/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 17:45:10,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 17:45:10,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 17:45:10,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 17:45:10,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 17:45:10,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 17:45:10,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 17:45:10,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 17:45:10,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 17:45:10,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 17:45:10,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 17:45:10,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 17:45:10,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 17:45:10,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 17:45:10,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 17:45:10,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 17:45:10,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 17:45:10,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 17:45:10,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 17:45:10,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 17:45:10,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 17:45:10,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 17:45:10,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 17:45:10,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 17:45:10,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 17:45:10,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 17:45:10,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 17:45:10,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 17:45:10,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 17:45:10,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 17:45:10,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 17:45:10,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 17:45:10,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 17:45:10,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 17:45:10,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 17:45:10,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 17:45:10,933 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-VariableLbe.epf [2023-01-27 17:45:10,960 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 17:45:10,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 17:45:10,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 17:45:10,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 17:45:10,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 17:45:10,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 17:45:10,962 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 17:45:10,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 17:45:10,962 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 17:45:10,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 17:45:10,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 17:45:10,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 17:45:10,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 17:45:10,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 17:45:10,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 17:45:10,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:45:10,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 17:45:10,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 17:45:10,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 17:45:10,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 17:45:10,966 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 17:45:11,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 17:45:11,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 17:45:11,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 17:45:11,196 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 17:45:11,196 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 17:45:11,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2023-01-27 17:45:12,326 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 17:45:12,542 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 17:45:12,542 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2023-01-27 17:45:12,554 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207c3480c/d29125fd88764a1f90f5f2cb5bd545a2/FLAGed44e9442 [2023-01-27 17:45:12,565 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207c3480c/d29125fd88764a1f90f5f2cb5bd545a2 [2023-01-27 17:45:12,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 17:45:12,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 17:45:12,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 17:45:12,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 17:45:12,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 17:45:12,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:12,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5395743c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12, skipping insertion in model container [2023-01-27 17:45:12,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:12,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 17:45:12,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 17:45:12,741 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 17:45:12,871 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2023-01-27 17:45:12,880 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2023-01-27 17:45:12,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:45:12,897 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 17:45:12,920 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 17:45:12,947 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2023-01-27 17:45:12,950 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2023-01-27 17:45:12,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:45:12,984 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 17:45:12,984 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 17:45:12,984 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 17:45:12,991 INFO L208 MainTranslator]: Completed translation [2023-01-27 17:45:12,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12 WrapperNode [2023-01-27 17:45:12,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 17:45:12,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 17:45:12,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 17:45:12,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 17:45:13,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,031 INFO L138 Inliner]: procedures = 172, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2023-01-27 17:45:13,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 17:45:13,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 17:45:13,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 17:45:13,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 17:45:13,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,058 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 17:45:13,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 17:45:13,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 17:45:13,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 17:45:13,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (1/1) ... [2023-01-27 17:45:13,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:45:13,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:45:13,086 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) [2023-01-27 17:45:13,100 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 [2023-01-27 17:45:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 17:45:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-01-27 17:45:13,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-01-27 17:45:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-27 17:45:13,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 17:45:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 17:45:13,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 17:45:13,135 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 17:45:13,314 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 17:45:13,316 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 17:45:13,522 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 17:45:13,528 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 17:45:13,528 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-27 17:45:13,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:45:13 BoogieIcfgContainer [2023-01-27 17:45:13,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 17:45:13,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 17:45:13,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 17:45:13,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 17:45:13,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 05:45:12" (1/3) ... [2023-01-27 17:45:13,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8e6833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:45:13, skipping insertion in model container [2023-01-27 17:45:13,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:45:12" (2/3) ... [2023-01-27 17:45:13,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8e6833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:45:13, skipping insertion in model container [2023-01-27 17:45:13,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:45:13" (3/3) ... [2023-01-27 17:45:13,553 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2023-01-27 17:45:13,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 17:45:13,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 17:45:13,566 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 17:45:13,620 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 17:45:13,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 216 flow [2023-01-27 17:45:13,686 INFO L130 PetriNetUnfolder]: 13/98 cut-off events. [2023-01-27 17:45:13,686 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 17:45:13,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 98 events. 13/98 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-01-27 17:45:13,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 100 transitions, 216 flow [2023-01-27 17:45:13,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 89 transitions, 187 flow [2023-01-27 17:45:13,697 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 17:45:13,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 89 transitions, 187 flow [2023-01-27 17:45:13,719 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 89 transitions, 187 flow [2023-01-27 17:45:13,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 89 transitions, 187 flow [2023-01-27 17:45:13,743 INFO L130 PetriNetUnfolder]: 13/89 cut-off events. [2023-01-27 17:45:13,743 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 17:45:13,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 89 events. 13/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-01-27 17:45:13,745 INFO L119 LiptonReduction]: Number of co-enabled transitions 2132 [2023-01-27 17:45:15,571 INFO L134 LiptonReduction]: Checked pairs total: 7839 [2023-01-27 17:45:15,571 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-01-27 17:45:15,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 17:45:15,589 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;@5dee21f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 17:45:15,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-27 17:45:15,593 INFO L130 PetriNetUnfolder]: 2/16 cut-off events. [2023-01-27 17:45:15,593 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 17:45:15,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:45:15,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 17:45:15,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 17:45:15,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:45:15,598 INFO L85 PathProgramCache]: Analyzing trace with hash -966251382, now seen corresponding path program 1 times [2023-01-27 17:45:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:45:15,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321949939] [2023-01-27 17:45:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:45:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:45:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:45:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:45:15,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:45:15,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321949939] [2023-01-27 17:45:15,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321949939] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:45:15,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:45:15,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 17:45:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450622728] [2023-01-27 17:45:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:45:15,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:45:15,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:45:15,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:45:15,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:45:15,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 162 [2023-01-27 17:45:15,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-01-27 17:45:15,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:45:15,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 162 [2023-01-27 17:45:15,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:45:16,004 INFO L130 PetriNetUnfolder]: 474/865 cut-off events. [2023-01-27 17:45:16,005 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-27 17:45:16,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 865 events. 474/865 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4520 event pairs, 160 based on Foata normal form. 44/638 useless extension candidates. Maximal degree in co-relation 1499. Up to 420 conditions per place. [2023-01-27 17:45:16,014 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 38 selfloop transitions, 3 changer transitions 2/54 dead transitions. [2023-01-27 17:45:16,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 206 flow [2023-01-27 17:45:16,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:45:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:45:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2023-01-27 17:45:16,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6069958847736625 [2023-01-27 17:45:16,033 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2023-01-27 17:45:16,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2023-01-27 17:45:16,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:45:16,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2023-01-27 17:45:16,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2023-01-27 17:45:16,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-01-27 17:45:16,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-01-27 17:45:16,050 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 91 flow. Second operand 3 states and 295 transitions. [2023-01-27 17:45:16,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 206 flow [2023-01-27 17:45:16,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 199 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 17:45:16,056 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 104 flow [2023-01-27 17:45:16,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=41, PETRI_TRANSITIONS=40} [2023-01-27 17:45:16,063 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-01-27 17:45:16,064 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 104 flow [2023-01-27 17:45:16,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-01-27 17:45:16,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:45:16,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:45:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 17:45:16,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 17:45:16,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:45:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash 486242857, now seen corresponding path program 1 times [2023-01-27 17:45:16,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:45:16,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201375383] [2023-01-27 17:45:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:45:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:45:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:45:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:45:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:45:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201375383] [2023-01-27 17:45:16,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201375383] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:45:16,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:45:16,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 17:45:16,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397121826] [2023-01-27 17:45:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:45:16,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:45:16,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:45:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:45:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:45:16,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 162 [2023-01-27 17:45:16,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-01-27 17:45:16,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:45:16,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 162 [2023-01-27 17:45:16,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:45:16,246 INFO L130 PetriNetUnfolder]: 380/711 cut-off events. [2023-01-27 17:45:16,246 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2023-01-27 17:45:16,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 711 events. 380/711 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3616 event pairs, 160 based on Foata normal form. 32/600 useless extension candidates. Maximal degree in co-relation 762. Up to 413 conditions per place. [2023-01-27 17:45:16,251 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 32 selfloop transitions, 2 changer transitions 6/51 dead transitions. [2023-01-27 17:45:16,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 207 flow [2023-01-27 17:45:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:45:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:45:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-01-27 17:45:16,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5946502057613169 [2023-01-27 17:45:16,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-01-27 17:45:16,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-01-27 17:45:16,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:45:16,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-01-27 17:45:16,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2023-01-27 17:45:16,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-01-27 17:45:16,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-01-27 17:45:16,259 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 104 flow. Second operand 3 states and 289 transitions. [2023-01-27 17:45:16,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 207 flow [2023-01-27 17:45:16,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 17:45:16,262 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 102 flow [2023-01-27 17:45:16,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-01-27 17:45:16,263 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2023-01-27 17:45:16,264 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 102 flow [2023-01-27 17:45:16,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-01-27 17:45:16,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:45:16,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:45:16,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 17:45:16,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 17:45:16,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:45:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 991506848, now seen corresponding path program 1 times [2023-01-27 17:45:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:45:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133973612] [2023-01-27 17:45:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:45:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:45:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:45:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:45:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:45:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133973612] [2023-01-27 17:45:16,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133973612] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:45:16,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:45:16,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 17:45:16,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888517886] [2023-01-27 17:45:16,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:45:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 17:45:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:45:16,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 17:45:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 17:45:16,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 162 [2023-01-27 17:45:16,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-01-27 17:45:16,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:45:16,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 162 [2023-01-27 17:45:16,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:45:16,537 INFO L130 PetriNetUnfolder]: 542/945 cut-off events. [2023-01-27 17:45:16,538 INFO L131 PetriNetUnfolder]: For 251/251 co-relation queries the response was YES. [2023-01-27 17:45:16,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 945 events. 542/945 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4655 event pairs, 128 based on Foata normal form. 18/781 useless extension candidates. Maximal degree in co-relation 1401. Up to 319 conditions per place. [2023-01-27 17:45:16,542 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 49 selfloop transitions, 9 changer transitions 5/73 dead transitions. [2023-01-27 17:45:16,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 73 transitions, 310 flow [2023-01-27 17:45:16,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 17:45:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 17:45:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2023-01-27 17:45:16,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5728395061728395 [2023-01-27 17:45:16,545 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2023-01-27 17:45:16,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2023-01-27 17:45:16,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:45:16,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2023-01-27 17:45:16,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2023-01-27 17:45:16,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-01-27 17:45:16,548 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-01-27 17:45:16,548 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 102 flow. Second operand 5 states and 464 transitions. [2023-01-27 17:45:16,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 73 transitions, 310 flow [2023-01-27 17:45:16,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 73 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 17:45:16,552 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 151 flow [2023-01-27 17:45:16,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-01-27 17:45:16,553 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2023-01-27 17:45:16,553 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 151 flow [2023-01-27 17:45:16,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-01-27 17:45:16,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:45:16,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:45:16,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 17:45:16,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 17:45:16,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:45:16,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1296093578, now seen corresponding path program 2 times [2023-01-27 17:45:16,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:45:16,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293885167] [2023-01-27 17:45:16,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:45:16,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:45:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:45:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:45:16,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:45:16,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293885167] [2023-01-27 17:45:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293885167] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:45:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:45:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 17:45:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350241481] [2023-01-27 17:45:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:45:16,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 17:45:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:45:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 17:45:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 17:45:16,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 162 [2023-01-27 17:45:16,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-01-27 17:45:16,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:45:16,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 162 [2023-01-27 17:45:16,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:45:16,811 INFO L130 PetriNetUnfolder]: 696/1151 cut-off events. [2023-01-27 17:45:16,812 INFO L131 PetriNetUnfolder]: For 655/659 co-relation queries the response was YES. [2023-01-27 17:45:16,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2643 conditions, 1151 events. 696/1151 cut-off events. For 655/659 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5401 event pairs, 117 based on Foata normal form. 28/1023 useless extension candidates. Maximal degree in co-relation 1906. Up to 327 conditions per place. [2023-01-27 17:45:16,815 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2023-01-27 17:45:16,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 81 transitions, 415 flow [2023-01-27 17:45:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 17:45:16,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 17:45:16,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2023-01-27 17:45:16,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5691358024691358 [2023-01-27 17:45:16,824 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 461 transitions. [2023-01-27 17:45:16,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 461 transitions. [2023-01-27 17:45:16,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:45:16,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 461 transitions. [2023-01-27 17:45:16,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 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) [2023-01-27 17:45:16,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-01-27 17:45:16,828 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-01-27 17:45:16,828 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 151 flow. Second operand 5 states and 461 transitions. [2023-01-27 17:45:16,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 81 transitions, 415 flow [2023-01-27 17:45:16,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 411 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-01-27 17:45:16,834 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-01-27 17:45:16,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-01-27 17:45:16,836 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2023-01-27 17:45:16,836 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-01-27 17:45:16,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-01-27 17:45:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-01-27 17:45:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-01-27 17:45:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-01-27 17:45:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-01-27 17:45:16,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-27 17:45:16,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-27 17:45:16,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 17:45:16,840 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-01-27 17:45:16,845 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 17:45:16,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 17:45:16,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 05:45:16 BasicIcfg [2023-01-27 17:45:16,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 17:45:16,853 INFO L158 Benchmark]: Toolchain (without parser) took 4284.92ms. Allocated memory is still 465.6MB. Free memory was 411.7MB in the beginning and 197.9MB in the end (delta: 213.9MB). Peak memory consumption was 217.0MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,854 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 304.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 17:45:16,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.26ms. Allocated memory is still 465.6MB. Free memory was 411.4MB in the beginning and 391.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.41ms. Allocated memory is still 465.6MB. Free memory was 391.4MB in the beginning and 389.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,855 INFO L158 Benchmark]: Boogie Preprocessor took 29.28ms. Allocated memory is still 465.6MB. Free memory was 389.3MB in the beginning and 387.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,857 INFO L158 Benchmark]: RCFGBuilder took 468.47ms. Allocated memory is still 465.6MB. Free memory was 387.8MB in the beginning and 374.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,859 INFO L158 Benchmark]: TraceAbstraction took 3304.39ms. Allocated memory is still 465.6MB. Free memory was 429.4MB in the beginning and 197.9MB in the end (delta: 231.5MB). Peak memory consumption was 231.7MB. Max. memory is 16.0GB. [2023-01-27 17:45:16,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 304.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 423.26ms. Allocated memory is still 465.6MB. Free memory was 411.4MB in the beginning and 391.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.41ms. Allocated memory is still 465.6MB. Free memory was 391.4MB in the beginning and 389.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.28ms. Allocated memory is still 465.6MB. Free memory was 389.3MB in the beginning and 387.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 468.47ms. Allocated memory is still 465.6MB. Free memory was 387.8MB in the beginning and 374.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3304.39ms. Allocated memory is still 465.6MB. Free memory was 429.4MB in the beginning and 197.9MB in the end (delta: 231.5MB). Peak memory consumption was 231.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 83 PlacesBefore, 40 PlacesAfterwards, 89 TransitionsBefore, 41 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 62 TotalNumberOfCompositions, 7839 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3488, independent: 3189, independent conditional: 0, independent unconditional: 3189, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1087, independent: 1050, independent conditional: 0, independent unconditional: 1050, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3488, independent: 2139, independent conditional: 0, independent unconditional: 2139, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 1087, unknown conditional: 0, unknown unconditional: 1087] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 5 procedures, 132 locations, 6 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: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 13 mSDtfsCounter, 337 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 17:45:16,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...