/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:43:01,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:43:01,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:43:01,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:43:01,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:43:01,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:43:01,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:43:01,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:43:01,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:43:01,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:43:01,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:43:01,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:43:01,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:43:01,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:43:01,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:43:01,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:43:01,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:43:01,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:43:01,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:43:01,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:43:01,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:43:01,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:43:01,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:43:01,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:43:01,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:43:01,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:43:01,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:43:01,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:43:01,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:43:01,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:43:01,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:43:01,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:43:01,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:43:01,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:43:01,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:43:01,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:43:01,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:43:01,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:43:01,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:43:01,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:43:01,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:43:01,611 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:43:01,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:43:01,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:43:01,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:43:01,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:43:01,640 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:43:01,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:43:01,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:43:01,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:43:01,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:43:01,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:43:01,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:43:01,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:43:01,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:43:01,642 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:43:01,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:43:01,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:43:01,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:43:01,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:43:01,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:43:01,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:43:01,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:43:01,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:43:01,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:43:01,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:43:01,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:43:01,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:43:01,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:43:01,925 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:43:01,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-06 06:43:02,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:43:03,187 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:43:03,188 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-06 06:43:03,197 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b6f8ea9/386aba1c36fb4eb39d11c839b12d3e1c/FLAG2c48682a2 [2022-12-06 06:43:03,209 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b6f8ea9/386aba1c36fb4eb39d11c839b12d3e1c [2022-12-06 06:43:03,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:43:03,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:43:03,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:43:03,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:43:03,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:43:03,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c33dba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03, skipping insertion in model container [2022-12-06 06:43:03,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:43:03,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:43:03,383 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/safe024_tso.i[945,958] [2022-12-06 06:43:03,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:43:03,563 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:43:03,575 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/safe024_tso.i[945,958] [2022-12-06 06:43:03,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:43:03,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:43:03,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:43:03,652 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:43:03,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03 WrapperNode [2022-12-06 06:43:03,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:43:03,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:43:03,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:43:03,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:43:03,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,703 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-06 06:43:03,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:43:03,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:43:03,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:43:03,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:43:03,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:43:03,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:43:03,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:43:03,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:43:03,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (1/1) ... [2022-12-06 06:43:03,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:43:03,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:43:03,781 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) [2022-12-06 06:43:03,800 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 [2022-12-06 06:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 06:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 06:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 06:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 06:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 06:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 06:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 06:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 06:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:43:03,819 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:43:03,940 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:43:03,942 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:43:04,094 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:43:04,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:43:04,100 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 06:43:04,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:43:04 BoogieIcfgContainer [2022-12-06 06:43:04,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:43:04,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:43:04,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:43:04,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:43:04,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:43:03" (1/3) ... [2022-12-06 06:43:04,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1352fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:43:04, skipping insertion in model container [2022-12-06 06:43:04,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:43:03" (2/3) ... [2022-12-06 06:43:04,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1352fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:43:04, skipping insertion in model container [2022-12-06 06:43:04,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:43:04" (3/3) ... [2022-12-06 06:43:04,108 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2022-12-06 06:43:04,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:43:04,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 06:43:04,124 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:43:04,178 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 06:43:04,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-06 06:43:04,269 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-06 06:43:04,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:04,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 06:43:04,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-06 06:43:04,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-06 06:43:04,279 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:04,306 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-06 06:43:04,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-06 06:43:04,337 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-06 06:43:04,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:04,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 06:43:04,339 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-06 06:43:04,339 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 06:43:06,360 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-06 06:43:06,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:43:06,377 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=REPEATED_LIPTON_PN, 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;@45396949, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:43:06,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 06:43:06,380 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 06:43:06,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:06,380 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:06,381 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:06,381 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)] === [2022-12-06 06:43:06,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:06,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1377651863, now seen corresponding path program 1 times [2022-12-06 06:43:06,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:06,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199735185] [2022-12-06 06:43:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:06,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:06,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199735185] [2022-12-06 06:43:06,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199735185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:06,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:06,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:43:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600673982] [2022-12-06 06:43:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:06,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:43:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:06,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:43:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:43:06,825 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-06 06:43:06,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-06 06:43:06,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:06,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-06 06:43:06,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:06,958 INFO L130 PetriNetUnfolder]: 289/462 cut-off events. [2022-12-06 06:43:06,958 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-06 06:43:06,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 462 events. 289/462 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1772 event pairs, 85 based on Foata normal form. 6/466 useless extension candidates. Maximal degree in co-relation 950. Up to 407 conditions per place. [2022-12-06 06:43:06,967 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 23 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2022-12-06 06:43:06,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 121 flow [2022-12-06 06:43:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:43:06,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:43:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-06 06:43:06,979 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2022-12-06 06:43:06,980 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 32 transitions. [2022-12-06 06:43:06,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 121 flow [2022-12-06 06:43:06,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 06:43:06,986 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:06,988 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-06 06:43:06,992 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-06 06:43:06,993 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:06,993 INFO L89 Accepts]: Start accepts. Operand has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:06,995 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:06,996 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:06,996 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:07,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:07,012 INFO L130 PetriNetUnfolder]: 3/27 cut-off events. [2022-12-06 06:43:07,012 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:07,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 27 events. 3/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2022-12-06 06:43:07,013 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:07,013 INFO L188 LiptonReduction]: Number of co-enabled transitions 136 [2022-12-06 06:43:07,043 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:07,046 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-06 06:43:07,046 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 59 flow [2022-12-06 06:43:07,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-06 06:43:07,047 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:07,047 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:07,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:43:07,051 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)] === [2022-12-06 06:43:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:07,052 INFO L85 PathProgramCache]: Analyzing trace with hash 242464813, now seen corresponding path program 1 times [2022-12-06 06:43:07,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:07,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751654397] [2022-12-06 06:43:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:07,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:07,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751654397] [2022-12-06 06:43:07,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751654397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:07,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:07,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:43:07,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836087258] [2022-12-06 06:43:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:07,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:07,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:07,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:07,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:07,179 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 06:43:07,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 59 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 06:43:07,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:07,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 06:43:07,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:07,297 INFO L130 PetriNetUnfolder]: 443/696 cut-off events. [2022-12-06 06:43:07,297 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-12-06 06:43:07,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 696 events. 443/696 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2604 event pairs, 75 based on Foata normal form. 16/712 useless extension candidates. Maximal degree in co-relation 1610. Up to 315 conditions per place. [2022-12-06 06:43:07,307 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 39 selfloop transitions, 11 changer transitions 0/50 dead transitions. [2022-12-06 06:43:07,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 50 transitions, 245 flow [2022-12-06 06:43:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2022-12-06 06:43:07,309 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-06 06:43:07,310 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 59 flow. Second operand 5 states and 50 transitions. [2022-12-06 06:43:07,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 50 transitions, 245 flow [2022-12-06 06:43:07,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 50 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 06:43:07,312 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,313 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2022-12-06 06:43:07,313 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2022-12-06 06:43:07,314 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:07,314 INFO L89 Accepts]: Start accepts. Operand has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,315 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:07,315 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:07,315 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,323 INFO L130 PetriNetUnfolder]: 21/67 cut-off events. [2022-12-06 06:43:07,324 INFO L131 PetriNetUnfolder]: For 47/50 co-relation queries the response was YES. [2022-12-06 06:43:07,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 67 events. 21/67 cut-off events. For 47/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 215 event pairs, 4 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 180. Up to 30 conditions per place. [2022-12-06 06:43:07,325 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,325 INFO L188 LiptonReduction]: Number of co-enabled transitions 174 [2022-12-06 06:43:07,333 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:07,334 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 20 [2022-12-06 06:43:07,335 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 136 flow [2022-12-06 06:43:07,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 06:43:07,335 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:07,336 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:07,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:43:07,336 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)] === [2022-12-06 06:43:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash -849574375, now seen corresponding path program 1 times [2022-12-06 06:43:07,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:07,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632331703] [2022-12-06 06:43:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:07,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:07,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:07,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632331703] [2022-12-06 06:43:07,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632331703] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:07,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:07,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:43:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282552640] [2022-12-06 06:43:07,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:07,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:43:07,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:43:07,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:43:07,511 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 06:43:07,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-06 06:43:07,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:07,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 06:43:07,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:07,586 INFO L130 PetriNetUnfolder]: 286/503 cut-off events. [2022-12-06 06:43:07,586 INFO L131 PetriNetUnfolder]: For 415/422 co-relation queries the response was YES. [2022-12-06 06:43:07,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1407 conditions, 503 events. 286/503 cut-off events. For 415/422 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2183 event pairs, 75 based on Foata normal form. 8/492 useless extension candidates. Maximal degree in co-relation 1392. Up to 301 conditions per place. [2022-12-06 06:43:07,592 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 17 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2022-12-06 06:43:07,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 190 flow [2022-12-06 06:43:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:43:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:43:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-06 06:43:07,594 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5686274509803921 [2022-12-06 06:43:07,594 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 136 flow. Second operand 3 states and 29 transitions. [2022-12-06 06:43:07,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 190 flow [2022-12-06 06:43:07,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 06:43:07,600 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,600 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-06 06:43:07,601 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2022-12-06 06:43:07,601 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:07,601 INFO L89 Accepts]: Start accepts. Operand has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,602 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:07,602 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:07,603 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,610 INFO L130 PetriNetUnfolder]: 17/57 cut-off events. [2022-12-06 06:43:07,610 INFO L131 PetriNetUnfolder]: For 67/69 co-relation queries the response was YES. [2022-12-06 06:43:07,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 57 events. 17/57 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 175 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 160. Up to 27 conditions per place. [2022-12-06 06:43:07,611 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,611 INFO L188 LiptonReduction]: Number of co-enabled transitions 174 [2022-12-06 06:43:07,616 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:07,617 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16 [2022-12-06 06:43:07,617 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 147 flow [2022-12-06 06:43:07,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-06 06:43:07,618 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:07,618 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:07,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:43:07,618 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)] === [2022-12-06 06:43:07,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:07,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1073527147, now seen corresponding path program 1 times [2022-12-06 06:43:07,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:07,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016422986] [2022-12-06 06:43:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:07,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:07,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:07,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016422986] [2022-12-06 06:43:07,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016422986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:07,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:07,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:07,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542236184] [2022-12-06 06:43:07,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:07,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:07,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:07,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:07,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:07,746 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 06:43:07,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 147 flow. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-06 06:43:07,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:07,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 06:43:07,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:07,859 INFO L130 PetriNetUnfolder]: 421/678 cut-off events. [2022-12-06 06:43:07,859 INFO L131 PetriNetUnfolder]: For 907/907 co-relation queries the response was YES. [2022-12-06 06:43:07,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 678 events. 421/678 cut-off events. For 907/907 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2600 event pairs, 153 based on Foata normal form. 40/718 useless extension candidates. Maximal degree in co-relation 1980. Up to 244 conditions per place. [2022-12-06 06:43:07,862 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 25 selfloop transitions, 5 changer transitions 12/42 dead transitions. [2022-12-06 06:43:07,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 283 flow [2022-12-06 06:43:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 06:43:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 06:43:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-06 06:43:07,863 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2022-12-06 06:43:07,863 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 147 flow. Second operand 4 states and 35 transitions. [2022-12-06 06:43:07,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 283 flow [2022-12-06 06:43:07,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 06:43:07,866 INFO L231 Difference]: Finished difference. Result has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,866 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2022-12-06 06:43:07,866 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2022-12-06 06:43:07,866 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:07,866 INFO L89 Accepts]: Start accepts. Operand has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,867 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:07,867 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:07,867 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,871 INFO L130 PetriNetUnfolder]: 7/32 cut-off events. [2022-12-06 06:43:07,871 INFO L131 PetriNetUnfolder]: For 50/51 co-relation queries the response was YES. [2022-12-06 06:43:07,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 32 events. 7/32 cut-off events. For 50/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 2 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 100. Up to 15 conditions per place. [2022-12-06 06:43:07,871 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,871 INFO L188 LiptonReduction]: Number of co-enabled transitions 118 [2022-12-06 06:43:07,872 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:07,873 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 06:43:07,873 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 118 flow [2022-12-06 06:43:07,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-06 06:43:07,873 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:07,873 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:07,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 06:43:07,874 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)] === [2022-12-06 06:43:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1132279814, now seen corresponding path program 1 times [2022-12-06 06:43:07,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:07,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175478644] [2022-12-06 06:43:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:07,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175478644] [2022-12-06 06:43:07,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175478644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:07,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:07,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:43:07,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390151352] [2022-12-06 06:43:07,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:07,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:07,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:07,950 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 06:43:07,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 21 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-06 06:43:07,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:07,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 06:43:07,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:07,995 INFO L130 PetriNetUnfolder]: 131/258 cut-off events. [2022-12-06 06:43:07,995 INFO L131 PetriNetUnfolder]: For 829/849 co-relation queries the response was YES. [2022-12-06 06:43:07,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 258 events. 131/258 cut-off events. For 829/849 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1034 event pairs, 27 based on Foata normal form. 22/267 useless extension candidates. Maximal degree in co-relation 791. Up to 108 conditions per place. [2022-12-06 06:43:07,997 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 29 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-06 06:43:07,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 260 flow [2022-12-06 06:43:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 06:43:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 06:43:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-06 06:43:07,998 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6617647058823529 [2022-12-06 06:43:07,998 INFO L175 Difference]: Start difference. First operand has 38 places, 21 transitions, 118 flow. Second operand 4 states and 45 transitions. [2022-12-06 06:43:07,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 260 flow [2022-12-06 06:43:07,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 221 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-06 06:43:08,000 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 131 flow [2022-12-06 06:43:08,000 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2022-12-06 06:43:08,000 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-06 06:43:08,001 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:08,001 INFO L89 Accepts]: Start accepts. Operand has 37 places, 25 transitions, 131 flow [2022-12-06 06:43:08,001 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:08,001 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:08,001 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 131 flow [2022-12-06 06:43:08,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 131 flow [2022-12-06 06:43:08,008 INFO L130 PetriNetUnfolder]: 33/88 cut-off events. [2022-12-06 06:43:08,009 INFO L131 PetriNetUnfolder]: For 245/293 co-relation queries the response was YES. [2022-12-06 06:43:08,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 88 events. 33/88 cut-off events. For 245/293 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 328 event pairs, 12 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 278. Up to 59 conditions per place. [2022-12-06 06:43:08,009 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 131 flow [2022-12-06 06:43:08,010 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-06 06:43:08,085 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:43:08,086 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 85 [2022-12-06 06:43:08,086 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 141 flow [2022-12-06 06:43:08,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-06 06:43:08,086 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:08,087 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:08,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 06:43:08,087 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)] === [2022-12-06 06:43:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2000349020, now seen corresponding path program 1 times [2022-12-06 06:43:08,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:08,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254694472] [2022-12-06 06:43:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:08,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:08,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:08,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254694472] [2022-12-06 06:43:08,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254694472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:08,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:08,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:08,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017653007] [2022-12-06 06:43:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:08,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:08,166 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 06:43:08,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-12-06 06:43:08,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:08,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 06:43:08,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:08,217 INFO L130 PetriNetUnfolder]: 82/176 cut-off events. [2022-12-06 06:43:08,217 INFO L131 PetriNetUnfolder]: For 439/474 co-relation queries the response was YES. [2022-12-06 06:43:08,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 176 events. 82/176 cut-off events. For 439/474 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 618 event pairs, 13 based on Foata normal form. 27/196 useless extension candidates. Maximal degree in co-relation 595. Up to 72 conditions per place. [2022-12-06 06:43:08,218 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 31 selfloop transitions, 8 changer transitions 0/45 dead transitions. [2022-12-06 06:43:08,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 285 flow [2022-12-06 06:43:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:08,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-06 06:43:08,219 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-06 06:43:08,219 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 141 flow. Second operand 5 states and 54 transitions. [2022-12-06 06:43:08,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 285 flow [2022-12-06 06:43:08,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 275 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 06:43:08,221 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 172 flow [2022-12-06 06:43:08,221 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2022-12-06 06:43:08,222 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2022-12-06 06:43:08,222 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:08,222 INFO L89 Accepts]: Start accepts. Operand has 41 places, 28 transitions, 172 flow [2022-12-06 06:43:08,222 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:08,223 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:08,223 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 28 transitions, 172 flow [2022-12-06 06:43:08,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 28 transitions, 172 flow [2022-12-06 06:43:08,228 INFO L130 PetriNetUnfolder]: 20/65 cut-off events. [2022-12-06 06:43:08,229 INFO L131 PetriNetUnfolder]: For 194/232 co-relation queries the response was YES. [2022-12-06 06:43:08,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 65 events. 20/65 cut-off events. For 194/232 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 210 event pairs, 2 based on Foata normal form. 6/66 useless extension candidates. Maximal degree in co-relation 232. Up to 37 conditions per place. [2022-12-06 06:43:08,229 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 28 transitions, 172 flow [2022-12-06 06:43:08,229 INFO L188 LiptonReduction]: Number of co-enabled transitions 134 [2022-12-06 06:43:08,304 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:43:08,305 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 83 [2022-12-06 06:43:08,305 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 184 flow [2022-12-06 06:43:08,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-12-06 06:43:08,305 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:08,305 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:08,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 06:43:08,305 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)] === [2022-12-06 06:43:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:08,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1751277144, now seen corresponding path program 1 times [2022-12-06 06:43:08,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:08,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339478120] [2022-12-06 06:43:08,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:08,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:08,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:08,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339478120] [2022-12-06 06:43:08,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339478120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:08,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:08,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:43:08,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785862151] [2022-12-06 06:43:08,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:08,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 06:43:08,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:08,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 06:43:08,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-06 06:43:08,414 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 06:43:08,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-06 06:43:08,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:08,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 06:43:08,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:08,494 INFO L130 PetriNetUnfolder]: 57/127 cut-off events. [2022-12-06 06:43:08,494 INFO L131 PetriNetUnfolder]: For 376/416 co-relation queries the response was YES. [2022-12-06 06:43:08,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 127 events. 57/127 cut-off events. For 376/416 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 399 event pairs, 12 based on Foata normal form. 28/149 useless extension candidates. Maximal degree in co-relation 467. Up to 48 conditions per place. [2022-12-06 06:43:08,496 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 23 selfloop transitions, 11 changer transitions 0/40 dead transitions. [2022-12-06 06:43:08,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 284 flow [2022-12-06 06:43:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 06:43:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 06:43:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2022-12-06 06:43:08,498 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-06 06:43:08,498 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 184 flow. Second operand 6 states and 52 transitions. [2022-12-06 06:43:08,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 284 flow [2022-12-06 06:43:08,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 259 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-06 06:43:08,500 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 186 flow [2022-12-06 06:43:08,500 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2022-12-06 06:43:08,501 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2022-12-06 06:43:08,501 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:08,501 INFO L89 Accepts]: Start accepts. Operand has 44 places, 28 transitions, 186 flow [2022-12-06 06:43:08,502 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:08,502 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:08,502 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 28 transitions, 186 flow [2022-12-06 06:43:08,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 28 transitions, 186 flow [2022-12-06 06:43:08,506 INFO L130 PetriNetUnfolder]: 11/43 cut-off events. [2022-12-06 06:43:08,506 INFO L131 PetriNetUnfolder]: For 95/101 co-relation queries the response was YES. [2022-12-06 06:43:08,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 43 events. 11/43 cut-off events. For 95/101 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2022-12-06 06:43:08,507 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 28 transitions, 186 flow [2022-12-06 06:43:08,507 INFO L188 LiptonReduction]: Number of co-enabled transitions 110 [2022-12-06 06:43:08,513 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [244] L763-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork1_#res.base_7| 0) (= |v_P2Thread1of1ForFork1_#res.offset_7| 0) (= (+ v_~__unbuffered_cnt~0_50 1) v_~__unbuffered_cnt~0_49)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_50} OutVars{P2Thread1of1ForFork1_#res.base=|v_P2Thread1of1ForFork1_#res.base_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_49, P2Thread1of1ForFork1_#res.offset=|v_P2Thread1of1ForFork1_#res.offset_7|} AuxVars[] AssignedVars[P2Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork1_#res.offset] and [241] L787-3-->L790: Formula: (= v_~main$tmp_guard0~0_16 (ite (= (ite (= 3 v_~__unbuffered_cnt~0_31) 1 0) 0) 0 1)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_17|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] [2022-12-06 06:43:08,531 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [256] L748-->P1EXIT: Formula: (and (= |v_P1Thread1of1ForFork0_#res.offset_9| 0) (= |v_P1Thread1of1ForFork0_#res.base_9| 0) (= v_~__unbuffered_cnt~0_73 (+ v_~__unbuffered_cnt~0_74 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, P1Thread1of1ForFork0_#res.offset=|v_P1Thread1of1ForFork0_#res.offset_9|, P1Thread1of1ForFork0_#res.base=|v_P1Thread1of1ForFork0_#res.base_9|} AuxVars[] AssignedVars[~__unbuffered_cnt~0, P1Thread1of1ForFork0_#res.offset, P1Thread1of1ForFork0_#res.base] and [241] L787-3-->L790: Formula: (= v_~main$tmp_guard0~0_16 (ite (= (ite (= 3 v_~__unbuffered_cnt~0_31) 1 0) 0) 0 1)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_17|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] [2022-12-06 06:43:08,547 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [260] L733-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork2_#res.base_15| 0) (= |v_P0Thread1of1ForFork2_#res.offset_15| 0) (= (+ v_~__unbuffered_cnt~0_88 1) v_~__unbuffered_cnt~0_87)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P0Thread1of1ForFork2_#res.offset=|v_P0Thread1of1ForFork2_#res.offset_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P0Thread1of1ForFork2_#res.base=|v_P0Thread1of1ForFork2_#res.base_15|} AuxVars[] AssignedVars[P0Thread1of1ForFork2_#res.offset, ~__unbuffered_cnt~0, P0Thread1of1ForFork2_#res.base] and [241] L787-3-->L790: Formula: (= v_~main$tmp_guard0~0_16 (ite (= (ite (= 3 v_~__unbuffered_cnt~0_31) 1 0) 0) 0 1)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_31, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_17|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] [2022-12-06 06:43:08,830 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 06:43:08,831 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 330 [2022-12-06 06:43:08,831 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 212 flow [2022-12-06 06:43:08,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-06 06:43:08,832 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:08,832 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:08,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 06:43:08,832 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)] === [2022-12-06 06:43:08,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash 679851711, now seen corresponding path program 1 times [2022-12-06 06:43:08,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:08,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69283932] [2022-12-06 06:43:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:08,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:08,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69283932] [2022-12-06 06:43:08,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69283932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:08,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:08,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:43:08,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64840412] [2022-12-06 06:43:08,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:08,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:08,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:08,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:08,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:08,902 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 19 [2022-12-06 06:43:08,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-06 06:43:08,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:08,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 19 [2022-12-06 06:43:08,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:08,964 INFO L130 PetriNetUnfolder]: 101/211 cut-off events. [2022-12-06 06:43:08,964 INFO L131 PetriNetUnfolder]: For 550/550 co-relation queries the response was YES. [2022-12-06 06:43:08,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 211 events. 101/211 cut-off events. For 550/550 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 753 event pairs, 12 based on Foata normal form. 3/214 useless extension candidates. Maximal degree in co-relation 832. Up to 74 conditions per place. [2022-12-06 06:43:08,966 INFO L137 encePairwiseOnDemand]: 12/19 looper letters, 24 selfloop transitions, 3 changer transitions 21/49 dead transitions. [2022-12-06 06:43:08,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 405 flow [2022-12-06 06:43:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 06:43:08,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 06:43:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2022-12-06 06:43:08,967 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4298245614035088 [2022-12-06 06:43:08,967 INFO L175 Difference]: Start difference. First operand has 42 places, 26 transitions, 212 flow. Second operand 6 states and 49 transitions. [2022-12-06 06:43:08,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 405 flow [2022-12-06 06:43:08,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 317 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-12-06 06:43:08,969 INFO L231 Difference]: Finished difference. Result has 40 places, 21 transitions, 122 flow [2022-12-06 06:43:08,969 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=40, PETRI_TRANSITIONS=21} [2022-12-06 06:43:08,970 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2022-12-06 06:43:08,970 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:08,970 INFO L89 Accepts]: Start accepts. Operand has 40 places, 21 transitions, 122 flow [2022-12-06 06:43:08,971 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:08,971 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:08,971 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 21 transitions, 122 flow [2022-12-06 06:43:08,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 21 transitions, 122 flow [2022-12-06 06:43:08,974 INFO L130 PetriNetUnfolder]: 5/24 cut-off events. [2022-12-06 06:43:08,974 INFO L131 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2022-12-06 06:43:08,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 24 events. 5/24 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2022-12-06 06:43:08,974 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 21 transitions, 122 flow [2022-12-06 06:43:08,974 INFO L188 LiptonReduction]: Number of co-enabled transitions 64 [2022-12-06 06:43:09,280 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 06:43:09,283 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 313 [2022-12-06 06:43:09,283 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 17 transitions, 134 flow [2022-12-06 06:43:09,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-06 06:43:09,283 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:09,283 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 06:43:09,284 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)] === [2022-12-06 06:43:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1072476048, now seen corresponding path program 1 times [2022-12-06 06:43:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:09,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949836079] [2022-12-06 06:43:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:09,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:09,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949836079] [2022-12-06 06:43:09,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949836079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:09,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:09,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:09,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471071195] [2022-12-06 06:43:09,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:09,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:09,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:09,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:09,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:09,406 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 06:43:09,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 17 transitions, 134 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-06 06:43:09,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:09,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 06:43:09,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:09,441 INFO L130 PetriNetUnfolder]: 21/52 cut-off events. [2022-12-06 06:43:09,442 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2022-12-06 06:43:09,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 52 events. 21/52 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 134 event pairs, 0 based on Foata normal form. 3/55 useless extension candidates. Maximal degree in co-relation 218. Up to 41 conditions per place. [2022-12-06 06:43:09,442 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-06 06:43:09,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 20 transitions, 149 flow [2022-12-06 06:43:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 06:43:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 06:43:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2022-12-06 06:43:09,443 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3382352941176471 [2022-12-06 06:43:09,443 INFO L175 Difference]: Start difference. First operand has 33 places, 17 transitions, 134 flow. Second operand 4 states and 23 transitions. [2022-12-06 06:43:09,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 20 transitions, 149 flow [2022-12-06 06:43:09,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 117 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-12-06 06:43:09,444 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2022-12-06 06:43:09,444 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2022-12-06 06:43:09,445 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-06 06:43:09,445 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:09,445 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2022-12-06 06:43:09,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:09,445 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 06:43:09,445 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:09,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 06:43:09,446 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:09,446 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 06:43:09,446 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:09,446 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-06 06:43:09,446 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:09,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-06 06:43:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 06:43:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 06:43:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 06:43:09,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 06:43:09,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 06:43:09,449 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:09,452 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:43:09,452 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:43:09,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:43:09 BasicIcfg [2022-12-06 06:43:09,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:43:09,455 INFO L158 Benchmark]: Toolchain (without parser) took 6242.59ms. Allocated memory was 213.9MB in the beginning and 314.6MB in the end (delta: 100.7MB). Free memory was 188.5MB in the beginning and 140.0MB in the end (delta: 48.5MB). Peak memory consumption was 150.2MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,455 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory was 190.3MB in the beginning and 190.3MB in the end (delta: 88.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:43:09,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.20ms. Allocated memory is still 213.9MB. Free memory was 188.0MB in the beginning and 164.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.35ms. Allocated memory is still 213.9MB. Free memory was 164.5MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,455 INFO L158 Benchmark]: Boogie Preprocessor took 32.68ms. Allocated memory is still 213.9MB. Free memory was 162.4MB in the beginning and 161.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,455 INFO L158 Benchmark]: RCFGBuilder took 363.40ms. Allocated memory is still 213.9MB. Free memory was 161.2MB in the beginning and 147.8MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,456 INFO L158 Benchmark]: TraceAbstraction took 5350.90ms. Allocated memory was 213.9MB in the beginning and 314.6MB in the end (delta: 100.7MB). Free memory was 147.2MB in the beginning and 140.0MB in the end (delta: 7.2MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. [2022-12-06 06:43:09,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory was 190.3MB in the beginning and 190.3MB in the end (delta: 88.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 440.20ms. Allocated memory is still 213.9MB. Free memory was 188.0MB in the beginning and 164.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.35ms. Allocated memory is still 213.9MB. Free memory was 164.5MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.68ms. Allocated memory is still 213.9MB. Free memory was 162.4MB in the beginning and 161.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 363.40ms. Allocated memory is still 213.9MB. Free memory was 161.2MB in the beginning and 147.8MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5350.90ms. Allocated memory was 213.9MB in the beginning and 314.6MB in the end (delta: 100.7MB). Free memory was 147.2MB in the beginning and 140.0MB in the end (delta: 7.2MB). Peak memory consumption was 108.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 80 PlacesBefore, 27 PlacesAfterwards, 71 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 825, independent: 788, independent conditional: 788, independent unconditional: 0, dependent: 37, dependent conditional: 37, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 825, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 825, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 825, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 690, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 690, independent: 659, independent conditional: 0, independent unconditional: 659, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 825, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 690, unknown conditional: 0, unknown unconditional: 690] , Statistics on independence cache: Total cache size (in pairs): 1020, Positive cache size: 994, Positive conditional cache size: 0, Positive unconditional cache size: 994, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 27 PlacesBefore, 27 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, independent: 61, independent conditional: 61, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 72, independent: 61, independent conditional: 3, independent unconditional: 58, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 72, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 53, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 53, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 53, unknown conditional: 0, unknown unconditional: 53] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, independent: 106, independent conditional: 106, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 120, independent: 106, independent conditional: 33, independent unconditional: 73, dependent: 14, dependent conditional: 7, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 122, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 122, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 122, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 42, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 35 PlacesBefore, 35 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 111, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 32, independent unconditional: 79, dependent: 15, dependent conditional: 7, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 128, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 128, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 41, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 50, independent conditional: 50, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, independent: 50, independent conditional: 5, independent unconditional: 45, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 62, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 37 PlacesBefore, 37 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 121, independent: 107, independent conditional: 58, independent unconditional: 49, dependent: 14, dependent conditional: 8, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, independent: 107, independent conditional: 6, independent unconditional: 101, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 107, independent conditional: 6, independent unconditional: 101, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, independent: 102, independent conditional: 6, independent unconditional: 96, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 60, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 41 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 89, independent: 75, independent conditional: 75, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 89, independent: 75, independent conditional: 41, independent unconditional: 34, dependent: 14, dependent conditional: 8, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 93, independent: 75, independent conditional: 12, independent unconditional: 63, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93, independent: 75, independent conditional: 12, independent unconditional: 63, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 93, independent: 75, independent conditional: 12, independent unconditional: 63, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 41, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 44 PlacesBefore, 42 PlacesAfterwards, 28 TransitionsBefore, 26 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, independent: 64, independent conditional: 64, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 76, independent: 64, independent conditional: 30, independent unconditional: 34, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, independent: 64, independent conditional: 14, independent unconditional: 50, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, independent: 64, independent conditional: 14, independent unconditional: 50, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, independent: 63, independent conditional: 13, independent unconditional: 50, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 92, Positive conditional cache size: 1, Positive unconditional cache size: 91, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 20, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 37 PlacesBefore, 33 PlacesAfterwards, 21 TransitionsBefore, 17 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 28, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 22, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28, independent: 28, independent conditional: 5, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28, independent: 28, independent conditional: 5, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, independent: 26, independent conditional: 5, independent unconditional: 21, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 136, Positive conditional cache size: 1, Positive unconditional cache size: 135, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 136, Positive conditional cache size: 1, Positive unconditional cache size: 135, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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, 109 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: 5.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 235 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 11 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=7, InterpolantAutomatonStates: 40, 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, 1.0s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 350 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! [2022-12-06 06:43:09,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...