/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/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:15:18,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:15:18,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:15:19,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:15:19,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:15:19,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:15:19,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:15:19,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:15:19,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:15:19,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:15:19,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:15:19,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:15:19,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:15:19,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:15:19,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:15:19,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:15:19,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:15:19,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:15:19,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:15:19,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:15:19,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:15:19,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:15:19,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:15:19,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:15:19,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:15:19,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:15:19,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:15:19,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:15:19,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:15:19,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:15:19,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:15:19,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:15:19,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:15:19,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:15:19,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:15:19,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:15:19,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:15:19,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:15:19,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:15:19,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:15:19,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:15:19,060 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 16:15:19,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:15:19,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:15:19,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:15:19,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:15:19,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:15:19,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:15:19,090 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:15:19,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:15:19,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:15:19,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:15:19,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:15:19,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:15:19,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:15:19,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:15:19,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:15:19,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:15:19,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:15:19,093 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:15:19,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:15:19,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:15:19,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:15:19,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:15:19,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:15:19,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:15:19,393 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:15:19,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-12-06 16:15:20,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:15:20,595 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:15:20,595 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-12-06 16:15:20,616 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d636a13/e2b0d95c659b4b99845ce02210ece1d2/FLAG7d0d6da79 [2022-12-06 16:15:20,628 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d636a13/e2b0d95c659b4b99845ce02210ece1d2 [2022-12-06 16:15:20,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:15:20,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:15:20,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:15:20,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:15:20,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:15:20,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:15:20" (1/1) ... [2022-12-06 16:15:20,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd22452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:20, skipping insertion in model container [2022-12-06 16:15:20,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:15:20" (1/1) ... [2022-12-06 16:15:20,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:15:20,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:15:20,828 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 16:15:20,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:20,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:20,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:20,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:20,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:20,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:20,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:20,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:20,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:20,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:20,946 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-06 16:15:20,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:15:20,964 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:15:20,982 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 16:15:21,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:21,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:21,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:21,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:21,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:21,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:21,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:21,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:21,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:15:21,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:15:21,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-06 16:15:21,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:15:21,039 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:15:21,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21 WrapperNode [2022-12-06 16:15:21,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:15:21,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:15:21,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:15:21,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:15:21,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,094 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 114 [2022-12-06 16:15:21,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:15:21,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:15:21,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:15:21,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:15:21,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:15:21,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:15:21,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:15:21,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:15:21,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (1/1) ... [2022-12-06 16:15:21,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:15:21,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:15:21,157 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 16:15:21,177 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 16:15:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:15:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:15:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:15:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:15:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-12-06 16:15:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:15:21,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:15:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-12-06 16:15:21,189 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-12-06 16:15:21,190 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 16:15:21,341 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:15:21,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:15:21,489 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:15:21,509 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:15:21,509 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:15:21,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:15:21 BoogieIcfgContainer [2022-12-06 16:15:21,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:15:21,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:15:21,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:15:21,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:15:21,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:15:20" (1/3) ... [2022-12-06 16:15:21,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f83991e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:15:21, skipping insertion in model container [2022-12-06 16:15:21,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:15:21" (2/3) ... [2022-12-06 16:15:21,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f83991e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:15:21, skipping insertion in model container [2022-12-06 16:15:21,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:15:21" (3/3) ... [2022-12-06 16:15:21,516 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-12-06 16:15:21,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:15:21,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:15:21,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:15:21,604 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 16:15:21,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 248 flow [2022-12-06 16:15:21,694 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-06 16:15:21,694 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 16:15:21,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 104 events. 2/104 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-06 16:15:21,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 108 transitions, 248 flow [2022-12-06 16:15:21,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 91 transitions, 203 flow [2022-12-06 16:15:21,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:15:21,719 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;@4daa546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:15:21,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:15:21,741 INFO L130 PetriNetUnfolder]: 1/55 cut-off events. [2022-12-06 16:15:21,742 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:15:21,742 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:21,742 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] [2022-12-06 16:15:21,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash 573228764, now seen corresponding path program 1 times [2022-12-06 16:15:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:21,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202377613] [2022-12-06 16:15:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:22,120 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 16:15:22,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:22,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202377613] [2022-12-06 16:15:22,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202377613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:22,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:22,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:15:22,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159638135] [2022-12-06 16:15:22,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:22,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:15:22,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:22,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:15:22,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:15:22,163 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-12-06 16:15:22,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 91 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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 16:15:22,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:22,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-12-06 16:15:22,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:23,235 INFO L130 PetriNetUnfolder]: 3826/7930 cut-off events. [2022-12-06 16:15:23,235 INFO L131 PetriNetUnfolder]: For 1855/1855 co-relation queries the response was YES. [2022-12-06 16:15:23,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14580 conditions, 7930 events. 3826/7930 cut-off events. For 1855/1855 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 70408 event pairs, 1153 based on Foata normal form. 418/7992 useless extension candidates. Maximal degree in co-relation 13857. Up to 2013 conditions per place. [2022-12-06 16:15:23,292 INFO L137 encePairwiseOnDemand]: 97/108 looper letters, 109 selfloop transitions, 24 changer transitions 4/198 dead transitions. [2022-12-06 16:15:23,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 198 transitions, 763 flow [2022-12-06 16:15:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:15:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:15:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 921 transitions. [2022-12-06 16:15:23,307 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2022-12-06 16:15:23,310 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 9 predicate places. [2022-12-06 16:15:23,310 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 198 transitions, 763 flow [2022-12-06 16:15:23,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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 16:15:23,310 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:23,310 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] [2022-12-06 16:15:23,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:15:23,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash 863878095, now seen corresponding path program 1 times [2022-12-06 16:15:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:23,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937075480] [2022-12-06 16:15:23,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:23,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:23,418 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 16:15:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:23,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937075480] [2022-12-06 16:15:23,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937075480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:23,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:23,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:15:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317285135] [2022-12-06 16:15:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:23,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:15:23,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:23,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:15:23,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:15:23,421 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 108 [2022-12-06 16:15:23,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 198 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 16:15:23,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:23,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 108 [2022-12-06 16:15:23,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:24,193 INFO L130 PetriNetUnfolder]: 4297/9142 cut-off events. [2022-12-06 16:15:24,193 INFO L131 PetriNetUnfolder]: For 6618/6926 co-relation queries the response was YES. [2022-12-06 16:15:24,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20251 conditions, 9142 events. 4297/9142 cut-off events. For 6618/6926 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 85563 event pairs, 1136 based on Foata normal form. 833/9515 useless extension candidates. Maximal degree in co-relation 19248. Up to 2195 conditions per place. [2022-12-06 16:15:24,246 INFO L137 encePairwiseOnDemand]: 102/108 looper letters, 91 selfloop transitions, 20 changer transitions 0/237 dead transitions. [2022-12-06 16:15:24,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 237 transitions, 1219 flow [2022-12-06 16:15:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:15:24,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:15:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2022-12-06 16:15:24,248 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2022-12-06 16:15:24,248 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-12-06 16:15:24,248 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 237 transitions, 1219 flow [2022-12-06 16:15:24,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 16:15:24,249 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:24,249 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] [2022-12-06 16:15:24,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:15:24,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:24,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1630665507, now seen corresponding path program 2 times [2022-12-06 16:15:24,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:24,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371112649] [2022-12-06 16:15:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:24,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:24,397 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 16:15:24,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371112649] [2022-12-06 16:15:24,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371112649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:24,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:24,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 16:15:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638768115] [2022-12-06 16:15:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:24,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 16:15:24,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:24,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 16:15:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 16:15:24,400 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-12-06 16:15:24,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 237 transitions, 1219 flow. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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 16:15:24,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:24,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-12-06 16:15:24,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:25,154 INFO L130 PetriNetUnfolder]: 4394/10079 cut-off events. [2022-12-06 16:15:25,154 INFO L131 PetriNetUnfolder]: For 14247/15170 co-relation queries the response was YES. [2022-12-06 16:15:25,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25486 conditions, 10079 events. 4394/10079 cut-off events. For 14247/15170 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 103143 event pairs, 649 based on Foata normal form. 1046/10711 useless extension candidates. Maximal degree in co-relation 13582. Up to 1796 conditions per place. [2022-12-06 16:15:25,279 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 109 selfloop transitions, 71 changer transitions 35/340 dead transitions. [2022-12-06 16:15:25,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 340 transitions, 2400 flow [2022-12-06 16:15:25,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:15:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:15:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 490 transitions. [2022-12-06 16:15:25,281 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2022-12-06 16:15:25,282 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2022-12-06 16:15:25,283 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 340 transitions, 2400 flow [2022-12-06 16:15:25,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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 16:15:25,283 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:25,283 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] [2022-12-06 16:15:25,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:15:25,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:25,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1167838467, now seen corresponding path program 1 times [2022-12-06 16:15:25,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:25,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059465534] [2022-12-06 16:15:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:25,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:25,357 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 16:15:25,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:25,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059465534] [2022-12-06 16:15:25,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059465534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:25,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:25,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:15:25,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039167779] [2022-12-06 16:15:25,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:25,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:15:25,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:25,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:15:25,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:15:25,360 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-12-06 16:15:25,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 340 transitions, 2400 flow. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 16:15:25,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:25,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-12-06 16:15:25,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:27,739 INFO L130 PetriNetUnfolder]: 11371/24603 cut-off events. [2022-12-06 16:15:27,740 INFO L131 PetriNetUnfolder]: For 54008/55578 co-relation queries the response was YES. [2022-12-06 16:15:27,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79278 conditions, 24603 events. 11371/24603 cut-off events. For 54008/55578 co-relation queries the response was YES. Maximal size of possible extension queue 2573. Compared 282006 event pairs, 1105 based on Foata normal form. 463/23871 useless extension candidates. Maximal degree in co-relation 44400. Up to 4885 conditions per place. [2022-12-06 16:15:27,874 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 689 selfloop transitions, 107 changer transitions 341/1205 dead transitions. [2022-12-06 16:15:27,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 1205 transitions, 11909 flow [2022-12-06 16:15:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:15:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:15:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 910 transitions. [2022-12-06 16:15:27,876 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2022-12-06 16:15:27,877 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2022-12-06 16:15:27,877 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 1205 transitions, 11909 flow [2022-12-06 16:15:27,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 16:15:27,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:27,877 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] [2022-12-06 16:15:27,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:15:27,878 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:27,878 INFO L85 PathProgramCache]: Analyzing trace with hash 596840955, now seen corresponding path program 1 times [2022-12-06 16:15:27,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:27,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040299079] [2022-12-06 16:15:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:27,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:27,971 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 16:15:27,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:27,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040299079] [2022-12-06 16:15:27,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040299079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:27,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:27,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:15:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482217714] [2022-12-06 16:15:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:27,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:15:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:15:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:15:27,975 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-12-06 16:15:27,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 1205 transitions, 11909 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 16:15:27,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:27,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-12-06 16:15:27,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:31,239 INFO L130 PetriNetUnfolder]: 11775/25467 cut-off events. [2022-12-06 16:15:31,240 INFO L131 PetriNetUnfolder]: For 70588/74312 co-relation queries the response was YES. [2022-12-06 16:15:31,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99364 conditions, 25467 events. 11775/25467 cut-off events. For 70588/74312 co-relation queries the response was YES. Maximal size of possible extension queue 2671. Compared 293274 event pairs, 1045 based on Foata normal form. 603/25155 useless extension candidates. Maximal degree in co-relation 89584. Up to 5004 conditions per place. [2022-12-06 16:15:31,387 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 913 selfloop transitions, 164 changer transitions 479/1624 dead transitions. [2022-12-06 16:15:31,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 1624 transitions, 19162 flow [2022-12-06 16:15:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:15:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:15:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 813 transitions. [2022-12-06 16:15:31,389 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8364197530864198 [2022-12-06 16:15:31,389 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 32 predicate places. [2022-12-06 16:15:31,389 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 1624 transitions, 19162 flow [2022-12-06 16:15:31,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 16:15:31,390 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:31,390 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] [2022-12-06 16:15:31,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:15:31,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash 721019563, now seen corresponding path program 1 times [2022-12-06 16:15:31,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:31,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841323133] [2022-12-06 16:15:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:31,469 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 16:15:31,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:31,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841323133] [2022-12-06 16:15:31,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841323133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:31,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:31,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:15:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163955086] [2022-12-06 16:15:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:31,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:15:31,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:31,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:15:31,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:15:31,472 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-12-06 16:15:31,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 1624 transitions, 19162 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 16:15:31,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:31,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-12-06 16:15:31,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:35,565 INFO L130 PetriNetUnfolder]: 12265/26618 cut-off events. [2022-12-06 16:15:35,565 INFO L131 PetriNetUnfolder]: For 91058/98060 co-relation queries the response was YES. [2022-12-06 16:15:35,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121921 conditions, 26618 events. 12265/26618 cut-off events. For 91058/98060 co-relation queries the response was YES. Maximal size of possible extension queue 2852. Compared 308988 event pairs, 757 based on Foata normal form. 809/26591 useless extension candidates. Maximal degree in co-relation 109954. Up to 5353 conditions per place. [2022-12-06 16:15:35,740 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 1211 selfloop transitions, 224 changer transitions 734/2249 dead transitions. [2022-12-06 16:15:35,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 2249 transitions, 31131 flow [2022-12-06 16:15:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:15:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:15:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 823 transitions. [2022-12-06 16:15:35,742 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8467078189300411 [2022-12-06 16:15:35,744 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 40 predicate places. [2022-12-06 16:15:35,745 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 2249 transitions, 31131 flow [2022-12-06 16:15:35,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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 16:15:35,745 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:35,745 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] [2022-12-06 16:15:35,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:15:35,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:35,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash 530747751, now seen corresponding path program 1 times [2022-12-06 16:15:35,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:35,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526427219] [2022-12-06 16:15:35,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:35,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:35,870 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 16:15:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:35,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526427219] [2022-12-06 16:15:35,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526427219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:35,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:35,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:15:35,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978951624] [2022-12-06 16:15:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:35,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:15:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:15:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:15:35,876 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 108 [2022-12-06 16:15:35,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 2249 transitions, 31131 flow. Second operand has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 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 16:15:35,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:35,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 108 [2022-12-06 16:15:35,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:36,853 INFO L130 PetriNetUnfolder]: 1859/4774 cut-off events. [2022-12-06 16:15:36,853 INFO L131 PetriNetUnfolder]: For 29069/31061 co-relation queries the response was YES. [2022-12-06 16:15:36,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24304 conditions, 4774 events. 1859/4774 cut-off events. For 29069/31061 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 45833 event pairs, 162 based on Foata normal form. 615/5325 useless extension candidates. Maximal degree in co-relation 20499. Up to 1303 conditions per place. [2022-12-06 16:15:36,872 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 102 selfloop transitions, 21 changer transitions 452/704 dead transitions. [2022-12-06 16:15:36,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 704 transitions, 10322 flow [2022-12-06 16:15:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:15:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:15:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 496 transitions. [2022-12-06 16:15:36,878 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2022-12-06 16:15:36,878 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 44 predicate places. [2022-12-06 16:15:36,878 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 704 transitions, 10322 flow [2022-12-06 16:15:36,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 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 16:15:36,879 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:15:36,879 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] [2022-12-06 16:15:36,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:15:36,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:15:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:15:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1629127960, now seen corresponding path program 1 times [2022-12-06 16:15:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:15:36,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165652386] [2022-12-06 16:15:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:15:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:15:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:15:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:15:36,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:15:36,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165652386] [2022-12-06 16:15:36,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165652386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:15:36,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:15:36,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:15:36,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174001582] [2022-12-06 16:15:36,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:15:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:15:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:15:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:15:36,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:15:36,965 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 108 [2022-12-06 16:15:36,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 704 transitions, 10322 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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 16:15:36,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:15:36,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 108 [2022-12-06 16:15:36,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:15:37,394 INFO L130 PetriNetUnfolder]: 1310/3474 cut-off events. [2022-12-06 16:15:37,394 INFO L131 PetriNetUnfolder]: For 24920/26676 co-relation queries the response was YES. [2022-12-06 16:15:37,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18892 conditions, 3474 events. 1310/3474 cut-off events. For 24920/26676 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 31319 event pairs, 129 based on Foata normal form. 99/3533 useless extension candidates. Maximal degree in co-relation 17651. Up to 1075 conditions per place. [2022-12-06 16:15:37,411 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 0 selfloop transitions, 0 changer transitions 545/545 dead transitions. [2022-12-06 16:15:37,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 545 transitions, 8689 flow [2022-12-06 16:15:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:15:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:15:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2022-12-06 16:15:37,415 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9148148148148149 [2022-12-06 16:15:37,415 INFO L294 CegarLoopForPetriNet]: 102 programPoint places, 44 predicate places. [2022-12-06 16:15:37,415 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 545 transitions, 8689 flow [2022-12-06 16:15:37,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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 16:15:37,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-06 16:15:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-12-06 16:15:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-06 16:15:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-06 16:15:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-06 16:15:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 16:15:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 16:15:37,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:15:37,420 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-06 16:15:37,425 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:15:37,425 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:15:37,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:15:37 BasicIcfg [2022-12-06 16:15:37,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:15:37,430 INFO L158 Benchmark]: Toolchain (without parser) took 16799.74ms. Allocated memory was 205.5MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 180.1MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-12-06 16:15:37,431 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 205.5MB. Free memory is still 181.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:15:37,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.14ms. Allocated memory is still 205.5MB. Free memory was 180.1MB in the beginning and 158.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 16:15:37,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.39ms. Allocated memory is still 205.5MB. Free memory was 158.9MB in the beginning and 156.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:15:37,432 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 205.5MB. Free memory was 156.8MB in the beginning and 155.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:15:37,432 INFO L158 Benchmark]: RCFGBuilder took 386.41ms. Allocated memory is still 205.5MB. Free memory was 155.2MB in the beginning and 139.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 16:15:37,432 INFO L158 Benchmark]: TraceAbstraction took 15917.56ms. Allocated memory was 205.5MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 138.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-12-06 16:15:37,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 205.5MB. Free memory is still 181.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.14ms. Allocated memory is still 205.5MB. Free memory was 180.1MB in the beginning and 158.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.39ms. Allocated memory is still 205.5MB. Free memory was 158.9MB in the beginning and 156.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.04ms. Allocated memory is still 205.5MB. Free memory was 156.8MB in the beginning and 155.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 386.41ms. Allocated memory is still 205.5MB. Free memory was 155.2MB in the beginning and 139.0MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 15917.56ms. Allocated memory was 205.5MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 138.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 739]: 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 7 procedures, 132 locations, 7 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: 15.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 421 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 421 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1340 IncrementalHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 122 mSDtfsCounter, 1340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31131occurred in iteration=6, InterpolantAutomatonStates: 56, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 16:15:37,444 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...