/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 10:14:03,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 10:14:03,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 10:14:03,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 10:14:03,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 10:14:03,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 10:14:03,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 10:14:03,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 10:14:03,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 10:14:03,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 10:14:03,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 10:14:03,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 10:14:03,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 10:14:03,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 10:14:03,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 10:14:03,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 10:14:03,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 10:14:03,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 10:14:03,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 10:14:03,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 10:14:03,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 10:14:03,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 10:14:03,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 10:14:03,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 10:14:03,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 10:14:03,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 10:14:03,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 10:14:03,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 10:14:03,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 10:14:03,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 10:14:03,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 10:14:03,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 10:14:03,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 10:14:03,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 10:14:03,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 10:14:03,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 10:14:03,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 10:14:03,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 10:14:03,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 10:14:03,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 10:14:03,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 10:14:03,866 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-13 10:14:03,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 10:14:03,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 10:14:03,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 10:14:03,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 10:14:03,898 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 10:14:03,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 10:14:03,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 10:14:03,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 10:14:03,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 10:14:03,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 10:14:03,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 10:14:03,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 10:14:03,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 10:14:03,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 10:14:03,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 10:14:03,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:14:03,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 10:14:03,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 10:14:03,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 10:14:03,902 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 10:14:03,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 10:14:03,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 10:14:03,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 10:14:03,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 10:14:04,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 10:14:04,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 10:14:04,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 10:14:04,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 10:14:04,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 10:14:04,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-12-13 10:14:05,392 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:14:05,561 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:14:05,561 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-12-13 10:14:05,567 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d821cf758/699f74d4afda4c94952de7fb7b6b1c9c/FLAG70dd9415f [2022-12-13 10:14:05,578 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d821cf758/699f74d4afda4c94952de7fb7b6b1c9c [2022-12-13 10:14:05,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:14:05,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 10:14:05,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:14:05,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:14:05,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:14:05,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f29ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05, skipping insertion in model container [2022-12-13 10:14:05,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:14:05,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:14:05,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 10:14:05,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 10:14:05,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 10:14:05,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 10:14:05,793 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/chl-collitem-symm.wvr.c[2986,2999] [2022-12-13 10:14:05,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:14:05,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:14:05,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 10:14:05,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 10:14:05,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 10:14:05,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 10:14:05,848 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/chl-collitem-symm.wvr.c[2986,2999] [2022-12-13 10:14:05,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:14:05,863 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:14:05,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05 WrapperNode [2022-12-13 10:14:05,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:14:05,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:14:05,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:14:05,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:14:05,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,925 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 252 [2022-12-13 10:14:05,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:14:05,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:14:05,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:14:05,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:14:05,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:14:05,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:14:05,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:14:05,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:14:05,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (1/1) ... [2022-12-13 10:14:05,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:14:05,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 10:14:06,000 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) [2022-12-13 10:14:06,011 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 [2022-12-13 10:14:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:14:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 10:14:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 10:14:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 10:14:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 10:14:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:14:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 10:14:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 10:14:06,044 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 10:14:06,119 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 10:14:06,121 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:14:06,594 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 10:14:06,997 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:14:06,998 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 10:14:07,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:14:06 BoogieIcfgContainer [2022-12-13 10:14:07,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:14:07,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 10:14:07,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 10:14:07,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 10:14:07,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:14:05" (1/3) ... [2022-12-13 10:14:07,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81ca05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:14:07, skipping insertion in model container [2022-12-13 10:14:07,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:05" (2/3) ... [2022-12-13 10:14:07,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81ca05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:14:07, skipping insertion in model container [2022-12-13 10:14:07,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:14:06" (3/3) ... [2022-12-13 10:14:07,006 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2022-12-13 10:14:07,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 10:14:07,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 10:14:07,021 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 10:14:07,079 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 10:14:07,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 226 flow [2022-12-13 10:14:07,174 INFO L130 PetriNetUnfolder]: 3/103 cut-off events. [2022-12-13 10:14:07,174 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 10:14:07,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 103 events. 3/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-12-13 10:14:07,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 105 transitions, 226 flow [2022-12-13 10:14:07,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 95 transitions, 202 flow [2022-12-13 10:14:07,183 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 10:14:07,201 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 95 transitions, 202 flow [2022-12-13 10:14:07,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 202 flow [2022-12-13 10:14:07,226 INFO L130 PetriNetUnfolder]: 3/95 cut-off events. [2022-12-13 10:14:07,226 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 10:14:07,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 3/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-13 10:14:07,228 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 95 transitions, 202 flow [2022-12-13 10:14:07,228 INFO L226 LiptonReduction]: Number of co-enabled transitions 108 [2022-12-13 10:14:14,036 INFO L241 LiptonReduction]: Total number of compositions: 84 [2022-12-13 10:14:14,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 10:14:14,052 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35db26c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 10:14:14,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 10:14:14,058 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 10:14:14,058 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 10:14:14,059 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 10:14:14,059 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:14:14,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 10:14:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:14:14,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1687308492, now seen corresponding path program 1 times [2022-12-13 10:14:14,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:14:14,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756659755] [2022-12-13 10:14:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:14:14,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:14:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:14:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:14:17,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:14:17,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756659755] [2022-12-13 10:14:17,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756659755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:14:17,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:14:17,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:14:17,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703386426] [2022-12-13 10:14:17,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:14:17,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 10:14:17,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:14:17,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 10:14:17,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 10:14:17,060 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-13 10:14:17,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 10:14:17,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 10:14:17,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-13 10:14:17,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 10:14:17,211 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2022-12-13 10:14:17,212 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 10:14:17,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2022-12-13 10:14:17,213 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions. [2022-12-13 10:14:17,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 97 flow [2022-12-13 10:14:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 10:14:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 10:14:17,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-12-13 10:14:17,222 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2022-12-13 10:14:17,224 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 20 transitions. [2022-12-13 10:14:17,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 97 flow [2022-12-13 10:14:17,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 10:14:17,228 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 33 flow [2022-12-13 10:14:17,229 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2022-12-13 10:14:17,231 INFO L295 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2022-12-13 10:14:17,232 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 10:14:17,232 INFO L89 Accepts]: Start accepts. Operand has 19 places, 11 transitions, 33 flow [2022-12-13 10:14:17,234 INFO L95 Accepts]: Finished accepts. [2022-12-13 10:14:17,234 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 10:14:17,235 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 11 transitions, 33 flow [2022-12-13 10:14:17,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 18 places, 11 transitions, 33 flow [2022-12-13 10:14:17,242 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-13 10:14:17,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 10:14:17,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 14 events. 0/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 10:14:17,244 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 11 transitions, 33 flow [2022-12-13 10:14:17,244 INFO L226 LiptonReduction]: Number of co-enabled transitions 8 [2022-12-13 10:14:17,244 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 10:14:17,246 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-13 10:14:17,246 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 33 flow [2022-12-13 10:14:17,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 10:14:17,247 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 10:14:17,247 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:14:17,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 10:14:17,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 10:14:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:14:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1918180592, now seen corresponding path program 2 times [2022-12-13 10:14:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:14:17,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468929451] [2022-12-13 10:14:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:14:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:14:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:14:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:14:18,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:14:18,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468929451] [2022-12-13 10:14:18,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468929451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:14:18,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:14:18,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:14:18,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361176425] [2022-12-13 10:14:18,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:14:18,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 10:14:18,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:14:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 10:14:18,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 10:14:18,966 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-13 10:14:18,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 33 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 10:14:18,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 10:14:18,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-13 10:14:18,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 10:14:19,097 INFO L130 PetriNetUnfolder]: 5/23 cut-off events. [2022-12-13 10:14:19,098 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 10:14:19,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 23 events. 5/23 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 57. Up to 15 conditions per place. [2022-12-13 10:14:19,098 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2022-12-13 10:14:19,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 73 flow [2022-12-13 10:14:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 10:14:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 10:14:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 10:14:19,100 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36363636363636365 [2022-12-13 10:14:19,100 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 33 flow. Second operand 4 states and 16 transitions. [2022-12-13 10:14:19,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 73 flow [2022-12-13 10:14:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 10:14:19,101 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-12-13 10:14:19,101 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2022-12-13 10:14:19,101 INFO L295 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2022-12-13 10:14:19,102 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 10:14:19,102 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 0 transitions, 0 flow [2022-12-13 10:14:19,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 10:14:19,102 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 10:14:19,102 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 10:14:19,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 10:14:19,103 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 10:14:19,103 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 10:14:19,103 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 10:14:19,104 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 10:14:19,104 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 10:14:19,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 10:14:19,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 10:14:19,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 10:14:19,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 10:14:19,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 10:14:19,107 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2022-12-13 10:14:19,109 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 10:14:19,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 10:14:19,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:14:19 BasicIcfg [2022-12-13 10:14:19,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 10:14:19,113 INFO L158 Benchmark]: Toolchain (without parser) took 13531.43ms. Allocated memory was 186.6MB in the beginning and 357.6MB in the end (delta: 170.9MB). Free memory was 145.9MB in the beginning and 277.1MB in the end (delta: -131.2MB). Peak memory consumption was 40.2MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,113 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 10:14:19,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.27ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 134.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.37ms. Allocated memory is still 186.6MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,114 INFO L158 Benchmark]: Boogie Preprocessor took 47.06ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,114 INFO L158 Benchmark]: RCFGBuilder took 1026.29ms. Allocated memory is still 186.6MB. Free memory was 129.7MB in the beginning and 136.5MB in the end (delta: -6.9MB). Peak memory consumption was 75.4MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,115 INFO L158 Benchmark]: TraceAbstraction took 12110.56ms. Allocated memory was 186.6MB in the beginning and 357.6MB in the end (delta: 170.9MB). Free memory was 135.5MB in the beginning and 277.1MB in the end (delta: -141.6MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. [2022-12-13 10:14:19,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 280.27ms. Allocated memory is still 186.6MB. Free memory was 145.9MB in the beginning and 134.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.37ms. Allocated memory is still 186.6MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.06ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1026.29ms. Allocated memory is still 186.6MB. Free memory was 129.7MB in the beginning and 136.5MB in the end (delta: -6.9MB). Peak memory consumption was 75.4MB. Max. memory is 8.0GB. * TraceAbstraction took 12110.56ms. Allocated memory was 186.6MB in the beginning and 357.6MB in the end (delta: 170.9MB). Free memory was 135.5MB in the beginning and 277.1MB in the end (delta: -141.6MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 99 PlacesBefore, 18 PlacesAfterwards, 95 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 70 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 47, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 47, unknown conditional: 47, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 18 PlacesBefore, 18 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 87]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 3 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: 12.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 10:14:19,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...