12-11 19:10:00,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10264 conditions, 2496 events. 601/2496 cut-off events. For 12895/13047 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 24485 event pairs, 69 based on Foata normal form. 21/2404 useless extension candidates. Maximal degree in co-relation 10162. Up to 531 conditions per place. [2022-12-11 19:10:00,517 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 56 selfloop transitions, 31 changer transitions 30/203 dead transitions. [2022-12-11 19:10:00,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 203 transitions, 1942 flow [2022-12-11 19:10:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:10:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:10:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1108 transitions. [2022-12-11 19:10:00,520 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.760989010989011 [2022-12-11 19:10:00,520 INFO L175 Difference]: Start difference. First operand has 173 places, 150 transitions, 982 flow. Second operand 13 states and 1108 transitions. [2022-12-11 19:10:00,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 203 transitions, 1942 flow [2022-12-11 19:10:00,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 203 transitions, 1874 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-12-11 19:10:00,546 INFO L231 Difference]: Finished difference. Result has 176 places, 157 transitions, 1174 flow [2022-12-11 19:10:00,546 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1174, PETRI_PLACES=176, PETRI_TRANSITIONS=157} [2022-12-11 19:10:00,547 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 59 predicate places. [2022-12-11 19:10:00,547 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 157 transitions, 1174 flow [2022-12-11 19:10:00,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 80.78571428571429) internal successors, (1131), 14 states have internal predecessors, (1131), 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 19:10:00,547 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:00,547 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] [2022-12-11 19:10:00,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 19:10:00,548 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1223108497, now seen corresponding path program 3 times [2022-12-11 19:10:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:00,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290779744] [2022-12-11 19:10:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:00,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:02,325 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 19:10:02,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:02,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290779744] [2022-12-11 19:10:02,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290779744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:02,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:02,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-11 19:10:02,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544696730] [2022-12-11 19:10:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:02,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 19:10:02,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:02,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 19:10:02,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-11 19:10:02,327 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-11 19:10:02,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 157 transitions, 1174 flow. Second operand has 15 states, 15 states have (on average 79.73333333333333) internal successors, (1196), 15 states have internal predecessors, (1196), 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 19:10:02,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:02,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-11 19:10:02,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:03,070 INFO L130 PetriNetUnfolder]: 667/2818 cut-off events. [2022-12-11 19:10:03,070 INFO L131 PetriNetUnfolder]: For 19095/19269 co-relation queries the response was YES. [2022-12-11 19:10:03,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12101 conditions, 2818 events. 667/2818 cut-off events. For 19095/19269 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 28950 event pairs, 88 based on Foata normal form. 16/2697 useless extension candidates. Maximal degree in co-relation 11995. Up to 458 conditions per place. [2022-12-11 19:10:03,097 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 57 selfloop transitions, 23 changer transitions 29/194 dead transitions. [2022-12-11 19:10:03,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 194 transitions, 2095 flow [2022-12-11 19:10:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:10:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:10:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2022-12-11 19:10:03,099 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7548701298701299 [2022-12-11 19:10:03,099 INFO L175 Difference]: Start difference. First operand has 176 places, 157 transitions, 1174 flow. Second operand 11 states and 930 transitions. [2022-12-11 19:10:03,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 194 transitions, 2095 flow [2022-12-11 19:10:03,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 194 transitions, 1897 flow, removed 83 selfloop flow, removed 10 redundant places. [2022-12-11 19:10:03,135 INFO L231 Difference]: Finished difference. Result has 174 places, 153 transitions, 1101 flow [2022-12-11 19:10:03,136 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1101, PETRI_PLACES=174, PETRI_TRANSITIONS=153} [2022-12-11 19:10:03,136 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 57 predicate places. [2022-12-11 19:10:03,136 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 153 transitions, 1101 flow [2022-12-11 19:10:03,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 79.73333333333333) internal successors, (1196), 15 states have internal predecessors, (1196), 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 19:10:03,137 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:03,137 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] [2022-12-11 19:10:03,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 19:10:03,137 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1217208843, now seen corresponding path program 4 times [2022-12-11 19:10:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:03,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406444490] [2022-12-11 19:10:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:03,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:03,793 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 19:10:03,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:03,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406444490] [2022-12-11 19:10:03,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406444490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:03,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:03,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-11 19:10:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148601394] [2022-12-11 19:10:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:03,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-11 19:10:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-11 19:10:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-11 19:10:03,795 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 112 [2022-12-11 19:10:03,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 153 transitions, 1101 flow. Second operand has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 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 19:10:03,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:03,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 112 [2022-12-11 19:10:03,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:04,557 INFO L130 PetriNetUnfolder]: 648/2804 cut-off events. [2022-12-11 19:10:04,558 INFO L131 PetriNetUnfolder]: For 15222/15433 co-relation queries the response was YES. [2022-12-11 19:10:04,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11465 conditions, 2804 events. 648/2804 cut-off events. For 15222/15433 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 28973 event pairs, 82 based on Foata normal form. 22/2689 useless extension candidates. Maximal degree in co-relation 11362. Up to 330 conditions per place. [2022-12-11 19:10:04,584 INFO L137 encePairwiseOnDemand]: 97/112 looper letters, 79 selfloop transitions, 40 changer transitions 21/227 dead transitions. [2022-12-11 19:10:04,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 227 transitions, 2525 flow [2022-12-11 19:10:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:10:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:10:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2022-12-11 19:10:04,586 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7850274725274725 [2022-12-11 19:10:04,587 INFO L175 Difference]: Start difference. First operand has 174 places, 153 transitions, 1101 flow. Second operand 13 states and 1143 transitions. [2022-12-11 19:10:04,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 227 transitions, 2525 flow [2022-12-11 19:10:04,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 227 transitions, 2346 flow, removed 46 selfloop flow, removed 13 redundant places. [2022-12-11 19:10:04,623 INFO L231 Difference]: Finished difference. Result has 177 places, 168 transitions, 1409 flow [2022-12-11 19:10:04,623 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1409, PETRI_PLACES=177, PETRI_TRANSITIONS=168} [2022-12-11 19:10:04,623 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 60 predicate places. [2022-12-11 19:10:04,623 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 168 transitions, 1409 flow [2022-12-11 19:10:04,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 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 19:10:04,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:04,624 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] [2022-12-11 19:10:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 19:10:04,624 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2118145991, now seen corresponding path program 5 times [2022-12-11 19:10:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:04,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762174168] [2022-12-11 19:10:04,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:04,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:04,796 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 19:10:04,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:04,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762174168] [2022-12-11 19:10:04,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762174168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:04,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:04,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:10:04,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295975844] [2022-12-11 19:10:04,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:04,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:10:04,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:10:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:10:04,798 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 112 [2022-12-11 19:10:04,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 168 transitions, 1409 flow. Second operand has 8 states, 8 states have (on average 85.5) internal successors, (684), 8 states have internal predecessors, (684), 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 19:10:04,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:04,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 112 [2022-12-11 19:10:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:06,084 INFO L130 PetriNetUnfolder]: 2919/6468 cut-off events. [2022-12-11 19:10:06,085 INFO L131 PetriNetUnfolder]: For 90569/90695 co-relation queries the response was YES. [2022-12-11 19:10:06,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36404 conditions, 6468 events. 2919/6468 cut-off events. For 90569/90695 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 58678 event pairs, 354 based on Foata normal form. 161/6611 useless extension candidates. Maximal degree in co-relation 36348. Up to 1491 conditions per place. [2022-12-11 19:10:06,135 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 136 selfloop transitions, 22 changer transitions 115/353 dead transitions. [2022-12-11 19:10:06,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 353 transitions, 4762 flow [2022-12-11 19:10:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 19:10:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 19:10:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1277 transitions. [2022-12-11 19:10:06,141 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8144132653061225 [2022-12-11 19:10:06,141 INFO L175 Difference]: Start difference. First operand has 177 places, 168 transitions, 1409 flow. Second operand 14 states and 1277 transitions. [2022-12-11 19:10:06,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 353 transitions, 4762 flow [2022-12-11 19:10:06,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 353 transitions, 3979 flow, removed 304 selfloop flow, removed 10 redundant places. [2022-12-11 19:10:06,316 INFO L231 Difference]: Finished difference. Result has 184 places, 164 transitions, 1215 flow [2022-12-11 19:10:06,317 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1215, PETRI_PLACES=184, PETRI_TRANSITIONS=164} [2022-12-11 19:10:06,317 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 67 predicate places. [2022-12-11 19:10:06,317 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 164 transitions, 1215 flow [2022-12-11 19:10:06,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 85.5) internal successors, (684), 8 states have internal predecessors, (684), 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 19:10:06,317 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:06,318 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] [2022-12-11 19:10:06,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 19:10:06,318 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash 931735426, now seen corresponding path program 1 times [2022-12-11 19:10:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974147469] [2022-12-11 19:10:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:06,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:07,427 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 19:10:07,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:07,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974147469] [2022-12-11 19:10:07,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974147469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:07,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:07,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:10:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392583433] [2022-12-11 19:10:07,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:07,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:10:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:07,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:10:07,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:10:07,429 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-11 19:10:07,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 164 transitions, 1215 flow. Second operand has 16 states, 16 states have (on average 79.8125) internal successors, (1277), 16 states have internal predecessors, (1277), 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 19:10:07,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:07,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-11 19:10:07,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:08,391 INFO L130 PetriNetUnfolder]: 770/4008 cut-off events. [2022-12-11 19:10:08,392 INFO L131 PetriNetUnfolder]: For 20558/20958 co-relation queries the response was YES. [2022-12-11 19:10:08,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15786 conditions, 4008 events. 770/4008 cut-off events. For 20558/20958 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 49477 event pairs, 36 based on Foata normal form. 2/3787 useless extension candidates. Maximal degree in co-relation 15680. Up to 552 conditions per place. [2022-12-11 19:10:08,424 INFO L137 encePairwiseOnDemand]: 94/112 looper letters, 60 selfloop transitions, 29 changer transitions 44/219 dead transitions. [2022-12-11 19:10:08,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 219 transitions, 2195 flow [2022-12-11 19:10:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-11 19:10:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-11 19:10:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1399 transitions. [2022-12-11 19:10:08,427 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7347689075630253 [2022-12-11 19:10:08,427 INFO L175 Difference]: Start difference. First operand has 184 places, 164 transitions, 1215 flow. Second operand 17 states and 1399 transitions. [2022-12-11 19:10:08,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 219 transitions, 2195 flow [2022-12-11 19:10:08,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 219 transitions, 1859 flow, removed 144 selfloop flow, removed 22 redundant places. [2022-12-11 19:10:08,577 INFO L231 Difference]: Finished difference. Result has 182 places, 165 transitions, 1166 flow [2022-12-11 19:10:08,577 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1166, PETRI_PLACES=182, PETRI_TRANSITIONS=165} [2022-12-11 19:10:08,577 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 65 predicate places. [2022-12-11 19:10:08,577 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 165 transitions, 1166 flow [2022-12-11 19:10:08,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 79.8125) internal successors, (1277), 16 states have internal predecessors, (1277), 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 19:10:08,578 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:08,578 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] [2022-12-11 19:10:08,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 19:10:08,578 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash 813195446, now seen corresponding path program 2 times [2022-12-11 19:10:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:08,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108504392] [2022-12-11 19:10:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:08,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:09,447 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 19:10:09,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:09,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108504392] [2022-12-11 19:10:09,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108504392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:09,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:09,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-11 19:10:09,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712758198] [2022-12-11 19:10:09,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:09,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:10:09,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:09,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:10:09,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:10:09,449 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 112 [2022-12-11 19:10:09,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 165 transitions, 1166 flow. Second operand has 11 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 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 19:10:09,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:09,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 112 [2022-12-11 19:10:09,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:10,291 INFO L130 PetriNetUnfolder]: 844/4767 cut-off events. [2022-12-11 19:10:10,292 INFO L131 PetriNetUnfolder]: For 10599/10724 co-relation queries the response was YES. [2022-12-11 19:10:10,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15036 conditions, 4767 events. 844/4767 cut-off events. For 10599/10724 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 62888 event pairs, 45 based on Foata normal form. 2/4485 useless extension candidates. Maximal degree in co-relation 14994. Up to 572 conditions per place. [2022-12-11 19:10:10,325 INFO L137 encePairwiseOnDemand]: 99/112 looper letters, 72 selfloop transitions, 23 changer transitions 48/228 dead transitions. [2022-12-11 19:10:10,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 228 transitions, 2211 flow [2022-12-11 19:10:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:10:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:10:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 997 transitions. [2022-12-11 19:10:10,327 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7418154761904762 [2022-12-11 19:10:10,328 INFO L175 Difference]: Start difference. First operand has 182 places, 165 transitions, 1166 flow. Second operand 12 states and 997 transitions. [2022-12-11 19:10:10,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 228 transitions, 2211 flow [2022-12-11 19:10:10,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 228 transitions, 2030 flow, removed 65 selfloop flow, removed 17 redundant places. [2022-12-11 19:10:10,451 INFO L231 Difference]: Finished difference. Result has 176 places, 168 transitions, 1135 flow [2022-12-11 19:10:10,451 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1135, PETRI_PLACES=176, PETRI_TRANSITIONS=168} [2022-12-11 19:10:10,452 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 59 predicate places. [2022-12-11 19:10:10,452 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 168 transitions, 1135 flow [2022-12-11 19:10:10,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 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 19:10:10,452 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:10,452 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] [2022-12-11 19:10:10,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-11 19:10:10,453 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1139562132, now seen corresponding path program 3 times [2022-12-11 19:10:10,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:10,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374341035] [2022-12-11 19:10:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:10,636 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 19:10:10,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:10,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374341035] [2022-12-11 19:10:10,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374341035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:10,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:10,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:10:10,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549305788] [2022-12-11 19:10:10,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:10,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:10:10,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:10,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:10:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:10:10,640 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 112 [2022-12-11 19:10:10,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 168 transitions, 1135 flow. Second operand has 7 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 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 19:10:10,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:10,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 112 [2022-12-11 19:10:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:11,220 INFO L130 PetriNetUnfolder]: 727/3956 cut-off events. [2022-12-11 19:10:11,220 INFO L131 PetriNetUnfolder]: For 9761/9903 co-relation queries the response was YES. [2022-12-11 19:10:11,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12450 conditions, 3956 events. 727/3956 cut-off events. For 9761/9903 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 49053 event pairs, 33 based on Foata normal form. 21/3750 useless extension candidates. Maximal degree in co-relation 12412. Up to 426 conditions per place. [2022-12-11 19:10:11,245 INFO L137 encePairwiseOnDemand]: 106/112 looper letters, 46 selfloop transitions, 1 changer transitions 76/218 dead transitions. [2022-12-11 19:10:11,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 218 transitions, 1878 flow [2022-12-11 19:10:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:10:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:10:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 634 transitions. [2022-12-11 19:10:11,246 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8086734693877551 [2022-12-11 19:10:11,246 INFO L175 Difference]: Start difference. First operand has 176 places, 168 transitions, 1135 flow. Second operand 7 states and 634 transitions. [2022-12-11 19:10:11,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 218 transitions, 1878 flow [2022-12-11 19:10:11,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 218 transitions, 1853 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-12-11 19:10:11,325 INFO L231 Difference]: Finished difference. Result has 176 places, 136 transitions, 778 flow [2022-12-11 19:10:11,325 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=778, PETRI_PLACES=176, PETRI_TRANSITIONS=136} [2022-12-11 19:10:11,325 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 59 predicate places. [2022-12-11 19:10:11,326 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 136 transitions, 778 flow [2022-12-11 19:10:11,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 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 19:10:11,326 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:11,326 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] [2022-12-11 19:10:11,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-11 19:10:11,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:11,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1528652740, now seen corresponding path program 4 times [2022-12-11 19:10:11,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:11,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506946007] [2022-12-11 19:10:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:11,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:13,240 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 19:10:13,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:13,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506946007] [2022-12-11 19:10:13,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506946007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:13,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:13,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:10:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248854351] [2022-12-11 19:10:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:13,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:10:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:13,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:10:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:10:13,243 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 112 [2022-12-11 19:10:13,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 136 transitions, 778 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 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 19:10:13,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:13,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 112 [2022-12-11 19:10:13,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:14,164 INFO L130 PetriNetUnfolder]: 168/1092 cut-off events. [2022-12-11 19:10:14,165 INFO L131 PetriNetUnfolder]: For 2680/2750 co-relation queries the response was YES. [2022-12-11 19:10:14,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3474 conditions, 1092 events. 168/1092 cut-off events. For 2680/2750 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 9895 event pairs, 24 based on Foata normal form. 6/1025 useless extension candidates. Maximal degree in co-relation 3440. Up to 108 conditions per place. [2022-12-11 19:10:14,171 INFO L137 encePairwiseOnDemand]: 98/112 looper letters, 31 selfloop transitions, 11 changer transitions 45/170 dead transitions. [2022-12-11 19:10:14,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 170 transitions, 1301 flow [2022-12-11 19:10:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 19:10:14,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 19:10:14,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1499 transitions. [2022-12-11 19:10:14,173 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7044172932330827 [2022-12-11 19:10:14,173 INFO L175 Difference]: Start difference. First operand has 176 places, 136 transitions, 778 flow. Second operand 19 states and 1499 transitions. [2022-12-11 19:10:14,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 170 transitions, 1301 flow [2022-12-11 19:10:14,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 170 transitions, 1104 flow, removed 63 selfloop flow, removed 14 redundant places. [2022-12-11 19:10:14,185 INFO L231 Difference]: Finished difference. Result has 185 places, 123 transitions, 604 flow [2022-12-11 19:10:14,185 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=604, PETRI_PLACES=185, PETRI_TRANSITIONS=123} [2022-12-11 19:10:14,186 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 68 predicate places. [2022-12-11 19:10:14,186 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 123 transitions, 604 flow [2022-12-11 19:10:14,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 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 19:10:14,186 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:14,186 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] [2022-12-11 19:10:14,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-11 19:10:14,187 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-11 19:10:14,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:14,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1477616010, now seen corresponding path program 5 times [2022-12-11 19:10:14,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:14,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321782650] [2022-12-11 19:10:14,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:14,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:16,368 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 19:10:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:16,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321782650] [2022-12-11 19:10:16,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321782650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:16,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:16,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 19:10:16,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854109175] [2022-12-11 19:10:16,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:16,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 19:10:16,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 19:10:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-12-11 19:10:16,370 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 112 [2022-12-11 19:10:16,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 123 transitions, 604 flow. Second operand has 19 states, 19 states have (on average 76.6842105263158) internal successors, (1457), 19 states have internal predecessors, (1457), 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 19:10:16,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:16,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 112 [2022-12-11 19:10:16,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:16,785 INFO L130 PetriNetUnfolder]: 82/573 cut-off events. [2022-12-11 19:10:16,785 INFO L131 PetriNetUnfolder]: For 929/945 co-relation queries the response was YES. [2022-12-11 19:10:16,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1645 conditions, 573 events. 82/573 cut-off events. For 929/945 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4145 event pairs, 6 based on Foata normal form. 1/548 useless extension candidates. Maximal degree in co-relation 1614. Up to 55 conditions per place. [2022-12-11 19:10:16,788 INFO L137 encePairwiseOnDemand]: 99/112 looper letters, 0 selfloop transitions, 0 changer transitions 125/125 dead transitions. [2022-12-11 19:10:16,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 125 transitions, 722 flow [2022-12-11 19:10:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 19:10:16,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 19:10:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1087 transitions. [2022-12-11 19:10:16,789 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6932397959183674 [2022-12-11 19:10:16,789 INFO L175 Difference]: Start difference. First operand has 185 places, 123 transitions, 604 flow. Second operand 14 states and 1087 transitions. [2022-12-11 19:10:16,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 125 transitions, 722 flow [2022-12-11 19:10:16,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 125 transitions, 646 flow, removed 13 selfloop flow, removed 25 redundant places. [2022-12-11 19:10:16,794 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2022-12-11 19:10:16,794 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2022-12-11 19:10:16,795 INFO L295 CegarLoopForPetriNet]: 117 programPoint places, 43 predicate places. [2022-12-11 19:10:16,795 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2022-12-11 19:10:16,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 76.6842105263158) internal successors, (1457), 19 states have internal predecessors, (1457), 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 19:10:16,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-11 19:10:16,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-11 19:10:16,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-11 19:10:16,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-11 19:10:16,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-11 19:10:16,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-11 19:10:16,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-11 19:10:16,798 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 2, 2, 1, 1, 1, 1] [2022-12-11 19:10:16,802 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:10:16,802 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:10:16,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:10:16 BasicIcfg [2022-12-11 19:10:16,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:10:16,806 INFO L158 Benchmark]: Toolchain (without parser) took 33951.42ms. Allocated memory was 188.7MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 164.0MB in the beginning and 640.5MB in the end (delta: -476.5MB). Peak memory consumption was 886.7MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory was 165.6MB in the beginning and 165.5MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.90ms. Allocated memory is still 188.7MB. Free memory was 164.0MB in the beginning and 132.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.38ms. Allocated memory is still 188.7MB. Free memory was 132.5MB in the beginning and 129.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: Boogie Preprocessor took 28.00ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 126.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: RCFGBuilder took 685.18ms. Allocated memory is still 188.7MB. Free memory was 126.8MB in the beginning and 68.6MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,806 INFO L158 Benchmark]: TraceAbstraction took 32640.69ms. Allocated memory was 188.7MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 67.0MB in the beginning and 640.5MB in the end (delta: -573.5MB). Peak memory consumption was 790.2MB. Max. memory is 8.0GB. [2022-12-11 19:10:16,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory was 165.6MB in the beginning and 165.5MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 518.90ms. Allocated memory is still 188.7MB. Free memory was 164.0MB in the beginning and 132.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.38ms. Allocated memory is still 188.7MB. Free memory was 132.5MB in the beginning and 129.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.00ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 126.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 685.18ms. Allocated memory is still 188.7MB. Free memory was 126.8MB in the beginning and 68.6MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 32640.69ms. Allocated memory was 188.7MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 67.0MB in the beginning and 640.5MB in the end (delta: -573.5MB). Peak memory consumption was 790.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 142 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 32.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1375 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1375 mSDsluCounter, 1329 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1108 mSDsCounter, 440 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4672 IncrementalHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 440 mSolverCounterUnsat, 221 mSDtfsCounter, 4672 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1409occurred in iteration=12, InterpolantAutomatonStates: 214, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 1432 NumberOfCodeBlocks, 1432 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1414 ConstructedInterpolants, 0 QuantifiedInterpolants, 9418 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:10:16,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...