/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:57:05,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:57:05,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:57:05,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:57:05,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:57:05,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:57:05,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:57:05,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:57:05,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:57:05,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:57:05,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:57:05,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:57:05,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:57:05,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:57:05,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:57:05,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:57:05,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:57:05,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:57:05,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:57:05,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:57:05,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:57:05,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:57:05,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:57:05,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:57:05,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 01:57:05,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 01:57:05,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 01:57:05,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 01:57:05,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 01:57:05,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 01:57:05,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 01:57:05,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 01:57:05,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 01:57:05,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 01:57:05,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 01:57:05,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 01:57:05,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 01:57:05,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 01:57:05,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:57:05,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:57:05,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:57:05,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 01:57:06,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:57:06,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:57:06,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:57:06,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:57:06,002 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:57:06,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:57:06,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:57:06,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:57:06,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:57:06,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:57:06,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:57:06,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:57:06,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:57:06,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:57:06,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:57:06,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:57:06,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:57:06,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:57:06,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:57:06,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:57:06,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:57:06,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:57:06,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:57:06,346 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:57:06,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-12-06 01:57:07,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:57:07,766 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:57:07,767 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-12-06 01:57:07,774 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a6d84ad/516f51a7350a48f49e44467826688f10/FLAG004852bbd [2022-12-06 01:57:07,794 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a6d84ad/516f51a7350a48f49e44467826688f10 [2022-12-06 01:57:07,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:57:07,798 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:57:07,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:57:07,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:57:07,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:57:07,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:57:07" (1/1) ... [2022-12-06 01:57:07,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3376029c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:07, skipping insertion in model container [2022-12-06 01:57:07,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:57:07" (1/1) ... [2022-12-06 01:57:07,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:57:07,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:57:08,021 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-file-item-symm.wvr.c[2495,2508] [2022-12-06 01:57:08,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:57:08,042 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:57:08,079 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-file-item-symm.wvr.c[2495,2508] [2022-12-06 01:57:08,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:57:08,096 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:57:08,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08 WrapperNode [2022-12-06 01:57:08,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:57:08,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:57:08,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:57:08,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:57:08,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,154 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 142 [2022-12-06 01:57:08,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:57:08,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:57:08,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:57:08,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:57:08,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:57:08,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:57:08,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:57:08,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:57:08,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (1/1) ... [2022-12-06 01:57:08,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:57:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:57:08,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 01:57:08,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 01:57:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 01:57:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 01:57:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:57:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:57:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:57:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 01:57:08,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:57:08,248 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 01:57:08,331 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:57:08,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:57:08,547 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:57:08,555 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:57:08,555 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:57:08,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:57:08 BoogieIcfgContainer [2022-12-06 01:57:08,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:57:08,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:57:08,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:57:08,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:57:08,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:57:07" (1/3) ... [2022-12-06 01:57:08,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f4f5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:57:08, skipping insertion in model container [2022-12-06 01:57:08,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:57:08" (2/3) ... [2022-12-06 01:57:08,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f4f5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:57:08, skipping insertion in model container [2022-12-06 01:57:08,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:57:08" (3/3) ... [2022-12-06 01:57:08,564 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-12-06 01:57:08,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:57:08,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:57:08,598 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:57:08,715 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 01:57:08,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 169 transitions, 354 flow [2022-12-06 01:57:08,824 INFO L130 PetriNetUnfolder]: 15/167 cut-off events. [2022-12-06 01:57:08,824 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 01:57:08,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 15/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-06 01:57:08,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 169 transitions, 354 flow [2022-12-06 01:57:08,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 159 transitions, 330 flow [2022-12-06 01:57:08,842 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:57:08,856 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 159 transitions, 330 flow [2022-12-06 01:57:08,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 159 transitions, 330 flow [2022-12-06 01:57:08,896 INFO L130 PetriNetUnfolder]: 15/159 cut-off events. [2022-12-06 01:57:08,896 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 01:57:08,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 15/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 303 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-06 01:57:08,906 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 159 transitions, 330 flow [2022-12-06 01:57:08,906 INFO L188 LiptonReduction]: Number of co-enabled transitions 5192 [2022-12-06 01:57:14,731 INFO L203 LiptonReduction]: Total number of compositions: 144 [2022-12-06 01:57:14,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:57:14,770 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;@5e2bd858, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:57:14,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 01:57:14,775 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 01:57:14,775 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 01:57:14,777 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:57:14,778 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:57:14,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:57:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:57:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash -789072910, now seen corresponding path program 1 times [2022-12-06 01:57:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:57:14,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249334809] [2022-12-06 01:57:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:57:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:57:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:57:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:57:16,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:57:16,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249334809] [2022-12-06 01:57:16,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249334809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:57:16,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:57:16,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:57:16,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857969578] [2022-12-06 01:57:16,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:57:16,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:57:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:57:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:57:16,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:57:16,223 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-06 01:57:16,225 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) [2022-12-06 01:57:16,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:57:16,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-06 01:57:16,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:57:16,393 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2022-12-06 01:57:16,394 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 01:57:16,394 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 56 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2022-12-06 01:57:16,395 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 10 selfloop transitions, 3 changer transitions 8/21 dead transitions. [2022-12-06 01:57:16,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 105 flow [2022-12-06 01:57:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 01:57:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 01:57:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-12-06 01:57:16,407 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-06 01:57:16,412 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2022-12-06 01:57:16,414 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:57:16,414 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 21 transitions, 105 flow [2022-12-06 01:57:16,418 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 21 transitions, 105 flow [2022-12-06 01:57:16,418 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:57:16,419 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:57:16,421 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 01:57:16,421 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 21 transitions, 105 flow [2022-12-06 01:57:16,421 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) [2022-12-06 01:57:16,422 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:57:16,422 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:57:16,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:57:16,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:57:16,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:57:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1568447700, now seen corresponding path program 2 times [2022-12-06 01:57:16,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:57:16,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859979836] [2022-12-06 01:57:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:57:16,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:57:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:57:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:57:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:57:17,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859979836] [2022-12-06 01:57:17,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859979836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:57:17,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:57:17,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:57:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004847282] [2022-12-06 01:57:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:57:17,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:57:17,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:57:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:57:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:57:17,283 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-06 01:57:17,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 21 transitions, 105 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) [2022-12-06 01:57:17,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:57:17,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-06 01:57:17,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:57:17,462 INFO L130 PetriNetUnfolder]: 8/31 cut-off events. [2022-12-06 01:57:17,462 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 01:57:17,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 31 events. 8/31 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 66. Up to 15 conditions per place. [2022-12-06 01:57:17,463 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2022-12-06 01:57:17,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 162 flow [2022-12-06 01:57:17,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 01:57:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 01:57:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-12-06 01:57:17,465 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2022-12-06 01:57:17,466 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2022-12-06 01:57:17,466 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:57:17,466 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 23 transitions, 162 flow [2022-12-06 01:57:17,467 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 23 transitions, 162 flow [2022-12-06 01:57:17,467 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:57:17,467 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:57:17,468 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 01:57:17,471 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 162 flow [2022-12-06 01:57:17,471 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) [2022-12-06 01:57:17,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 01:57:17,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 01:57:17,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 01:57:17,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:57:17,475 INFO L458 BasicCegarLoop]: Path program histogram: [2] [2022-12-06 01:57:17,478 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:57:17,478 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:57:17,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:57:17 BasicIcfg [2022-12-06 01:57:17,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:57:17,486 INFO L158 Benchmark]: Toolchain (without parser) took 9687.67ms. Allocated memory was 178.3MB in the beginning and 311.4MB in the end (delta: 133.2MB). Free memory was 153.6MB in the beginning and 139.2MB in the end (delta: 14.4MB). Peak memory consumption was 148.7MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,486 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:57:17,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.64ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 142.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.76ms. Allocated memory is still 178.3MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,491 INFO L158 Benchmark]: Boogie Preprocessor took 22.66ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 138.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,491 INFO L158 Benchmark]: RCFGBuilder took 377.11ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 122.7MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,492 INFO L158 Benchmark]: TraceAbstraction took 8926.74ms. Allocated memory was 178.3MB in the beginning and 311.4MB in the end (delta: 133.2MB). Free memory was 121.6MB in the beginning and 139.2MB in the end (delta: -17.5MB). Peak memory consumption was 117.2MB. Max. memory is 8.0GB. [2022-12-06 01:57:17,493 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 178.3MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.64ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 142.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.76ms. Allocated memory is still 178.3MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.66ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 138.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 377.11ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 122.7MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8926.74ms. Allocated memory was 178.3MB in the beginning and 311.4MB in the end (delta: 133.2MB). Free memory was 121.6MB in the beginning and 139.2MB in the end (delta: -17.5MB). Peak memory consumption was 117.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 151 PlacesBefore, 18 PlacesAfterwards, 159 TransitionsBefore, 11 TransitionsAfterwards, 5192 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 52 TrivialYvCompositions, 81 ConcurrentYvCompositions, 11 ChoiceCompositions, 144 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3613, independent: 3613, independent conditional: 3613, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3613, independent: 3613, independent conditional: 0, independent unconditional: 3613, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3613, independent: 3613, independent conditional: 0, independent unconditional: 3613, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3613, independent: 3613, independent conditional: 0, independent unconditional: 3613, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3191, independent: 3191, independent conditional: 0, independent unconditional: 3191, 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: 3191, independent: 3191, independent conditional: 0, independent unconditional: 3191, 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: 3613, independent: 422, independent conditional: 0, independent unconditional: 422, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3191, unknown conditional: 0, unknown unconditional: 3191] , Statistics on independence cache: Total cache size (in pairs): 7181, Positive cache size: 7181, Positive conditional cache size: 0, Positive unconditional cache size: 7181, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 22 PlacesBefore, 22 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 25 PlacesBefore, 25 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 74]: 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, 235 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: 8.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1532 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! [2022-12-06 01:57:17,517 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...