/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 19:20:44,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 19:20:44,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 19:20:44,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 19:20:44,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 19:20:44,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 19:20:44,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 19:20:44,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 19:20:44,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 19:20:44,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 19:20:44,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 19:20:44,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 19:20:44,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 19:20:44,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 19:20:44,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 19:20:44,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 19:20:44,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 19:20:44,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 19:20:44,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 19:20:44,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 19:20:44,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 19:20:44,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 19:20:44,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 19:20:44,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 19:20:44,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 19:20:44,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 19:20:44,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 19:20:44,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 19:20:44,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 19:20:44,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 19:20:44,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 19:20:44,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 19:20:44,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 19:20:44,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 19:20:44,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 19:20:44,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 19:20:44,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 19:20:44,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 19:20:44,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 19:20:44,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 19:20:44,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 19:20:44,413 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-NoLbe.epf [2022-12-05 19:20:44,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 19:20:44,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 19:20:44,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 19:20:44,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 19:20:44,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 19:20:44,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 19:20:44,446 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 19:20:44,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 19:20:44,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 19:20:44,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 19:20:44,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 19:20:44,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 19:20:44,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 19:20:44,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 19:20:44,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 19:20:44,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 19:20:44,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:20:44,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 19:20:44,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 19:20:44,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 19:20:44,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 19:20:44,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 19:20:44,767 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 19:20:44,768 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 19:20:44,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-12-05 19:20:45,748 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 19:20:45,972 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 19:20:45,972 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-12-05 19:20:45,984 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4096ce740/24c36bb047e84115b8f5aea3819e3283/FLAG91bf0bb7d [2022-12-05 19:20:45,996 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4096ce740/24c36bb047e84115b8f5aea3819e3283 [2022-12-05 19:20:45,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 19:20:45,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 19:20:45,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 19:20:45,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 19:20:46,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 19:20:46,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:20:45" (1/1) ... [2022-12-05 19:20:46,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75165efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46, skipping insertion in model container [2022-12-05 19:20:46,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:20:45" (1/1) ... [2022-12-05 19:20:46,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 19:20:46,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 19:20:46,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,164 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-more-array-sum2.wvr.c[2599,2612] [2022-12-05 19:20:46,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:20:46,180 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 19:20:46,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:46,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:46,207 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-more-array-sum2.wvr.c[2599,2612] [2022-12-05 19:20:46,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:20:46,227 INFO L208 MainTranslator]: Completed translation [2022-12-05 19:20:46,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46 WrapperNode [2022-12-05 19:20:46,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 19:20:46,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 19:20:46,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 19:20:46,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 19:20:46,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,285 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 271 [2022-12-05 19:20:46,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 19:20:46,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 19:20:46,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 19:20:46,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 19:20:46,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 19:20:46,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 19:20:46,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 19:20:46,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 19:20:46,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (1/1) ... [2022-12-05 19:20:46,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:20:46,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:46,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 19:20:46,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 19:20:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 19:20:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 19:20:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 19:20:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 19:20:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 19:20:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 19:20:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 19:20:46,449 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 19:20:46,542 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 19:20:46,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 19:20:46,963 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 19:20:47,154 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 19:20:47,154 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-05 19:20:47,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:20:47 BoogieIcfgContainer [2022-12-05 19:20:47,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 19:20:47,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 19:20:47,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 19:20:47,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 19:20:47,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 07:20:45" (1/3) ... [2022-12-05 19:20:47,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dc036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:20:47, skipping insertion in model container [2022-12-05 19:20:47,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:46" (2/3) ... [2022-12-05 19:20:47,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dc036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:20:47, skipping insertion in model container [2022-12-05 19:20:47,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:20:47" (3/3) ... [2022-12-05 19:20:47,163 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-12-05 19:20:47,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 19:20:47,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 19:20:47,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 19:20:47,227 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 19:20:47,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 176 transitions, 376 flow [2022-12-05 19:20:47,329 INFO L130 PetriNetUnfolder]: 16/173 cut-off events. [2022-12-05 19:20:47,329 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:20:47,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 173 events. 16/173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2022-12-05 19:20:47,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 176 transitions, 376 flow [2022-12-05 19:20:47,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 163 transitions, 344 flow [2022-12-05 19:20:47,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 19:20:47,353 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@364ce671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 19:20:47,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 19:20:47,392 INFO L130 PetriNetUnfolder]: 16/162 cut-off events. [2022-12-05 19:20:47,392 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:20:47,392 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:47,392 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, 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, 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, 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] [2022-12-05 19:20:47,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash -78942619, now seen corresponding path program 1 times [2022-12-05 19:20:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777889207] [2022-12-05 19:20:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:47,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:48,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:48,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777889207] [2022-12-05 19:20:48,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777889207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:48,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:20:48,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 19:20:48,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986224517] [2022-12-05 19:20:48,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:48,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 19:20:48,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:48,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 19:20:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 19:20:48,112 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 176 [2022-12-05 19:20:48,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 163 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:48,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:48,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 176 [2022-12-05 19:20:48,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:48,312 INFO L130 PetriNetUnfolder]: 55/369 cut-off events. [2022-12-05 19:20:48,312 INFO L131 PetriNetUnfolder]: For 71/72 co-relation queries the response was YES. [2022-12-05 19:20:48,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 369 events. 55/369 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1186 event pairs, 6 based on Foata normal form. 65/391 useless extension candidates. Maximal degree in co-relation 275. Up to 52 conditions per place. [2022-12-05 19:20:48,316 INFO L137 encePairwiseOnDemand]: 151/176 looper letters, 47 selfloop transitions, 6 changer transitions 12/176 dead transitions. [2022-12-05 19:20:48,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 176 transitions, 527 flow [2022-12-05 19:20:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 19:20:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 19:20:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1192 transitions. [2022-12-05 19:20:48,331 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7525252525252525 [2022-12-05 19:20:48,332 INFO L175 Difference]: Start difference. First operand has 157 places, 163 transitions, 344 flow. Second operand 9 states and 1192 transitions. [2022-12-05 19:20:48,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 176 transitions, 527 flow [2022-12-05 19:20:48,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 176 transitions, 497 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 19:20:48,338 INFO L231 Difference]: Finished difference. Result has 162 places, 150 transitions, 334 flow [2022-12-05 19:20:48,343 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=334, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2022-12-05 19:20:48,345 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 5 predicate places. [2022-12-05 19:20:48,345 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 334 flow [2022-12-05 19:20:48,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:48,346 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:48,346 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, 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, 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, 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, 1, 1] [2022-12-05 19:20:48,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 19:20:48,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash -154155924, now seen corresponding path program 1 times [2022-12-05 19:20:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:48,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72469773] [2022-12-05 19:20:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:48,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:48,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72469773] [2022-12-05 19:20:48,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72469773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:48,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:20:48,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:20:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687069498] [2022-12-05 19:20:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:48,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:20:48,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:48,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:20:48,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:20:48,503 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2022-12-05 19:20:48,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 334 flow. Second operand has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:48,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:48,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2022-12-05 19:20:48,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:48,856 INFO L130 PetriNetUnfolder]: 479/1672 cut-off events. [2022-12-05 19:20:48,856 INFO L131 PetriNetUnfolder]: For 307/350 co-relation queries the response was YES. [2022-12-05 19:20:48,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2886 conditions, 1672 events. 479/1672 cut-off events. For 307/350 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10956 event pairs, 181 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 2864. Up to 440 conditions per place. [2022-12-05 19:20:48,868 INFO L137 encePairwiseOnDemand]: 162/176 looper letters, 102 selfloop transitions, 18 changer transitions 0/223 dead transitions. [2022-12-05 19:20:48,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 223 transitions, 776 flow [2022-12-05 19:20:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 19:20:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 19:20:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1441 transitions. [2022-12-05 19:20:48,872 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818 [2022-12-05 19:20:48,872 INFO L175 Difference]: Start difference. First operand has 162 places, 150 transitions, 334 flow. Second operand 11 states and 1441 transitions. [2022-12-05 19:20:48,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 223 transitions, 776 flow [2022-12-05 19:20:48,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 223 transitions, 772 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 19:20:48,876 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 416 flow [2022-12-05 19:20:48,876 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=416, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2022-12-05 19:20:48,877 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 6 predicate places. [2022-12-05 19:20:48,877 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 416 flow [2022-12-05 19:20:48,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:48,878 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:48,878 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, 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, 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, 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, 1, 1] [2022-12-05 19:20:48,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 19:20:48,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash 806638956, now seen corresponding path program 1 times [2022-12-05 19:20:48,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438360229] [2022-12-05 19:20:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:49,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:49,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438360229] [2022-12-05 19:20:49,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438360229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:49,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:20:49,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 19:20:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229087805] [2022-12-05 19:20:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 19:20:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 19:20:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-05 19:20:49,124 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 176 [2022-12-05 19:20:49,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 96.5) internal successors, (965), 10 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:49,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:49,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 176 [2022-12-05 19:20:49,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:49,660 INFO L130 PetriNetUnfolder]: 960/2290 cut-off events. [2022-12-05 19:20:49,660 INFO L131 PetriNetUnfolder]: For 630/678 co-relation queries the response was YES. [2022-12-05 19:20:49,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4519 conditions, 2290 events. 960/2290 cut-off events. For 630/678 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 15688 event pairs, 621 based on Foata normal form. 48/2079 useless extension candidates. Maximal degree in co-relation 3357. Up to 1143 conditions per place. [2022-12-05 19:20:49,674 INFO L137 encePairwiseOnDemand]: 159/176 looper letters, 140 selfloop transitions, 24 changer transitions 0/245 dead transitions. [2022-12-05 19:20:49,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 245 transitions, 962 flow [2022-12-05 19:20:49,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 19:20:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 19:20:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1705 transitions. [2022-12-05 19:20:49,677 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5698529411764706 [2022-12-05 19:20:49,677 INFO L175 Difference]: Start difference. First operand has 163 places, 160 transitions, 416 flow. Second operand 17 states and 1705 transitions. [2022-12-05 19:20:49,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 245 transitions, 962 flow [2022-12-05 19:20:49,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 245 transitions, 957 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 19:20:49,712 INFO L231 Difference]: Finished difference. Result has 179 places, 168 transitions, 489 flow [2022-12-05 19:20:49,712 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=489, PETRI_PLACES=179, PETRI_TRANSITIONS=168} [2022-12-05 19:20:49,713 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 22 predicate places. [2022-12-05 19:20:49,713 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 168 transitions, 489 flow [2022-12-05 19:20:49,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.5) internal successors, (965), 10 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:49,714 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:49,714 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, 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, 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, 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, 1, 1] [2022-12-05 19:20:49,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 19:20:49,714 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:49,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1711834396, now seen corresponding path program 1 times [2022-12-05 19:20:49,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:49,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659188535] [2022-12-05 19:20:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:49,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:49,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:49,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659188535] [2022-12-05 19:20:49,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659188535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:49,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:20:49,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 19:20:49,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284503000] [2022-12-05 19:20:49,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:49,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 19:20:49,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 19:20:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-05 19:20:49,948 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2022-12-05 19:20:49,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 168 transitions, 489 flow. Second operand has 10 states, 10 states have (on average 97.4) internal successors, (974), 10 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:49,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:49,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2022-12-05 19:20:49,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:50,447 INFO L130 PetriNetUnfolder]: 714/1601 cut-off events. [2022-12-05 19:20:50,447 INFO L131 PetriNetUnfolder]: For 938/974 co-relation queries the response was YES. [2022-12-05 19:20:50,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3552 conditions, 1601 events. 714/1601 cut-off events. For 938/974 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9416 event pairs, 372 based on Foata normal form. 36/1522 useless extension candidates. Maximal degree in co-relation 3089. Up to 843 conditions per place. [2022-12-05 19:20:50,455 INFO L137 encePairwiseOnDemand]: 158/176 looper letters, 78 selfloop transitions, 11 changer transitions 65/234 dead transitions. [2022-12-05 19:20:50,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 234 transitions, 967 flow [2022-12-05 19:20:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 19:20:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 19:20:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1801 transitions. [2022-12-05 19:20:50,459 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5684974747474747 [2022-12-05 19:20:50,459 INFO L175 Difference]: Start difference. First operand has 179 places, 168 transitions, 489 flow. Second operand 18 states and 1801 transitions. [2022-12-05 19:20:50,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 234 transitions, 967 flow [2022-12-05 19:20:50,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 234 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 19:20:50,464 INFO L231 Difference]: Finished difference. Result has 195 places, 152 transitions, 418 flow [2022-12-05 19:20:50,464 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=418, PETRI_PLACES=195, PETRI_TRANSITIONS=152} [2022-12-05 19:20:50,465 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 38 predicate places. [2022-12-05 19:20:50,465 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 152 transitions, 418 flow [2022-12-05 19:20:50,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.4) internal successors, (974), 10 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:50,466 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:50,466 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:20:50,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 19:20:50,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:50,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash -547003924, now seen corresponding path program 1 times [2022-12-05 19:20:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:50,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599776308] [2022-12-05 19:20:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:50,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:50,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599776308] [2022-12-05 19:20:50,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599776308] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106417571] [2022-12-05 19:20:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:50,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:50,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:50,641 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) [2022-12-05 19:20:50,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 19:20:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:50,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:20:50,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:50,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:20:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:51,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106417571] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:51,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:20:51,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-12-05 19:20:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984014019] [2022-12-05 19:20:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 19:20:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 19:20:51,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-05 19:20:51,164 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 176 [2022-12-05 19:20:51,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 152 transitions, 418 flow. Second operand has 9 states, 9 states have (on average 118.66666666666667) internal successors, (1068), 9 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:51,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:51,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 176 [2022-12-05 19:20:51,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:51,574 INFO L130 PetriNetUnfolder]: 1459/2833 cut-off events. [2022-12-05 19:20:51,574 INFO L131 PetriNetUnfolder]: For 2041/2041 co-relation queries the response was YES. [2022-12-05 19:20:51,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6890 conditions, 2833 events. 1459/2833 cut-off events. For 2041/2041 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 19385 event pairs, 403 based on Foata normal form. 10/2785 useless extension candidates. Maximal degree in co-relation 6871. Up to 699 conditions per place. [2022-12-05 19:20:51,593 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 108 selfloop transitions, 17 changer transitions 0/221 dead transitions. [2022-12-05 19:20:51,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 221 transitions, 929 flow [2022-12-05 19:20:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 19:20:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 19:20:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1361 transitions. [2022-12-05 19:20:51,596 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.702995867768595 [2022-12-05 19:20:51,596 INFO L175 Difference]: Start difference. First operand has 195 places, 152 transitions, 418 flow. Second operand 11 states and 1361 transitions. [2022-12-05 19:20:51,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 221 transitions, 929 flow [2022-12-05 19:20:51,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 221 transitions, 806 flow, removed 41 selfloop flow, removed 17 redundant places. [2022-12-05 19:20:51,607 INFO L231 Difference]: Finished difference. Result has 167 places, 164 transitions, 445 flow [2022-12-05 19:20:51,607 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=445, PETRI_PLACES=167, PETRI_TRANSITIONS=164} [2022-12-05 19:20:51,608 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 10 predicate places. [2022-12-05 19:20:51,608 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 164 transitions, 445 flow [2022-12-05 19:20:51,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.66666666666667) internal successors, (1068), 9 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:51,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:51,609 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:20:51,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-05 19:20:51,814 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 [2022-12-05 19:20:51,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash -442367506, now seen corresponding path program 2 times [2022-12-05 19:20:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:51,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030416087] [2022-12-05 19:20:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:51,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:51,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030416087] [2022-12-05 19:20:51,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030416087] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:51,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882041904] [2022-12-05 19:20:51,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:20:51,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:51,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:51,958 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) [2022-12-05 19:20:51,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 19:20:52,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 19:20:52,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:20:52,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-05 19:20:52,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-05 19:20:52,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 19:20:52,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882041904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:52,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 19:20:52,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-05 19:20:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920642410] [2022-12-05 19:20:52,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:52,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 19:20:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 19:20:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-05 19:20:52,204 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 176 [2022-12-05 19:20:52,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 164 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:52,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:52,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 176 [2022-12-05 19:20:52,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:52,523 INFO L130 PetriNetUnfolder]: 1020/2126 cut-off events. [2022-12-05 19:20:52,523 INFO L131 PetriNetUnfolder]: For 1097/1142 co-relation queries the response was YES. [2022-12-05 19:20:52,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5110 conditions, 2126 events. 1020/2126 cut-off events. For 1097/1142 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14115 event pairs, 266 based on Foata normal form. 89/2034 useless extension candidates. Maximal degree in co-relation 5028. Up to 910 conditions per place. [2022-12-05 19:20:52,537 INFO L137 encePairwiseOnDemand]: 167/176 looper letters, 62 selfloop transitions, 13 changer transitions 0/179 dead transitions. [2022-12-05 19:20:52,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 179 transitions, 657 flow [2022-12-05 19:20:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:20:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:20:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 938 transitions. [2022-12-05 19:20:52,539 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6661931818181818 [2022-12-05 19:20:52,539 INFO L175 Difference]: Start difference. First operand has 167 places, 164 transitions, 445 flow. Second operand 8 states and 938 transitions. [2022-12-05 19:20:52,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 179 transitions, 657 flow [2022-12-05 19:20:52,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 179 transitions, 650 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 19:20:52,544 INFO L231 Difference]: Finished difference. Result has 173 places, 167 transitions, 506 flow [2022-12-05 19:20:52,544 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=506, PETRI_PLACES=173, PETRI_TRANSITIONS=167} [2022-12-05 19:20:52,545 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 16 predicate places. [2022-12-05 19:20:52,545 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 167 transitions, 506 flow [2022-12-05 19:20:52,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:52,545 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:52,545 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:20:52,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 19:20:52,750 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 [2022-12-05 19:20:52,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1297226606, now seen corresponding path program 1 times [2022-12-05 19:20:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:52,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489187682] [2022-12-05 19:20:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:52,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:52,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489187682] [2022-12-05 19:20:52,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489187682] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:52,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356224456] [2022-12-05 19:20:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:52,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:52,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:52,892 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) [2022-12-05 19:20:52,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 19:20:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:53,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 19:20:53,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:53,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:20:53,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:53,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356224456] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:53,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:20:53,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-12-05 19:20:53,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594071306] [2022-12-05 19:20:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:53,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:20:53,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:53,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:20:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-05 19:20:53,248 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2022-12-05 19:20:53,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 167 transitions, 506 flow. Second operand has 7 states, 7 states have (on average 126.42857142857143) internal successors, (885), 7 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:53,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:53,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2022-12-05 19:20:53,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:53,462 INFO L130 PetriNetUnfolder]: 436/1223 cut-off events. [2022-12-05 19:20:53,462 INFO L131 PetriNetUnfolder]: For 1365/1449 co-relation queries the response was YES. [2022-12-05 19:20:53,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 1223 events. 436/1223 cut-off events. For 1365/1449 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7316 event pairs, 145 based on Foata normal form. 61/1227 useless extension candidates. Maximal degree in co-relation 2947. Up to 352 conditions per place. [2022-12-05 19:20:53,473 INFO L137 encePairwiseOnDemand]: 168/176 looper letters, 64 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2022-12-05 19:20:53,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 182 transitions, 735 flow [2022-12-05 19:20:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 19:20:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 19:20:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2022-12-05 19:20:53,475 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7297077922077922 [2022-12-05 19:20:53,475 INFO L175 Difference]: Start difference. First operand has 173 places, 167 transitions, 506 flow. Second operand 7 states and 899 transitions. [2022-12-05 19:20:53,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 182 transitions, 735 flow [2022-12-05 19:20:53,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 182 transitions, 713 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-05 19:20:53,483 INFO L231 Difference]: Finished difference. Result has 176 places, 168 transitions, 516 flow [2022-12-05 19:20:53,483 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=516, PETRI_PLACES=176, PETRI_TRANSITIONS=168} [2022-12-05 19:20:53,484 INFO L294 CegarLoopForPetriNet]: 157 programPoint places, 19 predicate places. [2022-12-05 19:20:53,484 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 168 transitions, 516 flow [2022-12-05 19:20:53,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.42857142857143) internal successors, (885), 7 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:53,484 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:53,484 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:20:53,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-05 19:20:53,690 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 [2022-12-05 19:20:53,690 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:53,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1694921385, now seen corresponding path program 1 times [2022-12-05 19:20:53,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:53,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838427378] [2022-12-05 19:20:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:53,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:56,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838427378] [2022-12-05 19:20:56,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838427378] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:56,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937896331] [2022-12-05 19:20:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:56,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:56,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:56,796 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) [2022-12-05 19:20:56,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 19:20:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:56,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 110 conjunts are in the unsatisfiable core [2022-12-05 19:20:56,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:57,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:57,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-05 19:20:58,570 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 19:20:58,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 19:20:58,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-05 19:20:59,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:59,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:21:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:21:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:21:00,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 25 [2022-12-05 19:21:00,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-05 19:21:00,354 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-05 19:21:00,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 14 [2022-12-05 19:21:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:21:00,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:21:00,640 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (* 4 c_~M~0))) (let ((.cse1 (+ c_~A~0.offset .cse4)) (.cse2 (+ .cse4 c_~B~0.offset))) (and (forall ((v_ArrVal_232 (Array Int Int))) (<= c_~res1~0 (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse0 c_~A~0.base) .cse1) c_~res2~0 (select (select .cse0 c_~B~0.base) .cse2))))) (forall ((v_ArrVal_232 (Array Int Int))) (< (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse3 c_~A~0.base) .cse1) c_~res2~0 (select (select .cse3 c_~B~0.base) .cse2))) (+ c_~res1~0 1)))))) is different from false [2022-12-05 19:21:00,706 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (.cse7 (* 4 c_~M~0))) (let ((.cse3 (+ c_~A~0.offset .cse7)) (.cse4 (+ .cse7 c_~B~0.offset)) (.cse0 (select (select |c_#memory_int| c_~A~0.base) (+ .cse6 c_~A~0.offset))) (.cse1 (select (select |c_#memory_int| c_~B~0.base) (+ .cse6 c_~B~0.offset)))) (and (forall ((v_ArrVal_232 (Array Int Int))) (<= (+ .cse0 .cse1 c_~res1~0) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse2 c_~A~0.base) .cse3) c_~res2~0 (select (select .cse2 c_~B~0.base) .cse4))))) (forall ((v_ArrVal_232 (Array Int Int))) (< (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse5 c_~A~0.base) .cse3) c_~res2~0 (select (select .cse5 c_~B~0.base) .cse4))) (+ .cse0 .cse1 c_~res1~0 1)))))) is different from false [2022-12-05 19:21:00,876 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* 4 c_~M~0))) (let ((.cse2 (+ .cse6 c_~B~0.offset)) (.cse3 (+ c_~A~0.offset .cse6))) (and (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (<= (+ c_~res1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset)) (let ((.cse1 (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse1 c_~B~0.base) .cse2) (select (select .cse1 c_~A~0.base) .cse3)))))) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (< (let ((.cse4 (store .cse5 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse4 c_~B~0.base) .cse2) (select (select .cse4 c_~A~0.base) .cse3))) (+ c_~res1~0 (select (select .cse5 c_~A~0.base) c_~A~0.offset) (select (select .cse5 c_~B~0.base) c_~B~0.offset) 1))))))) is different from false [2022-12-05 19:21:00,927 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* 4 c_~M~0))) (let ((.cse2 (+ c_~A~0.offset .cse6)) (.cse3 (+ .cse6 c_~B~0.offset))) (and (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (<= (+ (select (select .cse0 c_~B~0.base) c_~B~0.offset) c_~res1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset)) (let ((.cse1 (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse1 c_~A~0.base) .cse2) c_~res2~0 (select (select .cse1 c_~B~0.base) .cse3)))))) (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (< (let ((.cse4 (store .cse5 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse4 c_~A~0.base) .cse2) c_~res2~0 (select (select .cse4 c_~B~0.base) .cse3))) (+ (select (select .cse5 c_~B~0.base) c_~B~0.offset) c_~res1~0 (select (select .cse5 c_~A~0.base) c_~A~0.offset) 1))))))) is different from false [2022-12-05 19:21:03,083 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base|))) (and (forall ((~M~0 Int) (v_ArrVal_229 Int)) (or (< ~M~0 0) (<= c_~N~0 ~M~0) (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| (store .cse3 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset| v_ArrVal_229)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (< (let ((.cse0 (store .cse2 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base|) (+ |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset| .cse1)) c_~res2~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) (+ c_~res1~0 (select (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset|) (select (select .cse2 c_~A~0.base) c_~A~0.offset) 1)))))) (forall ((~M~0 Int) (v_ArrVal_229 Int)) (or (< ~M~0 0) (<= c_~N~0 ~M~0) (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| (store .cse3 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset| v_ArrVal_229)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231))) (<= (+ c_~res1~0 (select (select .cse4 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset|) (select (select .cse4 c_~A~0.base) c_~A~0.offset)) (let ((.cse5 (store .cse4 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232)) (.cse6 (* ~M~0 4))) (+ (select (select .cse5 |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base|) (+ |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.offset| .cse6)) c_~res2~0 (select (select .cse5 c_~A~0.base) (+ c_~A~0.offset .cse6))))))))))) is different from false [2022-12-05 19:21:38,187 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2022-12-05 19:21:38,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 96 [2022-12-05 19:21:38,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:21:38,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 141328 treesize of output 126084 [2022-12-05 19:21:38,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:21:38,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125942 treesize of output 105470 [2022-12-05 19:21:39,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:21:39,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105462 treesize of output 87088 [2022-12-05 19:21:39,656 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:21:39,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87030 treesize of output 77872 Received shutdown request... [2022-12-05 19:35:05,303 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-05 19:35:05,303 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 19:35:05,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 19:35:05,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-05 19:35:05,319 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 [2022-12-05 19:35:05,512 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 [2022-12-05 19:35:05,513 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 142 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-3-3-3-3-3-3-2-3-2-2-2-2-2-2-1 context. [2022-12-05 19:35:05,514 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 19:35:05,515 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 19:35:05,515 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 19:35:05,515 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-05 19:35:05,517 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 19:35:05,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 19:35:05,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 07:35:05 BasicIcfg [2022-12-05 19:35:05,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 19:35:05,520 INFO L158 Benchmark]: Toolchain (without parser) took 859522.17ms. Allocated memory was 227.5MB in the beginning and 1.0GB in the end (delta: 780.1MB). Free memory was 203.4MB in the beginning and 376.1MB in the end (delta: -172.7MB). Peak memory consumption was 642.1MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,521 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 227.5MB. Free memory was 204.5MB in the beginning and 204.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 19:35:05,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.87ms. Allocated memory is still 227.5MB. Free memory was 203.0MB in the beginning and 190.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.80ms. Allocated memory is still 227.5MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,521 INFO L158 Benchmark]: Boogie Preprocessor took 38.98ms. Allocated memory is still 227.5MB. Free memory was 188.2MB in the beginning and 186.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,522 INFO L158 Benchmark]: RCFGBuilder took 832.00ms. Allocated memory is still 227.5MB. Free memory was 186.1MB in the beginning and 128.4MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,522 INFO L158 Benchmark]: TraceAbstraction took 858361.18ms. Allocated memory was 227.5MB in the beginning and 1.0GB in the end (delta: 780.1MB). Free memory was 127.9MB in the beginning and 376.1MB in the end (delta: -248.2MB). Peak memory consumption was 566.6MB. Max. memory is 8.0GB. [2022-12-05 19:35:05,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 227.5MB. Free memory was 204.5MB in the beginning and 204.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.87ms. Allocated memory is still 227.5MB. Free memory was 203.0MB in the beginning and 190.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.80ms. Allocated memory is still 227.5MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.98ms. Allocated memory is still 227.5MB. Free memory was 188.2MB in the beginning and 186.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 832.00ms. Allocated memory is still 227.5MB. Free memory was 186.1MB in the beginning and 128.4MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * TraceAbstraction took 858361.18ms. Allocated memory was 227.5MB in the beginning and 1.0GB in the end (delta: 780.1MB). Free memory was 127.9MB in the beginning and 376.1MB in the end (delta: -248.2MB). Peak memory consumption was 566.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 142 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-3-3-3-3-3-3-2-3-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 142 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-3-3-3-3-3-3-2-3-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 142 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-3-3-3-3-3-3-2-3-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 142 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-3-3-3-3-3-3-2-3-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 191 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 858.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1455 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1455 mSDsluCounter, 627 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 437 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1163 IncrementalHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 190 mSDtfsCounter, 1163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 791 GetRequests, 669 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=516occurred in iteration=7, InterpolantAutomatonStates: 81, 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, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1299 NumberOfCodeBlocks, 1280 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1559 ConstructedInterpolants, 0 QuantifiedInterpolants, 4246 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1018 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 22/27 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