/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:53:03,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:53:03,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:53:03,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:53:03,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:53:03,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:53:03,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:53:03,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:53:03,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:53:03,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:53:03,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:53:03,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:53:03,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:53:03,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:53:03,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:53:03,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:53:03,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:53:03,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:53:03,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:53:03,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:53:03,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:53:03,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:53:03,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:53:03,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:53:03,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:53:03,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:53:03,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:53:03,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:53:03,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:53:03,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 22:53:03,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 22:53:03,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 22:53:03,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 22:53:03,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 22:53:03,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 22:53:03,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 22:53:03,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 22:53:03,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 22:53:03,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:53:03,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:53:03,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:53:03,277 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-RepeatedSemanticLbe.epf [2022-12-05 22:53:03,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:53:03,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:53:03,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:53:03,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:53:03,302 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:53:03,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:53:03,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:53:03,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:53:03,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:53:03,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:53:03,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:53:03,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:53:03,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:53:03,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:53:03,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:53:03,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:53:03,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:53:03,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 22:53:03,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:53:03,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:53:03,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:53:03,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:53:03,592 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:53:03,592 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:53:03,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2022-12-05 22:53:04,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:53:05,005 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:53:05,006 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2022-12-05 22:53:05,029 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b99f2b90/73cdeb0b98e64906952fb8fcc8ec6bb9/FLAGc7f5e8e3b [2022-12-05 22:53:05,044 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b99f2b90/73cdeb0b98e64906952fb8fcc8ec6bb9 [2022-12-05 22:53:05,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:53:05,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:53:05,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:53:05,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:53:05,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:53:05,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11285acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05, skipping insertion in model container [2022-12-05 22:53:05,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:53:05,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:53:05,360 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 22:53:05,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2022-12-05 22:53:05,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,572 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2022-12-05 22:53:05,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:53:05,584 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:53:05,617 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-05 22:53:05,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2022-12-05 22:53:05,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2022-12-05 22:53:05,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:53:05,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:53:05,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:53:05,719 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:53:05,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05 WrapperNode [2022-12-05 22:53:05,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:53:05,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:53:05,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:53:05,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:53:05,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,773 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-12-05 22:53:05,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:53:05,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:53:05,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:53:05,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:53:05,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:53:05,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:53:05,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:53:05,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:53:05,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (1/1) ... [2022-12-05 22:53:05,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:53:05,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:53:05,833 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) [2022-12-05 22:53:05,839 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 [2022-12-05 22:53:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:53:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-05 22:53:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-05 22:53:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-05 22:53:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-05 22:53:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:53:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 22:53:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:53:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:53:05,866 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:53:06,015 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:53:06,016 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:53:06,173 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:53:06,178 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:53:06,179 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 22:53:06,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:53:06 BoogieIcfgContainer [2022-12-05 22:53:06,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:53:06,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:53:06,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:53:06,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:53:06,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:53:05" (1/3) ... [2022-12-05 22:53:06,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b34bef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:53:06, skipping insertion in model container [2022-12-05 22:53:06,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:53:05" (2/3) ... [2022-12-05 22:53:06,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b34bef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:53:06, skipping insertion in model container [2022-12-05 22:53:06,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:53:06" (3/3) ... [2022-12-05 22:53:06,188 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2022-12-05 22:53:06,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:53:06,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 22:53:06,205 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:53:06,284 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 22:53:06,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 172 flow [2022-12-05 22:53:06,357 INFO L130 PetriNetUnfolder]: 6/76 cut-off events. [2022-12-05 22:53:06,357 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:53:06,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 6/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-05 22:53:06,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 78 transitions, 172 flow [2022-12-05 22:53:06,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 143 flow [2022-12-05 22:53:06,368 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:53:06,380 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 67 transitions, 143 flow [2022-12-05 22:53:06,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 143 flow [2022-12-05 22:53:06,397 INFO L130 PetriNetUnfolder]: 6/67 cut-off events. [2022-12-05 22:53:06,397 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 22:53:06,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 67 events. 6/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-05 22:53:06,400 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 67 transitions, 143 flow [2022-12-05 22:53:06,400 INFO L188 LiptonReduction]: Number of co-enabled transitions 1188 [2022-12-05 22:53:07,744 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-05 22:53:07,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:53:07,758 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;@5b75be4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:53:07,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 22:53:07,762 INFO L130 PetriNetUnfolder]: 2/18 cut-off events. [2022-12-05 22:53:07,762 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 22:53:07,763 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:53:07,763 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:53:07,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:53:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:53:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1997405725, now seen corresponding path program 1 times [2022-12-05 22:53:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:53:07,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007293580] [2022-12-05 22:53:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:53:07,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:53:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:53:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:53:07,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:53:07,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007293580] [2022-12-05 22:53:07,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007293580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:53:07,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:53:07,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:53:07,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593693799] [2022-12-05 22:53:07,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:53:07,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:53:07,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:53:07,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:53:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:53:07,965 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-05 22:53:07,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-05 22:53:07,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:53:07,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-05 22:53:07,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:53:08,054 INFO L130 PetriNetUnfolder]: 155/342 cut-off events. [2022-12-05 22:53:08,054 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-12-05 22:53:08,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 342 events. 155/342 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1695 event pairs, 67 based on Foata normal form. 16/291 useless extension candidates. Maximal degree in co-relation 568. Up to 166 conditions per place. [2022-12-05 22:53:08,057 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 23 selfloop transitions, 5 changer transitions 1/37 dead transitions. [2022-12-05 22:53:08,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 144 flow [2022-12-05 22:53:08,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:53:08,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:53:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-12-05 22:53:08,065 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2022-12-05 22:53:08,066 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 67 flow. Second operand 3 states and 57 transitions. [2022-12-05 22:53:08,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 144 flow [2022-12-05 22:53:08,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 22:53:08,070 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 88 flow [2022-12-05 22:53:08,071 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2022-12-05 22:53:08,073 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-05 22:53:08,073 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:53:08,074 INFO L89 Accepts]: Start accepts. Operand has 33 places, 29 transitions, 88 flow [2022-12-05 22:53:08,076 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:53:08,076 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:53:08,076 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 29 transitions, 88 flow [2022-12-05 22:53:08,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 88 flow [2022-12-05 22:53:08,080 INFO L130 PetriNetUnfolder]: 2/46 cut-off events. [2022-12-05 22:53:08,081 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:53:08,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 46 events. 2/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 156 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 66. Up to 9 conditions per place. [2022-12-05 22:53:08,081 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 29 transitions, 88 flow [2022-12-05 22:53:08,081 INFO L188 LiptonReduction]: Number of co-enabled transitions 296 [2022-12-05 22:53:08,104 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-05 22:53:08,106 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 33 [2022-12-05 22:53:08,106 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 88 flow [2022-12-05 22:53:08,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-05 22:53:08,106 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:53:08,106 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:53:08,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:53:08,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:53:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:53:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1440030316, now seen corresponding path program 1 times [2022-12-05 22:53:08,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:53:08,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294606539] [2022-12-05 22:53:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:53:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:53:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:53:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:53:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:53:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294606539] [2022-12-05 22:53:08,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294606539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:53:08,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:53:08,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:53:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997364803] [2022-12-05 22:53:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:53:08,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:53:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:53:08,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:53:08,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:53:08,157 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-05 22:53:08,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-05 22:53:08,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:53:08,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-05 22:53:08,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:53:08,202 INFO L130 PetriNetUnfolder]: 134/305 cut-off events. [2022-12-05 22:53:08,202 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-12-05 22:53:08,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 305 events. 134/305 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1472 event pairs, 69 based on Foata normal form. 16/279 useless extension candidates. Maximal degree in co-relation 287. Up to 163 conditions per place. [2022-12-05 22:53:08,204 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2022-12-05 22:53:08,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 159 flow [2022-12-05 22:53:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:53:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:53:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-05 22:53:08,205 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2022-12-05 22:53:08,205 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 88 flow. Second operand 3 states and 53 transitions. [2022-12-05 22:53:08,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 159 flow [2022-12-05 22:53:08,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 22:53:08,207 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,207 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2022-12-05 22:53:08,208 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-12-05 22:53:08,208 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:53:08,208 INFO L89 Accepts]: Start accepts. Operand has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,209 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:53:08,209 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:53:08,209 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,212 INFO L130 PetriNetUnfolder]: 2/45 cut-off events. [2022-12-05 22:53:08,212 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 22:53:08,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 45 events. 2/45 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 140 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 71. Up to 9 conditions per place. [2022-12-05 22:53:08,213 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,213 INFO L188 LiptonReduction]: Number of co-enabled transitions 278 [2022-12-05 22:53:08,217 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:53:08,218 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-05 22:53:08,218 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 92 flow [2022-12-05 22:53:08,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-05 22:53:08,219 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:53:08,219 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:53:08,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:53:08,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:53:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:53:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1363752365, now seen corresponding path program 1 times [2022-12-05 22:53:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:53:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502655042] [2022-12-05 22:53:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:53:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:53:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:53:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:53:08,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:53:08,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502655042] [2022-12-05 22:53:08,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502655042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:53:08,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:53:08,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:53:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545607478] [2022-12-05 22:53:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:53:08,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 22:53:08,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:53:08,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 22:53:08,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 22:53:08,321 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 27 [2022-12-05 22:53:08,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-05 22:53:08,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:53:08,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 27 [2022-12-05 22:53:08,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:53:08,521 INFO L130 PetriNetUnfolder]: 400/729 cut-off events. [2022-12-05 22:53:08,521 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-12-05 22:53:08,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 729 events. 400/729 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3383 event pairs, 55 based on Foata normal form. 30/709 useless extension candidates. Maximal degree in co-relation 1394. Up to 333 conditions per place. [2022-12-05 22:53:08,523 INFO L137 encePairwiseOnDemand]: 17/27 looper letters, 46 selfloop transitions, 10 changer transitions 37/94 dead transitions. [2022-12-05 22:53:08,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 94 transitions, 441 flow [2022-12-05 22:53:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 22:53:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 22:53:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 109 transitions. [2022-12-05 22:53:08,527 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.40370370370370373 [2022-12-05 22:53:08,527 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 92 flow. Second operand 10 states and 109 transitions. [2022-12-05 22:53:08,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 94 transitions, 441 flow [2022-12-05 22:53:08,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 94 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:53:08,532 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 178 flow [2022-12-05 22:53:08,532 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=178, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2022-12-05 22:53:08,533 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 19 predicate places. [2022-12-05 22:53:08,533 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:53:08,533 INFO L89 Accepts]: Start accepts. Operand has 51 places, 37 transitions, 178 flow [2022-12-05 22:53:08,535 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:53:08,535 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:53:08,535 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 37 transitions, 178 flow [2022-12-05 22:53:08,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 178 flow [2022-12-05 22:53:08,541 INFO L130 PetriNetUnfolder]: 15/91 cut-off events. [2022-12-05 22:53:08,542 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-12-05 22:53:08,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 91 events. 15/91 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2022-12-05 22:53:08,542 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 178 flow [2022-12-05 22:53:08,543 INFO L188 LiptonReduction]: Number of co-enabled transitions 260 [2022-12-05 22:53:08,556 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [185] L737-->L740: Formula: (= v_~flag1~0_1 v_thr2Thread1of1ForFork1_~f12~0_1) InVars {~flag1~0=v_~flag1~0_1} OutVars{~flag1~0=v_~flag1~0_1, thr2Thread1of1ForFork1_~f12~0=v_thr2Thread1of1ForFork1_~f12~0_1} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0] and [202] L706-->L709: Formula: (= v_~turn~0_4 1) InVars {} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[~turn~0] [2022-12-05 22:53:08,616 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-05 22:53:08,617 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 84 [2022-12-05 22:53:08,617 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 178 flow [2022-12-05 22:53:08,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-05 22:53:08,617 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:53:08,617 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:53:08,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 22:53:08,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:53:08,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:53:08,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1098256173, now seen corresponding path program 2 times [2022-12-05 22:53:08,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:53:08,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996495544] [2022-12-05 22:53:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:53:08,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:53:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:53:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:53:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:53:08,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996495544] [2022-12-05 22:53:08,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996495544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:53:08,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:53:08,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:53:08,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017393705] [2022-12-05 22:53:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:53:08,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 22:53:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:53:08,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 22:53:08,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 22:53:08,730 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 28 [2022-12-05 22:53:08,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-05 22:53:08,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:53:08,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 28 [2022-12-05 22:53:08,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:53:08,877 INFO L130 PetriNetUnfolder]: 298/511 cut-off events. [2022-12-05 22:53:08,878 INFO L131 PetriNetUnfolder]: For 736/736 co-relation queries the response was YES. [2022-12-05 22:53:08,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1609 conditions, 511 events. 298/511 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2007 event pairs, 32 based on Foata normal form. 32/529 useless extension candidates. Maximal degree in co-relation 1214. Up to 182 conditions per place. [2022-12-05 22:53:08,880 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2022-12-05 22:53:08,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 90 transitions, 665 flow [2022-12-05 22:53:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 22:53:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 22:53:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2022-12-05 22:53:08,882 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-05 22:53:08,882 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 178 flow. Second operand 9 states and 90 transitions. [2022-12-05 22:53:08,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 90 transitions, 665 flow [2022-12-05 22:53:08,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 90 transitions, 541 flow, removed 50 selfloop flow, removed 7 redundant places. [2022-12-05 22:53:08,887 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2022-12-05 22:53:08,887 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2022-12-05 22:53:08,888 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2022-12-05 22:53:08,888 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:53:08,888 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 0 transitions, 0 flow [2022-12-05 22:53:08,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-05 22:53:08,888 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 22:53:08,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:53:08,888 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. [2022-12-05 22:53:08,889 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-05 22:53:08,889 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-05 22:53:08,889 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:53:08,890 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-05 22:53:08,890 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-05 22:53:08,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-05 22:53:08,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 22:53:08,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:53:08,893 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-05 22:53:08,896 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:53:08,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:53:08,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:53:08 BasicIcfg [2022-12-05 22:53:08,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:53:08,899 INFO L158 Benchmark]: Toolchain (without parser) took 3842.48ms. Allocated memory was 204.5MB in the beginning and 305.1MB in the end (delta: 100.7MB). Free memory was 179.0MB in the beginning and 183.1MB in the end (delta: -4.1MB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,899 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 181.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:53:08,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.88ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 155.7MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.39ms. Allocated memory is still 204.5MB. Free memory was 155.7MB in the beginning and 153.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,900 INFO L158 Benchmark]: Boogie Preprocessor took 28.18ms. Allocated memory is still 204.5MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,900 INFO L158 Benchmark]: RCFGBuilder took 377.71ms. Allocated memory is still 204.5MB. Free memory was 152.5MB in the beginning and 139.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,900 INFO L158 Benchmark]: TraceAbstraction took 2716.50ms. Allocated memory was 204.5MB in the beginning and 305.1MB in the end (delta: 100.7MB). Free memory was 138.4MB in the beginning and 183.1MB in the end (delta: -44.7MB). Peak memory consumption was 56.0MB. Max. memory is 8.0GB. [2022-12-05 22:53:08,901 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 204.5MB. Free memory is still 181.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 652.88ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 155.7MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.39ms. Allocated memory is still 204.5MB. Free memory was 155.7MB in the beginning and 153.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.18ms. Allocated memory is still 204.5MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 377.71ms. Allocated memory is still 204.5MB. Free memory was 152.5MB in the beginning and 139.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2716.50ms. Allocated memory was 204.5MB in the beginning and 305.1MB in the end (delta: 100.7MB). Free memory was 138.4MB in the beginning and 183.1MB in the end (delta: -44.7MB). Peak memory consumption was 56.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 68 PlacesBefore, 32 PlacesAfterwards, 67 TransitionsBefore, 29 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 19 ConcurrentYvCompositions, 2 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 935, independent unconditional: 0, dependent: 77, dependent conditional: 77, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 750, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 750, independent: 696, independent conditional: 0, independent unconditional: 696, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1012, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 750, unknown conditional: 0, unknown unconditional: 750] , Statistics on independence cache: Total cache size (in pairs): 1128, Positive cache size: 1090, Positive conditional cache size: 0, Positive unconditional cache size: 1090, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, 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, 33 PlacesBefore, 34 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 147, independent unconditional: 0, dependent: 41, dependent conditional: 41, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 83, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 83, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 188, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 75, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 34, unknown conditional: 0, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 0.1s, 48 PlacesBefore, 46 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 123, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 49, independent unconditional: 74, dependent: 35, dependent conditional: 13, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 158, independent: 123, independent conditional: 30, independent unconditional: 93, dependent: 35, dependent conditional: 2, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 30, independent unconditional: 93, dependent: 35, dependent conditional: 2, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 20, independent conditional: 12, independent unconditional: 8, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, independent: 103, independent conditional: 18, independent unconditional: 85, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 24, unknown conditional: 14, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 119, Positive conditional cache size: 12, Positive unconditional cache size: 107, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 30, 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): 144, Positive cache size: 119, Positive conditional cache size: 12, Positive unconditional cache size: 107, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 29 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=3, InterpolantAutomatonStates: 25, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 22:53:08,915 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...