/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:27:38,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:27:38,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:27:38,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:27:38,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:27:38,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:27:38,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:27:38,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:27:38,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:27:38,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:27:38,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:27:38,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:27:38,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:27:38,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:27:38,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:27:38,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:27:38,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:27:38,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:27:38,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:27:38,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:27:38,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:27:38,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:27:38,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:27:38,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:27:38,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:27:38,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:27:38,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:27:38,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:27:38,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:27:38,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:27:38,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:27:38,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:27:38,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:27:38,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:27:38,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:27:38,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:27:38,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:27:38,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:27:38,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:27:38,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:27:38,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:27:38,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:27:38,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:27:38,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:27:38,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:27:38,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:27:38,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:27:38,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:27:38,381 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:27:38,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:27:38,381 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:27:38,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:27:38,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:27:38,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:27:38,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:27:38,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:27:38,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:27:38,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:27:38,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:27:38,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:27:38,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:27:38,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:27:38,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:27:38,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:27:38,662 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:27:38,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:39,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:27:39,947 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:27:39,948 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:39,969 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76a688d1/b794f1b9c77c49458ce7635661b7443e/FLAG82d315945 [2022-12-05 20:27:39,980 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76a688d1/b794f1b9c77c49458ce7635661b7443e [2022-12-05 20:27:39,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:27:39,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:27:39,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:27:39,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:27:39,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:27:39,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:27:39" (1/1) ... [2022-12-05 20:27:39,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff2a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:39, skipping insertion in model container [2022-12-05 20:27:39,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:27:39" (1/1) ... [2022-12-05 20:27:39,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:27:40,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:27:40,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:27:40,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:27:40,344 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:27:40,356 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:27:40,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:27:40,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:27:40,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:27:40,426 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:27:40,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40 WrapperNode [2022-12-05 20:27:40,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:27:40,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:27:40,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:27:40,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:27:40,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,474 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-05 20:27:40,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:27:40,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:27:40,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:27:40,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:27:40,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,500 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:27:40,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:27:40,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:27:40,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:27:40,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (1/1) ... [2022-12-05 20:27:40,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:27:40,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:27:40,549 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 20:27:40,553 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 20:27:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:27:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:27:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:27:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:27:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:27:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 20:27:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 20:27:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 20:27:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 20:27:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 20:27:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 20:27:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:27:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:27:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:27:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:27:40,582 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 20:27:40,734 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:27:40,735 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:27:40,832 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:27:40,836 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:27:40,836 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:27:40,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:27:40 BoogieIcfgContainer [2022-12-05 20:27:40,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:27:40,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:27:40,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:27:40,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:27:40,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:27:39" (1/3) ... [2022-12-05 20:27:40,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4344c1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:27:40, skipping insertion in model container [2022-12-05 20:27:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:27:40" (2/3) ... [2022-12-05 20:27:40,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4344c1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:27:40, skipping insertion in model container [2022-12-05 20:27:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:27:40" (3/3) ... [2022-12-05 20:27:40,843 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:27:40,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:27:40,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:27:40,855 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:27:40,896 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:27:40,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-05 20:27:41,000 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-05 20:27:41,001 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:41,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-05 20:27:41,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-05 20:27:41,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-05 20:27:41,011 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:27:41,030 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-05 20:27:41,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-05 20:27:41,061 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-05 20:27:41,062 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:41,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-05 20:27:41,065 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-05 20:27:41,065 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-05 20:27:43,073 INFO L203 LiptonReduction]: Total number of compositions: 53 [2022-12-05 20:27:43,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:27:43,102 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47931d29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:27:43,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:27:43,111 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-05 20:27:43,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:43,112 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:43,113 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:43,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:43,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash 228144142, now seen corresponding path program 1 times [2022-12-05 20:27:43,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:43,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135448144] [2022-12-05 20:27:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:43,245 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 20:27:43,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:43,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135448144] [2022-12-05 20:27:43,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135448144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:43,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:43,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:27:43,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537585126] [2022-12-05 20:27:43,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:43,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:27:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:43,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:27:43,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:27:43,267 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:27:43,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 20:27:43,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:43,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:27:43,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:43,315 INFO L130 PetriNetUnfolder]: 164/286 cut-off events. [2022-12-05 20:27:43,316 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 20:27:43,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 286 events. 164/286 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1164 event pairs, 164 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 576. Up to 271 conditions per place. [2022-12-05 20:27:43,319 INFO L137 encePairwiseOnDemand]: 17/18 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-05 20:27:43,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 71 flow [2022-12-05 20:27:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:27:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:27:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 21 transitions. [2022-12-05 20:27:43,327 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-05 20:27:43,328 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 21 transitions. [2022-12-05 20:27:43,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 71 flow [2022-12-05 20:27:43,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:27:43,331 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-05 20:27:43,332 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-05 20:27:43,334 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-05 20:27:43,334 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 40 flow [2022-12-05 20:27:43,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 20:27:43,335 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:43,335 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:43,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:27:43,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:43,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1517465909, now seen corresponding path program 1 times [2022-12-05 20:27:43,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:43,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200252185] [2022-12-05 20:27:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:43,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:43,524 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 20:27:43,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:43,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200252185] [2022-12-05 20:27:43,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200252185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:43,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:43,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:27:43,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417109985] [2022-12-05 20:27:43,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:43,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:27:43,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:27:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:27:43,526 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-05 20:27:43,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 40 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 20:27:43,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:43,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-05 20:27:43,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:43,632 INFO L130 PetriNetUnfolder]: 551/886 cut-off events. [2022-12-05 20:27:43,632 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:27:43,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 886 events. 551/886 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3769 event pairs, 188 based on Foata normal form. 42/928 useless extension candidates. Maximal degree in co-relation 1822. Up to 543 conditions per place. [2022-12-05 20:27:43,637 INFO L137 encePairwiseOnDemand]: 11/18 looper letters, 23 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2022-12-05 20:27:43,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 124 flow [2022-12-05 20:27:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:27:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:27:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-05 20:27:43,638 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-05 20:27:43,638 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states and 30 transitions. [2022-12-05 20:27:43,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 124 flow [2022-12-05 20:27:43,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:27:43,640 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 86 flow [2022-12-05 20:27:43,640 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2022-12-05 20:27:43,641 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-05 20:27:43,641 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 86 flow [2022-12-05 20:27:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 20:27:43,641 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:43,641 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:43,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:27:43,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash 203196149, now seen corresponding path program 1 times [2022-12-05 20:27:43,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:43,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944841136] [2022-12-05 20:27:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:43,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:43,749 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 20:27:43,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944841136] [2022-12-05 20:27:43,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944841136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:43,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:43,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:27:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004563087] [2022-12-05 20:27:43,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:43,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:43,751 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-05 20:27:43,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 20:27:43,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:43,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-05 20:27:43,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:43,838 INFO L130 PetriNetUnfolder]: 556/955 cut-off events. [2022-12-05 20:27:43,838 INFO L131 PetriNetUnfolder]: For 351/351 co-relation queries the response was YES. [2022-12-05 20:27:43,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 955 events. 556/955 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4559 event pairs, 111 based on Foata normal form. 52/1007 useless extension candidates. Maximal degree in co-relation 2459. Up to 426 conditions per place. [2022-12-05 20:27:43,844 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 27 selfloop transitions, 4 changer transitions 6/39 dead transitions. [2022-12-05 20:27:43,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 216 flow [2022-12-05 20:27:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:27:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:27:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-05 20:27:43,846 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2022-12-05 20:27:43,846 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 86 flow. Second operand 4 states and 37 transitions. [2022-12-05 20:27:43,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 216 flow [2022-12-05 20:27:43,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:27:43,852 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 87 flow [2022-12-05 20:27:43,852 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2022-12-05 20:27:43,853 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-05 20:27:43,853 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 87 flow [2022-12-05 20:27:43,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 20:27:43,853 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:43,855 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:43,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:27:43,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2004125849, now seen corresponding path program 1 times [2022-12-05 20:27:43,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:43,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113462500] [2022-12-05 20:27:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:43,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,022 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 20:27:44,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113462500] [2022-12-05 20:27:44,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113462500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:44,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689701548] [2022-12-05 20:27:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:44,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:44,024 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-05 20:27:44,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 87 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-05 20:27:44,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,107 INFO L130 PetriNetUnfolder]: 347/580 cut-off events. [2022-12-05 20:27:44,107 INFO L131 PetriNetUnfolder]: For 298/298 co-relation queries the response was YES. [2022-12-05 20:27:44,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 580 events. 347/580 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2262 event pairs, 95 based on Foata normal form. 12/592 useless extension candidates. Maximal degree in co-relation 1570. Up to 313 conditions per place. [2022-12-05 20:27:44,110 INFO L137 encePairwiseOnDemand]: 11/18 looper letters, 32 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2022-12-05 20:27:44,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 218 flow [2022-12-05 20:27:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:27:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:27:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-05 20:27:44,111 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2022-12-05 20:27:44,111 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 87 flow. Second operand 4 states and 37 transitions. [2022-12-05 20:27:44,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 218 flow [2022-12-05 20:27:44,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 208 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 20:27:44,113 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 128 flow [2022-12-05 20:27:44,113 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2022-12-05 20:27:44,115 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2022-12-05 20:27:44,115 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 128 flow [2022-12-05 20:27:44,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,115 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,115 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:27:44,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1998331339, now seen corresponding path program 1 times [2022-12-05 20:27:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114474224] [2022-12-05 20:27:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,221 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 20:27:44,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114474224] [2022-12-05 20:27:44,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114474224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:27:44,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114554602] [2022-12-05 20:27:44,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:44,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:44,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:44,223 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:27:44,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:27:44,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,308 INFO L130 PetriNetUnfolder]: 205/410 cut-off events. [2022-12-05 20:27:44,308 INFO L131 PetriNetUnfolder]: For 628/644 co-relation queries the response was YES. [2022-12-05 20:27:44,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 410 events. 205/410 cut-off events. For 628/644 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2039 event pairs, 56 based on Foata normal form. 30/420 useless extension candidates. Maximal degree in co-relation 1151. Up to 233 conditions per place. [2022-12-05 20:27:44,310 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 35 selfloop transitions, 8 changer transitions 2/53 dead transitions. [2022-12-05 20:27:44,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 53 transitions, 358 flow [2022-12-05 20:27:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:27:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:27:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-05 20:27:44,314 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-05 20:27:44,314 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 128 flow. Second operand 5 states and 54 transitions. [2022-12-05 20:27:44,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 53 transitions, 358 flow [2022-12-05 20:27:44,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 53 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:27:44,317 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 185 flow [2022-12-05 20:27:44,317 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-05 20:27:44,319 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2022-12-05 20:27:44,319 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 185 flow [2022-12-05 20:27:44,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,319 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,319 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:27:44,320 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1805858453, now seen corresponding path program 1 times [2022-12-05 20:27:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91080641] [2022-12-05 20:27:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,400 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 20:27:44,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91080641] [2022-12-05 20:27:44,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91080641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:44,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255971314] [2022-12-05 20:27:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:27:44,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:27:44,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:27:44,402 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:27:44,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:27:44,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,478 INFO L130 PetriNetUnfolder]: 181/384 cut-off events. [2022-12-05 20:27:44,479 INFO L131 PetriNetUnfolder]: For 952/1074 co-relation queries the response was YES. [2022-12-05 20:27:44,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 384 events. 181/384 cut-off events. For 952/1074 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1972 event pairs, 27 based on Foata normal form. 93/461 useless extension candidates. Maximal degree in co-relation 1457. Up to 192 conditions per place. [2022-12-05 20:27:44,481 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 37 selfloop transitions, 15 changer transitions 8/68 dead transitions. [2022-12-05 20:27:44,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 68 transitions, 522 flow [2022-12-05 20:27:44,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:27:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:27:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 73 transitions. [2022-12-05 20:27:44,482 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5793650793650794 [2022-12-05 20:27:44,482 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 185 flow. Second operand 7 states and 73 transitions. [2022-12-05 20:27:44,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 68 transitions, 522 flow [2022-12-05 20:27:44,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 68 transitions, 518 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:27:44,485 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 280 flow [2022-12-05 20:27:44,485 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=280, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2022-12-05 20:27:44,485 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2022-12-05 20:27:44,485 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 280 flow [2022-12-05 20:27:44,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,485 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,486 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:27:44,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,486 INFO L85 PathProgramCache]: Analyzing trace with hash -557175347, now seen corresponding path program 1 times [2022-12-05 20:27:44,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311541296] [2022-12-05 20:27:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,558 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 20:27:44,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311541296] [2022-12-05 20:27:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311541296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:27:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320206899] [2022-12-05 20:27:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:27:44,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:27:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:27:44,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-05 20:27:44,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-05 20:27:44,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,646 INFO L130 PetriNetUnfolder]: 166/359 cut-off events. [2022-12-05 20:27:44,646 INFO L131 PetriNetUnfolder]: For 1428/1566 co-relation queries the response was YES. [2022-12-05 20:27:44,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 359 events. 166/359 cut-off events. For 1428/1566 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1877 event pairs, 23 based on Foata normal form. 82/426 useless extension candidates. Maximal degree in co-relation 1608. Up to 176 conditions per place. [2022-12-05 20:27:44,649 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 33 selfloop transitions, 19 changer transitions 9/69 dead transitions. [2022-12-05 20:27:44,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 69 transitions, 591 flow [2022-12-05 20:27:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 20:27:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 20:27:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 80 transitions. [2022-12-05 20:27:44,650 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49382716049382713 [2022-12-05 20:27:44,650 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 280 flow. Second operand 9 states and 80 transitions. [2022-12-05 20:27:44,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 69 transitions, 591 flow [2022-12-05 20:27:44,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 556 flow, removed 13 selfloop flow, removed 2 redundant places. [2022-12-05 20:27:44,655 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 306 flow [2022-12-05 20:27:44,656 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=306, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2022-12-05 20:27:44,656 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 31 predicate places. [2022-12-05 20:27:44,656 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 306 flow [2022-12-05 20:27:44,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:27:44,656 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,656 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:27:44,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,657 INFO L85 PathProgramCache]: Analyzing trace with hash -26116882, now seen corresponding path program 1 times [2022-12-05 20:27:44,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622964578] [2022-12-05 20:27:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,728 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 20:27:44,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622964578] [2022-12-05 20:27:44,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622964578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:27:44,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533627248] [2022-12-05 20:27:44,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:27:44,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:27:44,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:27:44,729 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-05 20:27:44,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 306 flow. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 20:27:44,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-05 20:27:44,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,844 INFO L130 PetriNetUnfolder]: 339/639 cut-off events. [2022-12-05 20:27:44,844 INFO L131 PetriNetUnfolder]: For 2208/2208 co-relation queries the response was YES. [2022-12-05 20:27:44,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2961 conditions, 639 events. 339/639 cut-off events. For 2208/2208 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3100 event pairs, 36 based on Foata normal form. 1/640 useless extension candidates. Maximal degree in co-relation 2942. Up to 322 conditions per place. [2022-12-05 20:27:44,847 INFO L137 encePairwiseOnDemand]: 11/18 looper letters, 31 selfloop transitions, 9 changer transitions 48/88 dead transitions. [2022-12-05 20:27:44,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 88 transitions, 846 flow [2022-12-05 20:27:44,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:27:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:27:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2022-12-05 20:27:44,848 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 20:27:44,848 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 306 flow. Second operand 5 states and 45 transitions. [2022-12-05 20:27:44,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 88 transitions, 846 flow [2022-12-05 20:27:44,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 88 transitions, 707 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-12-05 20:27:44,854 INFO L231 Difference]: Finished difference. Result has 55 places, 30 transitions, 207 flow [2022-12-05 20:27:44,855 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=55, PETRI_TRANSITIONS=30} [2022-12-05 20:27:44,855 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 28 predicate places. [2022-12-05 20:27:44,855 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 30 transitions, 207 flow [2022-12-05 20:27:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 20:27:44,855 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,855 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:27:44,856 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,856 INFO L85 PathProgramCache]: Analyzing trace with hash -552582922, now seen corresponding path program 2 times [2022-12-05 20:27:44,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357611929] [2022-12-05 20:27:44,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:44,922 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 20:27:44,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:44,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357611929] [2022-12-05 20:27:44,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357611929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:44,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:44,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:27:44,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970096440] [2022-12-05 20:27:44,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:44,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:27:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:27:44,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:27:44,923 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-05 20:27:44,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 30 transitions, 207 flow. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 20:27:44,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:44,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-05 20:27:44,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:44,981 INFO L130 PetriNetUnfolder]: 90/201 cut-off events. [2022-12-05 20:27:44,981 INFO L131 PetriNetUnfolder]: For 535/535 co-relation queries the response was YES. [2022-12-05 20:27:44,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 201 events. 90/201 cut-off events. For 535/535 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 717 event pairs, 6 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 865. Up to 68 conditions per place. [2022-12-05 20:27:44,982 INFO L137 encePairwiseOnDemand]: 11/18 looper letters, 23 selfloop transitions, 5 changer transitions 25/53 dead transitions. [2022-12-05 20:27:44,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 53 transitions, 437 flow [2022-12-05 20:27:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:27:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:27:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-12-05 20:27:44,983 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2022-12-05 20:27:44,983 INFO L175 Difference]: Start difference. First operand has 55 places, 30 transitions, 207 flow. Second operand 6 states and 39 transitions. [2022-12-05 20:27:44,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 53 transitions, 437 flow [2022-12-05 20:27:44,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 398 flow, removed 10 selfloop flow, removed 9 redundant places. [2022-12-05 20:27:44,985 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 139 flow [2022-12-05 20:27:44,985 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2022-12-05 20:27:44,986 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2022-12-05 20:27:44,986 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 139 flow [2022-12-05 20:27:44,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 20:27:44,986 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:27:44,986 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:44,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:27:44,986 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:27:44,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:27:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash -496523702, now seen corresponding path program 3 times [2022-12-05 20:27:44,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:27:44,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013691167] [2022-12-05 20:27:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:27:44,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:27:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:27:45,050 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 20:27:45,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:27:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013691167] [2022-12-05 20:27:45,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013691167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:27:45,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:27:45,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:27:45,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705114056] [2022-12-05 20:27:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:27:45,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:27:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:27:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:27:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:27:45,051 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-05 20:27:45,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 23 transitions, 139 flow. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 20:27:45,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:27:45,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-05 20:27:45,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:27:45,075 INFO L130 PetriNetUnfolder]: 15/49 cut-off events. [2022-12-05 20:27:45,075 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-12-05 20:27:45,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 49 events. 15/49 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 1 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 213. Up to 23 conditions per place. [2022-12-05 20:27:45,076 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2022-12-05 20:27:45,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 29 transitions, 227 flow [2022-12-05 20:27:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:27:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:27:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2022-12-05 20:27:45,077 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2037037037037037 [2022-12-05 20:27:45,077 INFO L175 Difference]: Start difference. First operand has 47 places, 23 transitions, 139 flow. Second operand 6 states and 22 transitions. [2022-12-05 20:27:45,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 29 transitions, 227 flow [2022-12-05 20:27:45,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 198 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-05 20:27:45,078 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-12-05 20:27:45,078 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-12-05 20:27:45,078 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2022-12-05 20:27:45,078 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-12-05 20:27:45,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 20:27:45,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:27:45,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:27:45,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:27:45,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 20:27:45,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:27:45,082 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:27:45,084 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:27:45,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:27:45,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:27:45 BasicIcfg [2022-12-05 20:27:45,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:27:45,087 INFO L158 Benchmark]: Toolchain (without parser) took 5104.78ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 198.5MB in the beginning and 197.4MB in the end (delta: 1.0MB). Peak memory consumption was 93.8MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,088 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 223.3MB. Free memory was 200.3MB in the beginning and 200.2MB in the end (delta: 79.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:27:45,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.03ms. Allocated memory is still 223.3MB. Free memory was 198.5MB in the beginning and 174.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.87ms. Allocated memory is still 223.3MB. Free memory was 174.4MB in the beginning and 172.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,088 INFO L158 Benchmark]: Boogie Preprocessor took 27.09ms. Allocated memory is still 223.3MB. Free memory was 172.8MB in the beginning and 171.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,089 INFO L158 Benchmark]: RCFGBuilder took 335.03ms. Allocated memory is still 223.3MB. Free memory was 171.1MB in the beginning and 157.1MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,089 INFO L158 Benchmark]: TraceAbstraction took 4247.75ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 156.0MB in the beginning and 197.4MB in the end (delta: -41.4MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2022-12-05 20:27:45,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 223.3MB. Free memory was 200.3MB in the beginning and 200.2MB in the end (delta: 79.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.03ms. Allocated memory is still 223.3MB. Free memory was 198.5MB in the beginning and 174.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.87ms. Allocated memory is still 223.3MB. Free memory was 174.4MB in the beginning and 172.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.09ms. Allocated memory is still 223.3MB. Free memory was 172.8MB in the beginning and 171.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 335.03ms. Allocated memory is still 223.3MB. Free memory was 171.1MB in the beginning and 157.1MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4247.75ms. Allocated memory was 223.3MB in the beginning and 315.6MB in the end (delta: 92.3MB). Free memory was 156.0MB in the beginning and 197.4MB in the end (delta: -41.4MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 79 PlacesBefore, 27 PlacesAfterwards, 70 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 746, independent: 707, independent conditional: 707, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 746, independent: 707, independent conditional: 0, independent unconditional: 707, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 746, independent: 707, independent conditional: 0, independent unconditional: 707, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 746, independent: 707, independent conditional: 0, independent unconditional: 707, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 650, independent: 620, independent conditional: 0, independent unconditional: 620, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 650, independent: 609, independent conditional: 0, independent unconditional: 609, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 746, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 650, unknown conditional: 0, unknown unconditional: 650] , Statistics on independence cache: Total cache size (in pairs): 927, Positive cache size: 897, Positive conditional cache size: 0, Positive unconditional cache size: 897, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 491 IncrementalHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 15 mSDtfsCounter, 491 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=7, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 572 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:27:45,116 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...