/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:40:05,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:40:05,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:40:05,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:40:05,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:40:05,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:40:05,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:40:05,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:40:05,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:40:05,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:40:05,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:40:05,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:40:05,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:40:05,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:40:05,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:40:05,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:40:05,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:40:05,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:40:05,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:40:05,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:40:05,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:40:05,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:40:05,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:40:05,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:40:05,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:40:05,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:40:05,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:40:05,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:40:05,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:40:05,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:40:05,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:40:05,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:40:05,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:40:05,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:40:05,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:40:05,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:40:05,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:40:05,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:40:05,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:40:05,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:40:05,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:40:05,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 14:40:05,498 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:40:05,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:40:05,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:40:05,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:40:05,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:40:05,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:40:05,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:40:05,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:40:05,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:40:05,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:40:05,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:40:05,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:40:05,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:40:05,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:40:05,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:40:05,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:40:05,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:40:05,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:40:05,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:40:05,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:40:05,844 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:40:05,844 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:40:05,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2022-12-12 14:40:06,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:40:07,170 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:40:07,170 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.i [2022-12-12 14:40:07,194 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2f13080/cf98215a0c954b4fb2db3c3d97eed73f/FLAG6efebfd4a [2022-12-12 14:40:07,210 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2f13080/cf98215a0c954b4fb2db3c3d97eed73f [2022-12-12 14:40:07,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:40:07,214 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:40:07,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:40:07,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:40:07,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:40:07,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee2e8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07, skipping insertion in model container [2022-12-12 14:40:07,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:40:07,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:40:07,432 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/safe005_tso.i[945,958] [2022-12-12 14:40:07,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:40:07,604 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:40:07,616 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/safe005_tso.i[945,958] [2022-12-12 14:40:07,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:40:07,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:40:07,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:40:07,693 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:40:07,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07 WrapperNode [2022-12-12 14:40:07,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:40:07,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:40:07,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:40:07,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:40:07,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,741 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-12 14:40:07,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:40:07,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:40:07,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:40:07,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:40:07,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:40:07,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:40:07,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:40:07,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:40:07,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (1/1) ... [2022-12-12 14:40:07,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:40:07,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:40:07,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 14:40:07,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 14:40:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 14:40:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 14:40:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 14:40:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 14:40:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:40:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:40:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:40:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:40:07,917 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:40:08,007 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:40:08,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:40:08,170 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:40:08,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:40:08,175 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:40:08,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:40:08 BoogieIcfgContainer [2022-12-12 14:40:08,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:40:08,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:40:08,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:40:08,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:40:08,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:40:07" (1/3) ... [2022-12-12 14:40:08,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0d52f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:40:08, skipping insertion in model container [2022-12-12 14:40:08,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:40:07" (2/3) ... [2022-12-12 14:40:08,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0d52f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:40:08, skipping insertion in model container [2022-12-12 14:40:08,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:40:08" (3/3) ... [2022-12-12 14:40:08,196 INFO L112 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2022-12-12 14:40:08,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:40:08,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 14:40:08,212 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:40:08,267 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 14:40:08,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 14:40:08,337 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-12 14:40:08,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:40:08,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 14:40:08,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 14:40:08,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-12 14:40:08,348 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:40:08,362 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-12 14:40:08,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-12 14:40:08,384 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-12 14:40:08,384 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:40:08,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 14:40:08,387 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-12 14:40:08,387 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 14:40:10,195 INFO L241 LiptonReduction]: Total number of compositions: 53 [2022-12-12 14:40:10,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:40:10,218 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;@765f6936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:40:10,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 14:40:10,235 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-12-12 14:40:10,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:40:10,236 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:10,237 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:10,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 254003369, now seen corresponding path program 1 times [2022-12-12 14:40:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:10,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405843098] [2022-12-12 14:40:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:10,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:10,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:10,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:10,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405843098] [2022-12-12 14:40:10,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405843098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:10,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:10,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:40:10,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329712461] [2022-12-12 14:40:10,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:10,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:40:10,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:10,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:40:10,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:40:10,654 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:10,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:10,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:10,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:10,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:10,892 INFO L130 PetriNetUnfolder]: 1288/2134 cut-off events. [2022-12-12 14:40:10,892 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-12 14:40:10,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4224 conditions, 2134 events. 1288/2134 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 12048 event pairs, 447 based on Foata normal form. 117/1811 useless extension candidates. Maximal degree in co-relation 4213. Up to 1029 conditions per place. [2022-12-12 14:40:10,907 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 30 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2022-12-12 14:40:10,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 171 flow [2022-12-12 14:40:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:40:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:40:10,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-12-12 14:40:10,917 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2022-12-12 14:40:10,918 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 57 transitions. [2022-12-12 14:40:10,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 171 flow [2022-12-12 14:40:10,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:40:10,923 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 100 flow [2022-12-12 14:40:10,924 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2022-12-12 14:40:10,927 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-12-12 14:40:10,928 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 100 flow [2022-12-12 14:40:10,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:10,928 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:10,928 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:10,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:40:10,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash -715829685, now seen corresponding path program 1 times [2022-12-12 14:40:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:10,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292186546] [2022-12-12 14:40:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:11,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292186546] [2022-12-12 14:40:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292186546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:11,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:11,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 14:40:11,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694027382] [2022-12-12 14:40:11,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:11,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:40:11,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:40:11,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:40:11,097 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:40:11,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:11,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:40:11,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:11,243 INFO L130 PetriNetUnfolder]: 875/1543 cut-off events. [2022-12-12 14:40:11,243 INFO L131 PetriNetUnfolder]: For 534/539 co-relation queries the response was YES. [2022-12-12 14:40:11,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3523 conditions, 1543 events. 875/1543 cut-off events. For 534/539 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 9099 event pairs, 416 based on Foata normal form. 33/1182 useless extension candidates. Maximal degree in co-relation 3511. Up to 853 conditions per place. [2022-12-12 14:40:11,252 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 22 selfloop transitions, 3 changer transitions 2/37 dead transitions. [2022-12-12 14:40:11,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 172 flow [2022-12-12 14:40:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:40:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:40:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2022-12-12 14:40:11,253 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6172839506172839 [2022-12-12 14:40:11,253 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 100 flow. Second operand 3 states and 50 transitions. [2022-12-12 14:40:11,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 172 flow [2022-12-12 14:40:11,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:40:11,259 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 99 flow [2022-12-12 14:40:11,259 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-12 14:40:11,260 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-12 14:40:11,260 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 99 flow [2022-12-12 14:40:11,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,260 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:11,260 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:11,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:40:11,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash -757411073, now seen corresponding path program 1 times [2022-12-12 14:40:11,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:11,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972746018] [2022-12-12 14:40:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:11,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972746018] [2022-12-12 14:40:11,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972746018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:11,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:11,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:40:11,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310012459] [2022-12-12 14:40:11,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:11,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:40:11,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:40:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:40:11,436 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:11,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:11,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:11,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:11,630 INFO L130 PetriNetUnfolder]: 1403/2408 cut-off events. [2022-12-12 14:40:11,630 INFO L131 PetriNetUnfolder]: For 638/638 co-relation queries the response was YES. [2022-12-12 14:40:11,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5512 conditions, 2408 events. 1403/2408 cut-off events. For 638/638 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 14422 event pairs, 255 based on Foata normal form. 60/1916 useless extension candidates. Maximal degree in co-relation 5499. Up to 1179 conditions per place. [2022-12-12 14:40:11,642 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 40 selfloop transitions, 8 changer transitions 9/63 dead transitions. [2022-12-12 14:40:11,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 63 transitions, 304 flow [2022-12-12 14:40:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:40:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:40:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2022-12-12 14:40:11,646 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2022-12-12 14:40:11,646 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 99 flow. Second operand 5 states and 84 transitions. [2022-12-12 14:40:11,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 63 transitions, 304 flow [2022-12-12 14:40:11,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:40:11,649 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 144 flow [2022-12-12 14:40:11,650 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2022-12-12 14:40:11,650 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2022-12-12 14:40:11,650 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 144 flow [2022-12-12 14:40:11,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,651 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:11,651 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:11,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:40:11,651 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:11,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2002948355, now seen corresponding path program 1 times [2022-12-12 14:40:11,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:11,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921767457] [2022-12-12 14:40:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:11,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921767457] [2022-12-12 14:40:11,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921767457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:11,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:11,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:40:11,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348143344] [2022-12-12 14:40:11,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:11,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:40:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:11,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:40:11,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:40:11,731 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 14:40:11,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:11,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 14:40:11,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:11,932 INFO L130 PetriNetUnfolder]: 1275/2277 cut-off events. [2022-12-12 14:40:11,932 INFO L131 PetriNetUnfolder]: For 1436/1440 co-relation queries the response was YES. [2022-12-12 14:40:11,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5476 conditions, 2277 events. 1275/2277 cut-off events. For 1436/1440 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 14496 event pairs, 352 based on Foata normal form. 76/1766 useless extension candidates. Maximal degree in co-relation 5460. Up to 602 conditions per place. [2022-12-12 14:40:11,940 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 31 selfloop transitions, 5 changer transitions 20/64 dead transitions. [2022-12-12 14:40:11,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 64 transitions, 336 flow [2022-12-12 14:40:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:40:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:40:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2022-12-12 14:40:11,941 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2022-12-12 14:40:11,941 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 144 flow. Second operand 5 states and 88 transitions. [2022-12-12 14:40:11,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 64 transitions, 336 flow [2022-12-12 14:40:11,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 327 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-12 14:40:11,944 INFO L231 Difference]: Finished difference. Result has 50 places, 32 transitions, 152 flow [2022-12-12 14:40:11,944 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=50, PETRI_TRANSITIONS=32} [2022-12-12 14:40:11,945 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 14 predicate places. [2022-12-12 14:40:11,945 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 152 flow [2022-12-12 14:40:11,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:11,945 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:11,945 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:11,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:40:11,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:11,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:11,946 INFO L85 PathProgramCache]: Analyzing trace with hash -292332679, now seen corresponding path program 1 times [2022-12-12 14:40:11,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:11,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993652779] [2022-12-12 14:40:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:11,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:12,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:12,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993652779] [2022-12-12 14:40:12,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993652779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:12,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:12,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:40:12,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412974606] [2022-12-12 14:40:12,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:12,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:40:12,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:12,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:40:12,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:40:12,038 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-12 14:40:12,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 32 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:12,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-12 14:40:12,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:12,188 INFO L130 PetriNetUnfolder]: 735/1371 cut-off events. [2022-12-12 14:40:12,188 INFO L131 PetriNetUnfolder]: For 1473/1473 co-relation queries the response was YES. [2022-12-12 14:40:12,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3240 conditions, 1371 events. 735/1371 cut-off events. For 1473/1473 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 8273 event pairs, 185 based on Foata normal form. 54/1026 useless extension candidates. Maximal degree in co-relation 3221. Up to 634 conditions per place. [2022-12-12 14:40:12,195 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 24 selfloop transitions, 2 changer transitions 17/51 dead transitions. [2022-12-12 14:40:12,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 287 flow [2022-12-12 14:40:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:40:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:40:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2022-12-12 14:40:12,196 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-12-12 14:40:12,196 INFO L175 Difference]: Start difference. First operand has 50 places, 32 transitions, 152 flow. Second operand 4 states and 69 transitions. [2022-12-12 14:40:12,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 287 flow [2022-12-12 14:40:12,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 259 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-12 14:40:12,201 INFO L231 Difference]: Finished difference. Result has 45 places, 26 transitions, 95 flow [2022-12-12 14:40:12,201 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=45, PETRI_TRANSITIONS=26} [2022-12-12 14:40:12,202 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2022-12-12 14:40:12,202 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 26 transitions, 95 flow [2022-12-12 14:40:12,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,202 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:12,202 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:12,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:40:12,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:12,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1991576279, now seen corresponding path program 1 times [2022-12-12 14:40:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:12,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336252557] [2022-12-12 14:40:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:12,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336252557] [2022-12-12 14:40:12,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336252557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:12,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:12,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:40:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793521082] [2022-12-12 14:40:12,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:12,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:40:12,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:40:12,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:40:12,295 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:12,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 26 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:12,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:12,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:12,372 INFO L130 PetriNetUnfolder]: 380/702 cut-off events. [2022-12-12 14:40:12,372 INFO L131 PetriNetUnfolder]: For 402/402 co-relation queries the response was YES. [2022-12-12 14:40:12,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 702 events. 380/702 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3350 event pairs, 115 based on Foata normal form. 9/514 useless extension candidates. Maximal degree in co-relation 1619. Up to 289 conditions per place. [2022-12-12 14:40:12,375 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 27 selfloop transitions, 4 changer transitions 9/45 dead transitions. [2022-12-12 14:40:12,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 232 flow [2022-12-12 14:40:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:40:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:40:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2022-12-12 14:40:12,376 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2022-12-12 14:40:12,376 INFO L175 Difference]: Start difference. First operand has 45 places, 26 transitions, 95 flow. Second operand 5 states and 70 transitions. [2022-12-12 14:40:12,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 232 flow [2022-12-12 14:40:12,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 215 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-12 14:40:12,378 INFO L231 Difference]: Finished difference. Result has 45 places, 25 transitions, 93 flow [2022-12-12 14:40:12,378 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=45, PETRI_TRANSITIONS=25} [2022-12-12 14:40:12,378 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2022-12-12 14:40:12,378 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 25 transitions, 93 flow [2022-12-12 14:40:12,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,378 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:12,379 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:12,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:40:12,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:12,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash -601768257, now seen corresponding path program 2 times [2022-12-12 14:40:12,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:12,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857815377] [2022-12-12 14:40:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:12,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:12,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:12,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857815377] [2022-12-12 14:40:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857815377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:12,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:40:12,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924911856] [2022-12-12 14:40:12,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:12,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:40:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:12,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:40:12,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:40:12,459 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:12,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 25 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:12,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:12,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:12,573 INFO L130 PetriNetUnfolder]: 470/829 cut-off events. [2022-12-12 14:40:12,573 INFO L131 PetriNetUnfolder]: For 578/595 co-relation queries the response was YES. [2022-12-12 14:40:12,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 829 events. 470/829 cut-off events. For 578/595 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 4336 event pairs, 206 based on Foata normal form. 16/405 useless extension candidates. Maximal degree in co-relation 1931. Up to 586 conditions per place. [2022-12-12 14:40:12,576 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 23 selfloop transitions, 7 changer transitions 27/62 dead transitions. [2022-12-12 14:40:12,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 62 transitions, 316 flow [2022-12-12 14:40:12,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:40:12,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:40:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2022-12-12 14:40:12,577 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2022-12-12 14:40:12,577 INFO L175 Difference]: Start difference. First operand has 45 places, 25 transitions, 93 flow. Second operand 5 states and 89 transitions. [2022-12-12 14:40:12,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 62 transitions, 316 flow [2022-12-12 14:40:12,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 275 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-12-12 14:40:12,579 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 148 flow [2022-12-12 14:40:12,580 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2022-12-12 14:40:12,580 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2022-12-12 14:40:12,580 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 148 flow [2022-12-12 14:40:12,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,580 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:12,581 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:12,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:40:12,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:12,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1173544204, now seen corresponding path program 1 times [2022-12-12 14:40:12,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:12,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073663319] [2022-12-12 14:40:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:12,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:12,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073663319] [2022-12-12 14:40:12,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073663319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:12,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:12,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:40:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859224492] [2022-12-12 14:40:12,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:12,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 14:40:12,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:12,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 14:40:12,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 14:40:12,659 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:12,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:12,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:12,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:12,745 INFO L130 PetriNetUnfolder]: 278/566 cut-off events. [2022-12-12 14:40:12,745 INFO L131 PetriNetUnfolder]: For 417/490 co-relation queries the response was YES. [2022-12-12 14:40:12,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 566 events. 278/566 cut-off events. For 417/490 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 3155 event pairs, 29 based on Foata normal form. 18/308 useless extension candidates. Maximal degree in co-relation 2148. Up to 478 conditions per place. [2022-12-12 14:40:12,747 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 18 selfloop transitions, 13 changer transitions 31/67 dead transitions. [2022-12-12 14:40:12,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 67 transitions, 470 flow [2022-12-12 14:40:12,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:40:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:40:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2022-12-12 14:40:12,748 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6172839506172839 [2022-12-12 14:40:12,748 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 148 flow. Second operand 6 states and 100 transitions. [2022-12-12 14:40:12,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 67 transitions, 470 flow [2022-12-12 14:40:12,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 67 transitions, 461 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-12 14:40:12,751 INFO L231 Difference]: Finished difference. Result has 49 places, 31 transitions, 195 flow [2022-12-12 14:40:12,751 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=49, PETRI_TRANSITIONS=31} [2022-12-12 14:40:12,751 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2022-12-12 14:40:12,751 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 31 transitions, 195 flow [2022-12-12 14:40:12,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,752 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:40:12,752 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:12,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 14:40:12,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 14:40:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:40:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1874428605, now seen corresponding path program 1 times [2022-12-12 14:40:12,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:40:12,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010697665] [2022-12-12 14:40:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:40:12,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:40:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:40:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:40:12,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:40:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010697665] [2022-12-12 14:40:12,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010697665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:40:12,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:40:12,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:40:12,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482402070] [2022-12-12 14:40:12,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:40:12,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:40:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:40:12,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:40:12,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:40:12,830 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 14:40:12,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 31 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:40:12,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 14:40:12,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:40:12,892 INFO L130 PetriNetUnfolder]: 53/209 cut-off events. [2022-12-12 14:40:12,893 INFO L131 PetriNetUnfolder]: For 296/366 co-relation queries the response was YES. [2022-12-12 14:40:12,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 209 events. 53/209 cut-off events. For 296/366 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1282 event pairs, 2 based on Foata normal form. 13/143 useless extension candidates. Maximal degree in co-relation 974. Up to 157 conditions per place. [2022-12-12 14:40:12,893 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2022-12-12 14:40:12,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 40 transitions, 311 flow [2022-12-12 14:40:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:40:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:40:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 78 transitions. [2022-12-12 14:40:12,894 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2022-12-12 14:40:12,894 INFO L175 Difference]: Start difference. First operand has 49 places, 31 transitions, 195 flow. Second operand 7 states and 78 transitions. [2022-12-12 14:40:12,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 40 transitions, 311 flow [2022-12-12 14:40:12,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 241 flow, removed 25 selfloop flow, removed 6 redundant places. [2022-12-12 14:40:12,896 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2022-12-12 14:40:12,896 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2022-12-12 14:40:12,897 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places. [2022-12-12 14:40:12,897 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2022-12-12 14:40:12,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:40:12,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 14:40:12,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 14:40:12,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 14:40:12,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 14:40:12,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 14:40:12,900 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:40:12,901 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:40:12,902 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:40:12,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:40:12 BasicIcfg [2022-12-12 14:40:12,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:40:12,904 INFO L158 Benchmark]: Toolchain (without parser) took 5690.70ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 126.9MB in the beginning and 102.1MB in the end (delta: 24.8MB). Peak memory consumption was 114.0MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,904 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:40:12,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.94ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 103.4MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.20ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,905 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,905 INFO L158 Benchmark]: RCFGBuilder took 405.87ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 86.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,905 INFO L158 Benchmark]: TraceAbstraction took 4724.70ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 85.0MB in the beginning and 102.1MB in the end (delta: -17.1MB). Peak memory consumption was 72.0MB. Max. memory is 8.0GB. [2022-12-12 14:40:12,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.94ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 103.4MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.20ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 405.87ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 86.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4724.70ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 85.0MB in the beginning and 102.1MB in the end (delta: -17.1MB). Peak memory consumption was 72.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 79 PlacesBefore, 36 PlacesAfterwards, 70 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 957, independent: 897, independent conditional: 897, independent unconditional: 0, dependent: 60, dependent conditional: 60, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 957, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 957, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 957, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 767, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 767, independent: 719, independent conditional: 0, independent unconditional: 719, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 957, independent: 169, independent conditional: 0, independent unconditional: 169, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 767, unknown conditional: 0, unknown unconditional: 767] , Statistics on independence cache: Total cache size (in pairs): 1135, Positive cache size: 1096, Positive conditional cache size: 0, Positive unconditional cache size: 1096, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 14 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 14:40:12,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...