/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:42:06,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:42:06,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:42:06,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:42:06,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:42:06,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:42:06,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:42:06,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:42:06,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:42:06,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:42:06,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:42:06,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:42:06,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:42:06,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:42:06,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:42:06,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:42:06,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:42:06,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:42:06,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:42:06,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:42:06,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:42:06,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:42:06,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:42:06,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:42:06,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:42:06,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:42:06,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:42:06,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:42:06,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:42:06,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:42:06,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:42:06,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:42:06,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:42:06,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:42:06,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:42:06,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:42:06,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:42:06,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:42:06,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:42:06,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:42:06,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:42:06,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 02:42:06,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:42:06,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:42:06,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:42:06,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:42:06,247 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:42:06,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:42:06,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:42:06,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:42:06,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:42:06,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:42:06,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:42:06,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:42:06,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:42:06,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:42:06,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:42:06,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:42:06,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:42:06,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:42:06,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:42:06,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:42:06,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:42:06,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:42:06,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:42:06,606 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:42:06,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2022-12-06 02:42:07,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:42:08,060 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:42:08,063 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2022-12-06 02:42:08,071 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38246503c/659e1c26d91c476f9ad83d420f4e7cc7/FLAG0b1f6c9f5 [2022-12-06 02:42:08,089 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38246503c/659e1c26d91c476f9ad83d420f4e7cc7 [2022-12-06 02:42:08,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:42:08,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:42:08,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:42:08,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:42:08,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:42:08,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e922dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08, skipping insertion in model container [2022-12-06 02:42:08,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:42:08,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:42:08,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2022-12-06 02:42:08,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:42:08,306 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:42:08,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:42:08,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:42:08,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2022-12-06 02:42:08,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:42:08,360 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:42:08,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08 WrapperNode [2022-12-06 02:42:08,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:42:08,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:42:08,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:42:08,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:42:08,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,406 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2022-12-06 02:42:08,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:42:08,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:42:08,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:42:08,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:42:08,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,439 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:42:08,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:42:08,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:42:08,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:42:08,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (1/1) ... [2022-12-06 02:42:08,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:42:08,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:42:08,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 02:42:08,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 02:42:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:42:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:42:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:42:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:42:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 02:42:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 02:42:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:42:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:42:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:42:08,539 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 02:42:08,648 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:42:08,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:42:08,886 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:42:08,942 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:42:08,942 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 02:42:08,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:42:08 BoogieIcfgContainer [2022-12-06 02:42:08,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:42:08,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:42:08,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:42:08,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:42:08,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:42:08" (1/3) ... [2022-12-06 02:42:08,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c09ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:42:08, skipping insertion in model container [2022-12-06 02:42:08,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:42:08" (2/3) ... [2022-12-06 02:42:08,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c09ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:42:08, skipping insertion in model container [2022-12-06 02:42:08,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:42:08" (3/3) ... [2022-12-06 02:42:08,949 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2022-12-06 02:42:08,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:42:08,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:42:08,963 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:42:09,049 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 02:42:09,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 160 transitions, 352 flow [2022-12-06 02:42:09,199 INFO L130 PetriNetUnfolder]: 12/156 cut-off events. [2022-12-06 02:42:09,199 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:42:09,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 156 events. 12/156 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2022-12-06 02:42:09,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 160 transitions, 352 flow [2022-12-06 02:42:09,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 312 flow [2022-12-06 02:42:09,222 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:09,244 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 144 transitions, 312 flow [2022-12-06 02:42:09,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 144 transitions, 312 flow [2022-12-06 02:42:09,308 INFO L130 PetriNetUnfolder]: 12/144 cut-off events. [2022-12-06 02:42:09,308 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:42:09,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 144 events. 12/144 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2022-12-06 02:42:09,312 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 144 transitions, 312 flow [2022-12-06 02:42:09,312 INFO L188 LiptonReduction]: Number of co-enabled transitions 2280 [2022-12-06 02:42:15,013 INFO L203 LiptonReduction]: Total number of compositions: 113 [2022-12-06 02:42:15,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:42:15,028 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@200dd317, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:42:15,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 02:42:15,034 INFO L130 PetriNetUnfolder]: 4/30 cut-off events. [2022-12-06 02:42:15,034 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:42:15,034 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:15,034 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:15,035 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 2 more)] === [2022-12-06 02:42:15,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:15,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1695043003, now seen corresponding path program 1 times [2022-12-06 02:42:15,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362702614] [2022-12-06 02:42:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:42:15,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:15,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362702614] [2022-12-06 02:42:15,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362702614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:42:15,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:42:15,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:42:15,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057219799] [2022-12-06 02:42:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:42:15,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:42:15,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:42:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 02:42:15,332 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:15,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:15,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:15,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:15,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:15,600 INFO L130 PetriNetUnfolder]: 1420/1898 cut-off events. [2022-12-06 02:42:15,601 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2022-12-06 02:42:15,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3999 conditions, 1898 events. 1420/1898 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 7133 event pairs, 765 based on Foata normal form. 0/1421 useless extension candidates. Maximal degree in co-relation 3498. Up to 1552 conditions per place. [2022-12-06 02:42:15,615 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 42 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2022-12-06 02:42:15,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 215 flow [2022-12-06 02:42:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 02:42:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 02:42:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2022-12-06 02:42:15,627 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2022-12-06 02:42:15,631 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-06 02:42:15,633 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:15,636 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 46 transitions, 215 flow [2022-12-06 02:42:15,646 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 46 transitions, 215 flow [2022-12-06 02:42:15,646 INFO L188 LiptonReduction]: Number of co-enabled transitions 50 [2022-12-06 02:42:15,648 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:42:15,650 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-06 02:42:15,650 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 215 flow [2022-12-06 02:42:15,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:15,650 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:15,650 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:15,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:42:15,653 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 2 more)] === [2022-12-06 02:42:15,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:15,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1731643137, now seen corresponding path program 1 times [2022-12-06 02:42:15,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:15,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884698646] [2022-12-06 02:42:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:15,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 02:42:15,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:15,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884698646] [2022-12-06 02:42:15,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884698646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:42:15,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:42:15,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:42:15,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417980389] [2022-12-06 02:42:15,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:42:15,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:42:15,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:15,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:42:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 02:42:15,807 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-06 02:42:15,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:15,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:15,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-06 02:42:15,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:16,052 INFO L130 PetriNetUnfolder]: 1718/2336 cut-off events. [2022-12-06 02:42:16,053 INFO L131 PetriNetUnfolder]: For 556/556 co-relation queries the response was YES. [2022-12-06 02:42:16,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7130 conditions, 2336 events. 1718/2336 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8318 event pairs, 787 based on Foata normal form. 0/1943 useless extension candidates. Maximal degree in co-relation 6270. Up to 1808 conditions per place. [2022-12-06 02:42:16,064 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 69 selfloop transitions, 4 changer transitions 0/73 dead transitions. [2022-12-06 02:42:16,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 73 transitions, 481 flow [2022-12-06 02:42:16,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 02:42:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 02:42:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2022-12-06 02:42:16,067 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3951612903225806 [2022-12-06 02:42:16,068 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2022-12-06 02:42:16,069 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:16,069 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 73 transitions, 481 flow [2022-12-06 02:42:16,078 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 73 transitions, 481 flow [2022-12-06 02:42:16,078 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:42:16,079 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:42:16,080 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 02:42:16,081 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 73 transitions, 481 flow [2022-12-06 02:42:16,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:16,081 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:16,081 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:16,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:42:16,082 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 2 more)] === [2022-12-06 02:42:16,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash -632645235, now seen corresponding path program 1 times [2022-12-06 02:42:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:16,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737667881] [2022-12-06 02:42:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:16,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:42:16,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:16,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737667881] [2022-12-06 02:42:16,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737667881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:42:16,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:42:16,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:42:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764107676] [2022-12-06 02:42:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:42:16,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:42:16,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:16,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:42:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 02:42:16,209 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:16,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 73 transitions, 481 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:16,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:16,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:16,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:16,478 INFO L130 PetriNetUnfolder]: 2138/2902 cut-off events. [2022-12-06 02:42:16,478 INFO L131 PetriNetUnfolder]: For 1830/1830 co-relation queries the response was YES. [2022-12-06 02:42:16,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11581 conditions, 2902 events. 2138/2902 cut-off events. For 1830/1830 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10877 event pairs, 787 based on Foata normal form. 0/2449 useless extension candidates. Maximal degree in co-relation 10240. Up to 2244 conditions per place. [2022-12-06 02:42:16,494 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 107 selfloop transitions, 9 changer transitions 0/117 dead transitions. [2022-12-06 02:42:16,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 117 transitions, 1001 flow [2022-12-06 02:42:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 02:42:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 02:42:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2022-12-06 02:42:16,495 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2022-12-06 02:42:16,495 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2022-12-06 02:42:16,496 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:16,496 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 117 transitions, 1001 flow [2022-12-06 02:42:16,507 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 117 transitions, 1001 flow [2022-12-06 02:42:16,507 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:42:16,508 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:42:16,509 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-06 02:42:16,509 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 117 transitions, 1001 flow [2022-12-06 02:42:16,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:16,509 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:16,509 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:16,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 02:42:16,509 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 2 more)] === [2022-12-06 02:42:16,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:16,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1239127188, now seen corresponding path program 1 times [2022-12-06 02:42:16,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:16,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258533492] [2022-12-06 02:42:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:16,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 02:42:16,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:16,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258533492] [2022-12-06 02:42:16,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258533492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:42:16,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:42:16,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 02:42:16,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755776885] [2022-12-06 02:42:16,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:42:16,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 02:42:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 02:42:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 02:42:16,582 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:16,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 117 transitions, 1001 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:16,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:16,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:16,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:16,845 INFO L130 PetriNetUnfolder]: 2138/2903 cut-off events. [2022-12-06 02:42:16,845 INFO L131 PetriNetUnfolder]: For 3554/3554 co-relation queries the response was YES. [2022-12-06 02:42:16,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14315 conditions, 2903 events. 2138/2903 cut-off events. For 3554/3554 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10947 event pairs, 787 based on Foata normal form. 0/2450 useless extension candidates. Maximal degree in co-relation 12660. Up to 2729 conditions per place. [2022-12-06 02:42:16,863 INFO L137 encePairwiseOnDemand]: 28/31 looper letters, 115 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2022-12-06 02:42:16,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 118 transitions, 1243 flow [2022-12-06 02:42:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 02:42:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 02:42:16,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-06 02:42:16,864 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3763440860215054 [2022-12-06 02:42:16,866 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2022-12-06 02:42:16,867 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:16,867 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 118 transitions, 1243 flow [2022-12-06 02:42:16,880 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 118 transitions, 1243 flow [2022-12-06 02:42:16,881 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:42:18,223 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 02:42:18,224 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1358 [2022-12-06 02:42:18,224 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 117 transitions, 1233 flow [2022-12-06 02:42:18,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:18,224 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:18,224 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:18,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 02:42:18,225 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 2 more)] === [2022-12-06 02:42:18,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:18,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1444617111, now seen corresponding path program 1 times [2022-12-06 02:42:18,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:18,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713061551] [2022-12-06 02:42:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:18,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 02:42:18,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:18,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713061551] [2022-12-06 02:42:18,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713061551] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:42:18,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061733671] [2022-12-06 02:42:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:18,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:42:18,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:42:18,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 02:42:18,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 02:42:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:18,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-06 02:42:18,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:42:19,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 02:42:19,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 02:42:19,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 02:42:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:42:19,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 02:42:27,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-12-06 02:42:27,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-06 02:42:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:42:27,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061733671] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 02:42:27,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 02:42:27,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 26 [2022-12-06 02:42:27,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75401580] [2022-12-06 02:42:27,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 02:42:27,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-06 02:42:27,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-06 02:42:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=622, Unknown=12, NotChecked=0, Total=756 [2022-12-06 02:42:27,617 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:27,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 117 transitions, 1233 flow. Second operand has 28 states, 28 states have (on average 4.107142857142857) internal successors, (115), 28 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:27,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:27,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:27,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:34,199 INFO L130 PetriNetUnfolder]: 19004/26057 cut-off events. [2022-12-06 02:42:34,199 INFO L131 PetriNetUnfolder]: For 46452/46452 co-relation queries the response was YES. [2022-12-06 02:42:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153059 conditions, 26057 events. 19004/26057 cut-off events. For 46452/46452 co-relation queries the response was YES. Maximal size of possible extension queue 983. Compared 145894 event pairs, 460 based on Foata normal form. 13/20856 useless extension candidates. Maximal degree in co-relation 148690. Up to 24592 conditions per place. [2022-12-06 02:42:34,306 INFO L137 encePairwiseOnDemand]: 20/31 looper letters, 627 selfloop transitions, 159 changer transitions 1141/1928 dead transitions. [2022-12-06 02:42:34,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 1928 transitions, 24130 flow [2022-12-06 02:42:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-06 02:42:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-12-06 02:42:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 839 transitions. [2022-12-06 02:42:34,310 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4748160724391624 [2022-12-06 02:42:34,311 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 66 predicate places. [2022-12-06 02:42:34,311 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:34,311 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 1928 transitions, 24130 flow [2022-12-06 02:42:34,529 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 1928 transitions, 24130 flow [2022-12-06 02:42:34,530 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:42:34,538 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:42:34,539 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 228 [2022-12-06 02:42:34,539 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 1928 transitions, 24130 flow [2022-12-06 02:42:34,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.107142857142857) internal successors, (115), 28 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:34,539 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:34,539 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:34,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 02:42:34,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:42:34,745 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 2 more)] === [2022-12-06 02:42:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1312194429, now seen corresponding path program 2 times [2022-12-06 02:42:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:34,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236434879] [2022-12-06 02:42:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:42:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236434879] [2022-12-06 02:42:34,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236434879] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:42:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125112102] [2022-12-06 02:42:34,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 02:42:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:42:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:42:34,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 02:42:34,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 02:42:35,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 02:42:35,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 02:42:35,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 02:42:35,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:42:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 02:42:35,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 02:42:35,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125112102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:42:35,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 02:42:35,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-06 02:42:35,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141772114] [2022-12-06 02:42:35,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:42:35,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:42:35,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:42:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-06 02:42:35,070 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:35,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 1928 transitions, 24130 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:35,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:35,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:35,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:42:41,041 INFO L130 PetriNetUnfolder]: 22810/31575 cut-off events. [2022-12-06 02:42:41,041 INFO L131 PetriNetUnfolder]: For 83734/83734 co-relation queries the response was YES. [2022-12-06 02:42:41,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214699 conditions, 31575 events. 22810/31575 cut-off events. For 83734/83734 co-relation queries the response was YES. Maximal size of possible extension queue 1210. Compared 184741 event pairs, 58 based on Foata normal form. 11/25012 useless extension candidates. Maximal degree in co-relation 209304. Up to 29740 conditions per place. [2022-12-06 02:42:41,188 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 657 selfloop transitions, 15 changer transitions 2937/3610 dead transitions. [2022-12-06 02:42:41,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 3610 transitions, 52258 flow [2022-12-06 02:42:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 02:42:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 02:42:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2022-12-06 02:42:41,190 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4967741935483871 [2022-12-06 02:42:41,191 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 70 predicate places. [2022-12-06 02:42:41,191 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:42:41,192 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 3610 transitions, 52258 flow [2022-12-06 02:42:41,569 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 3610 transitions, 52258 flow [2022-12-06 02:42:41,569 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:42:41,586 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:42:41,587 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 396 [2022-12-06 02:42:41,587 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 3610 transitions, 52258 flow [2022-12-06 02:42:41,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:41,588 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:42:41,588 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:42:41,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 02:42:41,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-06 02:42:41,794 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 2 more)] === [2022-12-06 02:42:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:42:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash -810565169, now seen corresponding path program 3 times [2022-12-06 02:42:41,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:42:41,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350518500] [2022-12-06 02:42:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:42:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:42:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:42:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:42:42,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:42:42,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350518500] [2022-12-06 02:42:42,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350518500] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:42:42,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392628088] [2022-12-06 02:42:42,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 02:42:42,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:42:42,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:42:42,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 02:42:42,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 02:42:42,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 02:42:42,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 02:42:42,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-06 02:42:42,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:42:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 02:42:42,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 02:42:42,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 02:42:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:42:42,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 02:42:42,793 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_310 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_310) c_~A~0.base) c_~A~0.offset))) (or (< 2147483646 .cse0) (< c_~min~0 (+ 2 .cse0))))) is different from false [2022-12-06 02:42:46,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-12-06 02:42:46,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-06 02:42:46,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2022-12-06 02:42:46,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392628088] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 02:42:46,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 02:42:46,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 20 [2022-12-06 02:42:46,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535162915] [2022-12-06 02:42:46,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 02:42:46,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 02:42:46,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:42:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 02:42:46,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=334, Unknown=6, NotChecked=38, Total=462 [2022-12-06 02:42:46,984 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:42:46,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 3610 transitions, 52258 flow. Second operand has 22 states, 22 states have (on average 4.136363636363637) internal successors, (91), 22 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:42:46,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:42:46,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:42:46,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:43:19,301 INFO L130 PetriNetUnfolder]: 65508/90668 cut-off events. [2022-12-06 02:43:19,301 INFO L131 PetriNetUnfolder]: For 351157/351157 co-relation queries the response was YES. [2022-12-06 02:43:19,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701031 conditions, 90668 events. 65508/90668 cut-off events. For 351157/351157 co-relation queries the response was YES. Maximal size of possible extension queue 3472. Compared 609054 event pairs, 782 based on Foata normal form. 7/71277 useless extension candidates. Maximal degree in co-relation 613710. Up to 85143 conditions per place. [2022-12-06 02:43:19,619 INFO L137 encePairwiseOnDemand]: 21/31 looper letters, 1432 selfloop transitions, 184 changer transitions 10348/11965 dead transitions. [2022-12-06 02:43:19,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 11965 transitions, 197236 flow [2022-12-06 02:43:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 02:43:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 02:43:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 465 transitions. [2022-12-06 02:43:19,624 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-12-06 02:43:19,625 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 97 predicate places. [2022-12-06 02:43:19,627 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:43:19,627 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 11965 transitions, 197236 flow [2022-12-06 02:43:20,667 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 11965 transitions, 197236 flow [2022-12-06 02:43:20,667 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:43:20,709 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:43:20,710 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1085 [2022-12-06 02:43:20,710 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 11965 transitions, 197236 flow [2022-12-06 02:43:20,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.136363636363637) internal successors, (91), 22 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:43:20,710 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:43:20,710 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:43:20,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 02:43:20,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:43:20,916 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 2 more)] === [2022-12-06 02:43:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:43:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1194581249, now seen corresponding path program 4 times [2022-12-06 02:43:20,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:43:20,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300882902] [2022-12-06 02:43:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:43:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:43:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:43:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 02:43:21,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:43:21,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300882902] [2022-12-06 02:43:21,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300882902] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:43:21,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563876919] [2022-12-06 02:43:21,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 02:43:21,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:43:21,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:43:21,532 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 02:43:21,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 02:43:21,627 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 02:43:21,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 02:43:21,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-06 02:43:21,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:43:21,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 02:43:21,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 02:43:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 02:43:21,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 02:43:21,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-12-06 02:43:21,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-06 02:43:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:43:21,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 02:43:24,355 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 02:43:24,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 419 treesize of output 375 [2022-12-06 02:43:24,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 338 treesize of output 330 [2022-12-06 02:43:24,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 326 [2022-12-06 02:43:24,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 318 [2022-12-06 02:43:24,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 302 [2022-12-06 02:43:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 02:43:24,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563876919] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 02:43:24,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 02:43:24,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 27 [2022-12-06 02:43:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523501899] [2022-12-06 02:43:24,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 02:43:24,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-06 02:43:24,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:43:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-06 02:43:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=669, Unknown=18, NotChecked=0, Total=812 [2022-12-06 02:43:24,604 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-06 02:43:24,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 11965 transitions, 197236 flow. Second operand has 29 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:43:24,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:43:24,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-06 02:43:24,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:47:40,277 INFO L130 PetriNetUnfolder]: 99720/138314 cut-off events. [2022-12-06 02:47:40,279 INFO L131 PetriNetUnfolder]: For 206600/206600 co-relation queries the response was YES. [2022-12-06 02:47:40,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222230 conditions, 138314 events. 99720/138314 cut-off events. For 206600/206600 co-relation queries the response was YES. Maximal size of possible extension queue 5450. Compared 968431 event pairs, 177 based on Foata normal form. 9/107588 useless extension candidates. Maximal degree in co-relation 1091750. Up to 132355 conditions per place. [2022-12-06 02:47:40,770 INFO L137 encePairwiseOnDemand]: 24/31 looper letters, 2113 selfloop transitions, 78 changer transitions 19743/21934 dead transitions. [2022-12-06 02:47:40,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 21934 transitions, 405669 flow [2022-12-06 02:47:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 02:47:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 02:47:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 293 transitions. [2022-12-06 02:47:40,775 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47258064516129034 [2022-12-06 02:47:40,777 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 116 predicate places. [2022-12-06 02:47:40,778 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:47:40,778 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 21934 transitions, 405669 flow [2022-12-06 02:47:42,256 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 21934 transitions, 405669 flow [2022-12-06 02:47:42,256 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:47:42,325 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:47:42,328 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1551 [2022-12-06 02:47:42,328 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 21934 transitions, 405669 flow [2022-12-06 02:47:42,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:47:42,328 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:47:42,328 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:47:42,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-06 02:47:42,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:47:42,534 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 2 more)] === [2022-12-06 02:47:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:47:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1656674021, now seen corresponding path program 5 times [2022-12-06 02:47:42,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:47:42,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705468249] [2022-12-06 02:47:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:47:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:47:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:47:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:47:42,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:47:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705468249] [2022-12-06 02:47:42,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705468249] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:47:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019226799] [2022-12-06 02:47:42,816 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 02:47:42,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:47:42,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:47:42,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 02:47:42,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 02:47:43,002 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 02:47:43,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 02:47:43,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 02:47:43,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:47:43,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 02:47:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:47:43,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 02:47:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:47:43,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019226799] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 02:47:43,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 02:47:43,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 14 [2022-12-06 02:47:43,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048768794] [2022-12-06 02:47:43,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:47:43,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 02:47:43,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:47:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 02:47:43,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-12-06 02:47:43,315 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 02:47:43,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 21934 transitions, 405669 flow. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:47:43,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:47:43,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 02:47:43,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 02:55:36,516 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 02:55:36,516 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 02:55:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 02:55:36,713 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 02:55:36,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 02:55:36,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:55:36,918 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). [2022-12-06 02:55:36,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 02:55:36,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 02:55:36,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 02:55:36,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 02:55:36,920 INFO L458 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2022-12-06 02:55:36,923 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 02:55:36,923 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 02:55:36,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 02:55:36 BasicIcfg [2022-12-06 02:55:36,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 02:55:36,925 INFO L158 Benchmark]: Toolchain (without parser) took 808833.57ms. Allocated memory was 197.1MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 173.8MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-12-06 02:55:36,925 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory was 173.8MB in the beginning and 173.7MB in the end (delta: 88.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 02:55:36,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.40ms. Allocated memory is still 197.1MB. Free memory was 173.8MB in the beginning and 160.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 02:55:36,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.64ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 158.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 02:55:36,926 INFO L158 Benchmark]: Boogie Preprocessor took 34.93ms. Allocated memory is still 197.1MB. Free memory was 158.0MB in the beginning and 156.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 02:55:36,926 INFO L158 Benchmark]: RCFGBuilder took 501.59ms. Allocated memory is still 197.1MB. Free memory was 156.3MB in the beginning and 132.5MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 02:55:36,926 INFO L158 Benchmark]: TraceAbstraction took 807979.58ms. Allocated memory was 197.1MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 131.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-12-06 02:55:36,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory was 173.8MB in the beginning and 173.7MB in the end (delta: 88.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 268.40ms. Allocated memory is still 197.1MB. Free memory was 173.8MB in the beginning and 160.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.64ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 158.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.93ms. Allocated memory is still 197.1MB. Free memory was 158.0MB in the beginning and 156.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 501.59ms. Allocated memory is still 197.1MB. Free memory was 156.3MB in the beginning and 132.5MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 807979.58ms. Allocated memory was 197.1MB in the beginning and 3.3GB in the end (delta: 3.1GB). Free memory was 131.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 145 PlacesBefore, 40 PlacesAfterwards, 144 TransitionsBefore, 31 TransitionsAfterwards, 2280 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 66 TrivialYvCompositions, 39 ConcurrentYvCompositions, 8 ChoiceCompositions, 113 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1331, independent: 1309, independent conditional: 1309, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1331, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1331, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1331, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1267, independent: 1249, independent conditional: 0, independent unconditional: 1249, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1267, independent: 1249, independent conditional: 0, independent unconditional: 1249, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1331, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 1267, unknown conditional: 0, unknown unconditional: 1267] , Statistics on independence cache: Total cache size (in pairs): 2030, Positive cache size: 2012, Positive conditional cache size: 0, Positive unconditional cache size: 2012, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 43 PlacesBefore, 43 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 46 PlacesBefore, 46 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 49 PlacesBefore, 49 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 51 PlacesBefore, 50 PlacesAfterwards, 118 TransitionsBefore, 117 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 106 PlacesBefore, 106 PlacesAfterwards, 1928 TransitionsBefore, 1928 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 110 PlacesBefore, 110 PlacesAfterwards, 3610 TransitionsBefore, 3610 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 137 PlacesBefore, 137 PlacesAfterwards, 11965 TransitionsBefore, 11965 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 156 PlacesBefore, 156 PlacesAfterwards, 21934 TransitionsBefore, 21934 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (7states, 1/31 universal loopers) in iteration 9,while PetriNetUnfolder was constructing finite prefix that currently has 1174374 conditions, 120362 events (90213/120361 cut-off events. For 297814/297814 co-relation queries the response was YES. Maximal size of possible extension queue 9596. Compared 840814 event pairs, 90 based on Foata normal form. 0/102125 useless extension candidates. Maximal degree in co-relation 1141534. Up to 114349 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 188 locations, 5 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: 807.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 776.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2069 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2069 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 161 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 220 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4684 IncrementalHoareTripleChecker+Invalid, 5065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 220 mSolverCounterUnsat, 7 mSDtfsCounter, 4684 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 216 SyntacticMatches, 16 SemanticMatches, 204 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3082 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=405669occurred in iteration=8, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 414 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 516 ConstructedInterpolants, 15 QuantifiedInterpolants, 3949 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1403 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 31/48 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown