/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -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-8d0d62b [2022-12-06 17:06:28,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:06:28,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:06:28,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:06:28,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:06:28,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:06:28,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:06:28,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:06:28,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:06:28,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:06:28,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:06:28,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:06:28,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:06:28,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:06:28,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:06:28,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:06:28,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:06:28,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:06:28,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:06:28,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:06:28,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:06:28,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:06:28,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:06:28,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:06:28,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:06:28,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:06:28,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:06:28,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:06:28,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:06:28,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:06:28,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:06:28,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:06:28,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:06:28,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:06:28,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:06:28,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:06:28,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:06:28,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:06:28,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:06:28,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:06:28,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:06:28,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:06:28,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:06:28,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:06:28,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:06:28,367 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:06:28,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:06:28,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:06:28,368 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:06:28,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:06:28,368 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:06:28,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:06:28,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:06:28,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:06:28,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:06:28,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:06:28,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:06:28,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:06:28,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:06:28,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:06:28,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:06:28,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:06:28,655 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:06:28,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-12-06 17:06:29,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:06:29,709 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:06:29,710 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-12-06 17:06:29,717 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f39cbeaca/51f57c2042774833b3bd36bb82fe1fc0/FLAGec8116171 [2022-12-06 17:06:29,726 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f39cbeaca/51f57c2042774833b3bd36bb82fe1fc0 [2022-12-06 17:06:29,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:06:29,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:06:29,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:06:29,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:06:29,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:06:29,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea3e0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29, skipping insertion in model container [2022-12-06 17:06:29,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:06:29,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:06:29,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:06:29,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:06:29,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:06:29,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:06:29,856 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] [2022-12-06 17:06:29,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:06:29,866 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:06:29,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:06:29,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:06:29,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:06:29,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:06:29,883 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] [2022-12-06 17:06:29,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:06:29,910 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:06:29,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29 WrapperNode [2022-12-06 17:06:29,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:06:29,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:06:29,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:06:29,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:06:29,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,963 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 252 [2022-12-06 17:06:29,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:06:29,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:06:29,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:06:29,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:06:29,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:29,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:06:29,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:06:29,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:06:29,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:06:29,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (1/1) ... [2022-12-06 17:06:30,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:06:30,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:06:30,032 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 17:06:30,059 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 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:06:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:06:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:06:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:06:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:06:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:06:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:06:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:06:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:06:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:06:30,070 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 17:06:30,191 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:06:30,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:06:30,526 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:06:30,825 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:06:30,825 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:06:30,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:06:30 BoogieIcfgContainer [2022-12-06 17:06:30,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:06:30,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:06:30,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:06:30,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:06:30,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:06:29" (1/3) ... [2022-12-06 17:06:30,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510b379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:06:30, skipping insertion in model container [2022-12-06 17:06:30,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:29" (2/3) ... [2022-12-06 17:06:30,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510b379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:06:30, skipping insertion in model container [2022-12-06 17:06:30,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:06:30" (3/3) ... [2022-12-06 17:06:30,835 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2022-12-06 17:06:30,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:06:30,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:06:30,848 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:06:30,921 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 17:06:30,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 226 flow [2022-12-06 17:06:31,005 INFO L130 PetriNetUnfolder]: 3/103 cut-off events. [2022-12-06 17:06:31,006 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:06:31,009 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. [2022-12-06 17:06:31,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 105 transitions, 226 flow [2022-12-06 17:06:31,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 95 transitions, 202 flow [2022-12-06 17:06:31,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:06:31,031 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d99fe2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:06:31,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 17:06:31,065 INFO L130 PetriNetUnfolder]: 3/94 cut-off events. [2022-12-06 17:06:31,065 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:06:31,066 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:31,066 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:31,067 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 17:06:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1412488895, now seen corresponding path program 1 times [2022-12-06 17:06:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:31,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675522611] [2022-12-06 17:06:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:06:34,133 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 17:06:34,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:06:34,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675522611] [2022-12-06 17:06:34,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675522611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:06:34,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:06:34,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 17:06:34,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664740464] [2022-12-06 17:06:34,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:06:34,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 17:06:34,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:06:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 17:06:34,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-06 17:06:34,164 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 105 [2022-12-06 17:06:34,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 202 flow. Second operand has 12 states, 12 states have (on average 63.166666666666664) internal successors, (758), 12 states have internal predecessors, (758), 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 17:06:34,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:06:34,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 105 [2022-12-06 17:06:34,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:06:35,288 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-06 17:06:35,288 INFO L131 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2022-12-06 17:06:35,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 125 events. 2/125 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 7/127 useless extension candidates. Maximal degree in co-relation 36. Up to 24 conditions per place. [2022-12-06 17:06:35,289 INFO L137 encePairwiseOnDemand]: 88/105 looper letters, 37 selfloop transitions, 1 changer transitions 21/110 dead transitions. [2022-12-06 17:06:35,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 110 transitions, 359 flow [2022-12-06 17:06:35,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:06:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:06:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 966 transitions. [2022-12-06 17:06:35,307 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6133333333333333 [2022-12-06 17:06:35,310 INFO L294 CegarLoopForPetriNet]: 99 programPoint places, 14 predicate places. [2022-12-06 17:06:35,310 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 359 flow [2022-12-06 17:06:35,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.166666666666664) internal successors, (758), 12 states have internal predecessors, (758), 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 17:06:35,311 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:35,311 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:35,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:06:35,311 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 17:06:35,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:35,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1729522805, now seen corresponding path program 2 times [2022-12-06 17:06:35,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:35,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405785992] [2022-12-06 17:06:35,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:35,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:06:37,874 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 17:06:37,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:06:37,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405785992] [2022-12-06 17:06:37,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405785992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:06:37,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:06:37,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 17:06:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282679612] [2022-12-06 17:06:37,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:06:37,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 17:06:37,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:06:37,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 17:06:37,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-06 17:06:37,877 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 105 [2022-12-06 17:06:37,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 359 flow. Second operand has 12 states, 12 states have (on average 63.166666666666664) internal successors, (758), 12 states have internal predecessors, (758), 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 17:06:37,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:06:37,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 105 [2022-12-06 17:06:37,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:06:39,105 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-06 17:06:39,105 INFO L131 PetriNetUnfolder]: For 52/56 co-relation queries the response was YES. [2022-12-06 17:06:39,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 123 events. 2/123 cut-off events. For 52/56 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 44. Up to 27 conditions per place. [2022-12-06 17:06:39,106 INFO L137 encePairwiseOnDemand]: 91/105 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2022-12-06 17:06:39,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 109 transitions, 482 flow [2022-12-06 17:06:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:06:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:06:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 959 transitions. [2022-12-06 17:06:39,126 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6088888888888889 [2022-12-06 17:06:39,127 INFO L294 CegarLoopForPetriNet]: 99 programPoint places, 25 predicate places. [2022-12-06 17:06:39,127 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 109 transitions, 482 flow [2022-12-06 17:06:39,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.166666666666664) internal successors, (758), 12 states have internal predecessors, (758), 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 17:06:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 17:06:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 17:06:39,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 17:06:39,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:06:39,131 INFO L458 BasicCegarLoop]: Path program histogram: [2] [2022-12-06 17:06:39,133 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:06:39,133 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:06:39,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:06:39 BasicIcfg [2022-12-06 17:06:39,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:06:39,137 INFO L158 Benchmark]: Toolchain (without parser) took 9408.01ms. Allocated memory was 207.6MB in the beginning and 511.7MB in the end (delta: 304.1MB). Free memory was 182.2MB in the beginning and 363.3MB in the end (delta: -181.0MB). Peak memory consumption was 122.8MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,137 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory was 184.1MB in the beginning and 183.9MB in the end (delta: 223.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:06:39,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.02ms. Allocated memory is still 207.6MB. Free memory was 182.0MB in the beginning and 169.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.40ms. Allocated memory is still 207.6MB. Free memory was 169.9MB in the beginning and 167.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,138 INFO L158 Benchmark]: Boogie Preprocessor took 32.84ms. Allocated memory is still 207.6MB. Free memory was 167.3MB in the beginning and 165.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,139 INFO L158 Benchmark]: RCFGBuilder took 829.52ms. Allocated memory is still 207.6MB. Free memory was 165.7MB in the beginning and 72.9MB in the end (delta: 92.8MB). Peak memory consumption was 92.3MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,139 INFO L158 Benchmark]: TraceAbstraction took 8308.05ms. Allocated memory was 207.6MB in the beginning and 511.7MB in the end (delta: 304.1MB). Free memory was 71.9MB in the beginning and 363.3MB in the end (delta: -291.4MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-12-06 17:06:39,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory was 184.1MB in the beginning and 183.9MB in the end (delta: 223.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.02ms. Allocated memory is still 207.6MB. Free memory was 182.0MB in the beginning and 169.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.40ms. Allocated memory is still 207.6MB. Free memory was 169.9MB in the beginning and 167.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.84ms. Allocated memory is still 207.6MB. Free memory was 167.3MB in the beginning and 165.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 829.52ms. Allocated memory is still 207.6MB. Free memory was 165.7MB in the beginning and 72.9MB in the end (delta: 92.8MB). Peak memory consumption was 92.3MB. Max. memory is 8.0GB. * TraceAbstraction took 8308.05ms. Allocated memory was 207.6MB in the beginning and 511.7MB in the end (delta: 304.1MB). Free memory was 71.9MB in the beginning and 363.3MB in the end (delta: -291.4MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 8.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 244 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 69 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=2, InterpolantAutomatonStates: 30, 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, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 3313 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 17:06:39,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...