/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 20:19:39,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 20:19:39,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 20:19:39,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 20:19:39,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 20:19:39,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 20:19:39,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 20:19:39,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 20:19:39,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 20:19:39,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 20:19:39,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 20:19:39,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 20:19:39,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 20:19:39,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 20:19:39,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 20:19:39,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 20:19:39,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 20:19:39,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 20:19:39,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 20:19:39,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 20:19:39,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 20:19:39,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 20:19:39,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 20:19:39,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 20:19:39,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 20:19:39,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 20:19:39,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 20:19:39,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 20:19:39,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 20:19:39,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 20:19:39,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 20:19:39,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 20:19:39,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 20:19:39,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 20:19:39,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 20:19:39,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 20:19:39,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 20:19:39,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 20:19:39,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 20:19:39,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 20:19:39,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 20:19:39,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 20:19:39,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 20:19:39,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 20:19:39,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 20:19:39,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 20:19:39,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 20:19:39,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 20:19:39,895 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 20:19:39,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 20:19:39,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 20:19:39,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 20:19:39,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 20:19:39,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 20:19:39,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 20:19:39,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 20:19:39,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 20:19:39,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 20:19:39,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 20:19:40,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 20:19:40,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 20:19:40,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 20:19:40,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 20:19:40,175 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 20:19:40,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2022-12-12 20:19:41,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 20:19:41,373 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 20:19:41,373 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c [2022-12-12 20:19:41,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e22db56/ad6b9522bb1f4a8fa00477edb65d2342/FLAG2dbb8d12a [2022-12-12 20:19:41,392 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e22db56/ad6b9522bb1f4a8fa00477edb65d2342 [2022-12-12 20:19:41,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 20:19:41,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 20:19:41,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 20:19:41,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 20:19:41,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 20:19:41,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6407fc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41, skipping insertion in model container [2022-12-12 20:19:41,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 20:19:41,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 20:19:41,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2022-12-12 20:19:41,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 20:19:41,558 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 20:19:41,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:19:41,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:19:41,592 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-max-array-hom.wvr.c[2586,2599] [2022-12-12 20:19:41,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 20:19:41,608 INFO L208 MainTranslator]: Completed translation [2022-12-12 20:19:41,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41 WrapperNode [2022-12-12 20:19:41,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 20:19:41,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 20:19:41,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 20:19:41,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 20:19:41,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,654 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-12-12 20:19:41,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 20:19:41,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 20:19:41,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 20:19:41,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 20:19:41,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 20:19:41,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 20:19:41,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 20:19:41,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 20:19:41,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (1/1) ... [2022-12-12 20:19:41,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 20:19:41,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:19:41,749 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) [2022-12-12 20:19:41,785 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 [2022-12-12 20:19:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 20:19:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 20:19:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 20:19:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 20:19:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 20:19:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 20:19:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 20:19:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 20:19:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 20:19:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 20:19:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 20:19:41,815 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 20:19:41,921 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 20:19:41,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 20:19:42,154 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 20:19:42,192 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 20:19:42,192 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-12 20:19:42,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 08:19:42 BoogieIcfgContainer [2022-12-12 20:19:42,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 20:19:42,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 20:19:42,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 20:19:42,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 20:19:42,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 08:19:41" (1/3) ... [2022-12-12 20:19:42,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9f5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 08:19:42, skipping insertion in model container [2022-12-12 20:19:42,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:19:41" (2/3) ... [2022-12-12 20:19:42,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9f5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 08:19:42, skipping insertion in model container [2022-12-12 20:19:42,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 08:19:42" (3/3) ... [2022-12-12 20:19:42,201 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2022-12-12 20:19:42,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 20:19:42,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 20:19:42,214 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 20:19:42,282 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 20:19:42,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 142 transitions, 308 flow [2022-12-12 20:19:42,391 INFO L130 PetriNetUnfolder]: 12/139 cut-off events. [2022-12-12 20:19:42,391 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:19:42,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 12/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2022-12-12 20:19:42,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 142 transitions, 308 flow [2022-12-12 20:19:42,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 129 transitions, 276 flow [2022-12-12 20:19:42,404 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 20:19:42,422 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 129 transitions, 276 flow [2022-12-12 20:19:42,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 129 transitions, 276 flow [2022-12-12 20:19:42,496 INFO L130 PetriNetUnfolder]: 12/129 cut-off events. [2022-12-12 20:19:42,496 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:19:42,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 12/129 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2022-12-12 20:19:42,501 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 129 transitions, 276 flow [2022-12-12 20:19:42,501 INFO L226 LiptonReduction]: Number of co-enabled transitions 1320 [2022-12-12 20:19:46,478 INFO L241 LiptonReduction]: Total number of compositions: 105 [2022-12-12 20:19:46,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 20:19:46,495 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;@3fe7cb31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 20:19:46,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 20:19:46,512 INFO L130 PetriNetUnfolder]: 4/23 cut-off events. [2022-12-12 20:19:46,512 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:19:46,512 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:19:46,513 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:19:46,513 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)] === [2022-12-12 20:19:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:19:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1106873309, now seen corresponding path program 1 times [2022-12-12 20:19:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:19:46,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342146468] [2022-12-12 20:19:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:19:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:47,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:19:47,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342146468] [2022-12-12 20:19:47,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342146468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:19:47,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:19:47,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 20:19:47,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521290921] [2022-12-12 20:19:47,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:19:47,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 20:19:47,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:19:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 20:19:47,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 20:19:47,046 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-12 20:19:47,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:47,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:19:47,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-12 20:19:47,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:19:47,134 INFO L130 PetriNetUnfolder]: 269/376 cut-off events. [2022-12-12 20:19:47,134 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-12 20:19:47,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 376 events. 269/376 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1110 event pairs, 133 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 615. Up to 373 conditions per place. [2022-12-12 20:19:47,138 INFO L137 encePairwiseOnDemand]: 21/24 looper letters, 21 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-12-12 20:19:47,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 114 flow [2022-12-12 20:19:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 20:19:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 20:19:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-12 20:19:47,147 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-12 20:19:47,150 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-12 20:19:47,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 25 transitions, 114 flow [2022-12-12 20:19:47,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 114 flow [2022-12-12 20:19:47,153 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 114 flow [2022-12-12 20:19:47,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:47,153 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:19:47,154 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:19:47,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 20:19:47,154 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)] === [2022-12-12 20:19:47,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:19:47,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1575989531, now seen corresponding path program 1 times [2022-12-12 20:19:47,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:19:47,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091093211] [2022-12-12 20:19:47,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:47,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:19:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:47,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:19:47,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091093211] [2022-12-12 20:19:47,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091093211] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:19:47,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439097634] [2022-12-12 20:19:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:47,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:19:47,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:19:47,289 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) [2022-12-12 20:19:47,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 20:19:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:47,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 20:19:47,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:19:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:47,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:19:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:47,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439097634] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 20:19:47,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 20:19:47,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-12 20:19:47,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256510601] [2022-12-12 20:19:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:19:47,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 20:19:47,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:19:47,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 20:19:47,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-12 20:19:47,523 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-12 20:19:47,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:47,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:19:47,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-12 20:19:47,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:19:47,616 INFO L130 PetriNetUnfolder]: 312/445 cut-off events. [2022-12-12 20:19:47,616 INFO L131 PetriNetUnfolder]: For 65/66 co-relation queries the response was YES. [2022-12-12 20:19:47,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 445 events. 312/445 cut-off events. For 65/66 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1393 event pairs, 79 based on Foata normal form. 1/312 useless extension candidates. Maximal degree in co-relation 1082. Up to 421 conditions per place. [2022-12-12 20:19:47,619 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 29 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2022-12-12 20:19:47,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 226 flow [2022-12-12 20:19:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 20:19:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 20:19:47,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2022-12-12 20:19:47,620 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2022-12-12 20:19:47,621 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2022-12-12 20:19:47,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 226 flow [2022-12-12 20:19:47,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 35 transitions, 226 flow [2022-12-12 20:19:47,623 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 226 flow [2022-12-12 20:19:47,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:47,623 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:19:47,623 INFO L214 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] [2022-12-12 20:19:47,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 20:19:47,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:19:47,828 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)] === [2022-12-12 20:19:47,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:19:47,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1071746546, now seen corresponding path program 1 times [2022-12-12 20:19:47,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:19:47,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537915] [2022-12-12 20:19:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:19:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 20:19:47,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:19:47,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537915] [2022-12-12 20:19:47,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:19:47,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169414972] [2022-12-12 20:19:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:47,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:19:47,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:19:47,957 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) [2022-12-12 20:19:47,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 20:19:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:48,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-12 20:19:48,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:19:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 20:19:48,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:19:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 20:19:48,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169414972] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 20:19:48,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 20:19:48,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2022-12-12 20:19:48,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26196349] [2022-12-12 20:19:48,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:19:48,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 20:19:48,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:19:48,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 20:19:48,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-12 20:19:48,180 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-12 20:19:48,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:48,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:19:48,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-12 20:19:48,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:19:48,319 INFO L130 PetriNetUnfolder]: 374/538 cut-off events. [2022-12-12 20:19:48,319 INFO L131 PetriNetUnfolder]: For 378/390 co-relation queries the response was YES. [2022-12-12 20:19:48,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 538 events. 374/538 cut-off events. For 378/390 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1638 event pairs, 28 based on Foata normal form. 12/425 useless extension candidates. Maximal degree in co-relation 1686. Up to 481 conditions per place. [2022-12-12 20:19:48,323 INFO L137 encePairwiseOnDemand]: 17/24 looper letters, 64 selfloop transitions, 11 changer transitions 0/76 dead transitions. [2022-12-12 20:19:48,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 76 transitions, 634 flow [2022-12-12 20:19:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 20:19:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 20:19:48,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 61 transitions. [2022-12-12 20:19:48,324 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3177083333333333 [2022-12-12 20:19:48,324 INFO L295 CegarLoopForPetriNet]: 30 programPoint places, 13 predicate places. [2022-12-12 20:19:48,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 76 transitions, 634 flow [2022-12-12 20:19:48,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 76 transitions, 634 flow [2022-12-12 20:19:48,327 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 76 transitions, 634 flow [2022-12-12 20:19:48,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 20:19:48,327 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:19:48,327 INFO L214 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] [2022-12-12 20:19:48,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 20:19:48,532 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,SelfDestructingSolverStorable2 [2022-12-12 20:19:48,533 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)] === [2022-12-12 20:19:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:19:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1266595511, now seen corresponding path program 1 times [2022-12-12 20:19:48,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:19:48,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54867010] [2022-12-12 20:19:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:48,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:19:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:49,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:19:49,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54867010] [2022-12-12 20:19:49,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54867010] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:19:49,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216764390] [2022-12-12 20:19:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:19:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:19:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:19:49,463 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) [2022-12-12 20:19:49,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 20:19:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:19:49,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-12 20:19:49,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:19:49,665 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 11 treesize of output 7 [2022-12-12 20:19:49,737 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 [2022-12-12 20:19:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 20:19:49,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-12-12 20:19:50,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 20:19:50,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-12-12 20:19:50,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 20:19:50,159 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 20:19:50,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 66 treesize of output 39 [2022-12-12 20:19:50,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:19:50,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:19:50,520 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_~max1~0 c_~max2~0)) (.cse1 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (or (forall ((v_ArrVal_157 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1))) (or (not (< c_~max3~0 .cse0)) (< c_~max2~0 .cse0)))) .cse2) (or (forall ((v_ArrVal_157 (Array Int Int))) (< c_~max3~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1))) (and (or .cse2 (< c_~max2~0 c_~max3~0)) (or (= c_~max1~0 c_~max3~0) (<= c_~max3~0 c_~max2~0)))) (forall ((v_ArrVal_157 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1))) (or (not (< c_~max3~0 .cse3)) (= c_~max1~0 .cse3) (<= .cse3 c_~max2~0)))))) is different from false [2022-12-12 20:19:50,605 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_~max1~0 c_~max2~0)) (.cse1 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (or (forall ((v_ArrVal_157 (Array Int Int)) (v_ArrVal_156 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_156) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1))) (or (< c_~max2~0 .cse0) (not (< c_~max3~0 .cse0))))) .cse2) (or (and (or .cse2 (< c_~max2~0 c_~max3~0)) (or (= c_~max1~0 c_~max3~0) (<= c_~max3~0 c_~max2~0))) (forall ((v_ArrVal_157 (Array Int Int)) (v_ArrVal_156 (Array Int Int))) (< c_~max3~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_156) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1)))) (forall ((v_ArrVal_157 (Array Int Int)) (v_ArrVal_156 (Array Int Int))) (let ((.cse3 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_156) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_157) c_~A~0.base) .cse1))) (or (<= .cse3 c_~max2~0) (not (< c_~max3~0 .cse3)) (= c_~max1~0 .cse3)))))) is different from false [2022-12-12 20:20:29,135 WARN L233 SmtUtils]: Spent 35.62s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 20:20:29,217 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 20:20:29,217 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 1 case distinctions, treesize of input 140 treesize of output 92 [2022-12-12 20:20:29,231 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 20:20:29,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5369 treesize of output 4863 [2022-12-12 20:20:29,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4833 treesize of output 4065 [2022-12-12 20:20:29,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4065 treesize of output 3681 [2022-12-12 20:20:29,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 20:20:29,319 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 3701 treesize of output 3389 Received shutdown request... [2022-12-12 20:33:59,694 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-12 20:33:59,697 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 20:33:59,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-12 20:33:59,706 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 [2022-12-12 20:33:59,707 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 20:33:59,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:33:59,903 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 24 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 ∨-2-1 context. [2022-12-12 20:33:59,906 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 20:33:59,907 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 20:33:59,907 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 20:33:59,908 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-12 20:33:59,933 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 20:33:59,934 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 20:33:59,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 08:33:59 BasicIcfg [2022-12-12 20:33:59,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 20:33:59,945 INFO L158 Benchmark]: Toolchain (without parser) took 858549.93ms. Allocated memory was 229.6MB in the beginning and 669.0MB in the end (delta: 439.4MB). Free memory was 205.0MB in the beginning and 458.1MB in the end (delta: -253.1MB). Peak memory consumption was 413.6MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,945 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 229.6MB. Free memory is still 205.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 20:33:59,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.56ms. Allocated memory is still 229.6MB. Free memory was 205.0MB in the beginning and 192.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.76ms. Allocated memory is still 229.6MB. Free memory was 192.5MB in the beginning and 190.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,948 INFO L158 Benchmark]: Boogie Preprocessor took 33.06ms. Allocated memory is still 229.6MB. Free memory was 190.5MB in the beginning and 188.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,949 INFO L158 Benchmark]: RCFGBuilder took 505.65ms. Allocated memory is still 229.6MB. Free memory was 188.9MB in the beginning and 168.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,949 INFO L158 Benchmark]: TraceAbstraction took 857747.88ms. Allocated memory was 229.6MB in the beginning and 669.0MB in the end (delta: 439.4MB). Free memory was 167.4MB in the beginning and 458.1MB in the end (delta: -290.7MB). Peak memory consumption was 375.8MB. Max. memory is 8.0GB. [2022-12-12 20:33:59,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 229.6MB. Free memory is still 205.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.56ms. Allocated memory is still 229.6MB. Free memory was 205.0MB in the beginning and 192.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.76ms. Allocated memory is still 229.6MB. Free memory was 192.5MB in the beginning and 190.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.06ms. Allocated memory is still 229.6MB. Free memory was 190.5MB in the beginning and 188.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 505.65ms. Allocated memory is still 229.6MB. Free memory was 188.9MB in the beginning and 168.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 857747.88ms. Allocated memory was 229.6MB in the beginning and 669.0MB in the end (delta: 439.4MB). Free memory was 167.4MB in the beginning and 458.1MB in the end (delta: -290.7MB). Peak memory consumption was 375.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 127 PlacesBefore, 30 PlacesAfterwards, 129 TransitionsBefore, 24 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 67 TrivialYvCompositions, 30 ConcurrentYvCompositions, 8 ChoiceCompositions, 105 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 670, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 674, independent: 670, independent conditional: 0, independent unconditional: 670, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 674, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 674, unknown conditional: 0, unknown unconditional: 674] , Statistics on independence cache: Total cache size (in pairs): 1066, Positive cache size: 1062, Positive conditional cache size: 0, Positive unconditional cache size: 1062, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 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 ∨-2-1 context. - TimeoutResultAtElement [Line: 94]: 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 24 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 ∨-2-1 context. - TimeoutResultAtElement [Line: 92]: 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 24 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 ∨-2-1 context. - TimeoutResultAtElement [Line: 93]: 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 24 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 ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 161 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: 857.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 11 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/9 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