/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:23:53,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:23:53,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:23:53,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:23:53,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:23:53,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:23:53,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:23:53,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:23:53,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:23:53,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:23:53,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:23:53,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:23:53,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:23:53,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:23:53,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:23:53,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:23:53,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:23:53,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:23:53,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:23:53,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:23:53,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:23:53,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:23:53,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:23:53,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:23:53,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:23:53,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:23:53,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:23:53,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:23:53,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:23:53,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:23:53,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:23:53,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:23:53,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:23:53,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:23:53,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:23:53,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:23:53,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:23:53,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:23:53,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:23:53,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:23:53,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:23:53,598 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-SemanticLbe.epf [2022-12-12 14:23:53,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:23:53,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:23:53,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:23:53,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:23:53,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:23:53,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:23:53,639 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:23:53,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:23:53,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:23:53,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:23:53,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:23:53,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:23:53,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:23:53,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:23:53,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:23:53,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:23:53,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:23:53,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:23:53,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:23:53,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:23:53,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:23:53,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:23:53,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:23:53,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:23:53,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:23:53,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:23:53,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:23:53,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:23:53,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:23:53,998 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:23:53,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2022-12-12 14:23:55,237 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:23:55,487 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:23:55,488 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2022-12-12 14:23:55,500 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2675282f4/a8ae148ed88646dca08951ee09bd9ac4/FLAGc8de26fea [2022-12-12 14:23:55,512 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2675282f4/a8ae148ed88646dca08951ee09bd9ac4 [2022-12-12 14:23:55,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:23:55,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:23:55,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:23:55,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:23:55,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:23:55,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:23:55" (1/1) ... [2022-12-12 14:23:55,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b358930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:55, skipping insertion in model container [2022-12-12 14:23:55,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:23:55" (1/1) ... [2022-12-12 14:23:55,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:23:55,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:23:55,898 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/time_var_mutex.i[30247,30260] [2022-12-12 14:23:55,903 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/time_var_mutex.i[30452,30465] [2022-12-12 14:23:55,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:23:55,926 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:23:55,968 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/time_var_mutex.i[30247,30260] [2022-12-12 14:23:55,970 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/time_var_mutex.i[30452,30465] [2022-12-12 14:23:55,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:23:56,022 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:23:56,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56 WrapperNode [2022-12-12 14:23:56,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:23:56,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:23:56,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:23:56,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:23:56,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,083 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-12-12 14:23:56,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:23:56,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:23:56,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:23:56,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:23:56,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:23:56,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:23:56,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:23:56,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:23:56,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (1/1) ... [2022-12-12 14:23:56,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:23:56,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:23:56,168 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) [2022-12-12 14:23:56,203 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 [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2022-12-12 14:23:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2022-12-12 14:23:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 14:23:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:23:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:23:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:23:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:23:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:23:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:23:56,217 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:23:56,366 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:23:56,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:23:56,525 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:23:56,531 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:23:56,531 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:23:56,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:23:56 BoogieIcfgContainer [2022-12-12 14:23:56,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:23:56,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:23:56,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:23:56,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:23:56,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:23:55" (1/3) ... [2022-12-12 14:23:56,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a8bd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:23:56, skipping insertion in model container [2022-12-12 14:23:56,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:23:56" (2/3) ... [2022-12-12 14:23:56,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a8bd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:23:56, skipping insertion in model container [2022-12-12 14:23:56,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:23:56" (3/3) ... [2022-12-12 14:23:56,541 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2022-12-12 14:23:56,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:23:56,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 14:23:56,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:23:56,606 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 14:23:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 208 flow [2022-12-12 14:23:56,676 INFO L130 PetriNetUnfolder]: 5/94 cut-off events. [2022-12-12 14:23:56,676 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 14:23:56,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 5/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2022-12-12 14:23:56,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 96 transitions, 208 flow [2022-12-12 14:23:56,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 85 transitions, 179 flow [2022-12-12 14:23:56,686 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:23:56,702 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 85 transitions, 179 flow [2022-12-12 14:23:56,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 179 flow [2022-12-12 14:23:56,727 INFO L130 PetriNetUnfolder]: 5/85 cut-off events. [2022-12-12 14:23:56,727 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:23:56,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 85 events. 5/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2022-12-12 14:23:56,730 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 85 transitions, 179 flow [2022-12-12 14:23:56,730 INFO L226 LiptonReduction]: Number of co-enabled transitions 1042 [2022-12-12 14:24:00,918 INFO L241 LiptonReduction]: Total number of compositions: 67 [2022-12-12 14:24:00,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:24:00,947 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;@572ee913, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:24:00,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 14:24:00,958 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2022-12-12 14:24:00,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 14:24:00,958 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:24:00,959 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 14:24:00,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 14:24:00,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:24:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash 346632985, now seen corresponding path program 1 times [2022-12-12 14:24:00,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:24:00,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562622987] [2022-12-12 14:24:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:24:00,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:24:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:24:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:24:01,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:24:01,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562622987] [2022-12-12 14:24:01,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562622987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:24:01,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:24:01,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:24:01,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400599067] [2022-12-12 14:24:01,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:24:01,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:24:01,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:24:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:24:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:24:01,268 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2022-12-12 14:24:01,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-12-12 14:24:01,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:24:01,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2022-12-12 14:24:01,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:24:01,416 INFO L130 PetriNetUnfolder]: 483/1030 cut-off events. [2022-12-12 14:24:01,416 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-12 14:24:01,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1030 events. 483/1030 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6117 event pairs, 266 based on Foata normal form. 0/714 useless extension candidates. Maximal degree in co-relation 1795. Up to 491 conditions per place. [2022-12-12 14:24:01,423 INFO L137 encePairwiseOnDemand]: 40/47 looper letters, 42 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2022-12-12 14:24:01,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 214 flow [2022-12-12 14:24:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:24:01,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:24:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2022-12-12 14:24:01,434 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6312056737588653 [2022-12-12 14:24:01,435 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 103 flow. Second operand 3 states and 89 transitions. [2022-12-12 14:24:01,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 214 flow [2022-12-12 14:24:01,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:24:01,441 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 92 flow [2022-12-12 14:24:01,442 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2022-12-12 14:24:01,445 INFO L295 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2022-12-12 14:24:01,446 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 92 flow [2022-12-12 14:24:01,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-12-12 14:24:01,446 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:24:01,446 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:24:01,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:24:01,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 14:24:01,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:24:01,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1900548389, now seen corresponding path program 1 times [2022-12-12 14:24:01,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:24:01,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746191834] [2022-12-12 14:24:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:24:01,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:24:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:24:01,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:24:01,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:24:01,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746191834] [2022-12-12 14:24:01,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746191834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:24:01,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:24:01,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:24:01,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697099290] [2022-12-12 14:24:01,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:24:01,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:24:01,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:24:01,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:24:01,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:24:01,542 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2022-12-12 14:24:01,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-12-12 14:24:01,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:24:01,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2022-12-12 14:24:01,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:24:01,736 INFO L130 PetriNetUnfolder]: 665/1294 cut-off events. [2022-12-12 14:24:01,737 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-12 14:24:01,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2515 conditions, 1294 events. 665/1294 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7355 event pairs, 370 based on Foata normal form. 41/801 useless extension candidates. Maximal degree in co-relation 1809. Up to 717 conditions per place. [2022-12-12 14:24:01,741 INFO L137 encePairwiseOnDemand]: 40/47 looper letters, 41 selfloop transitions, 5 changer transitions 7/62 dead transitions. [2022-12-12 14:24:01,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 241 flow [2022-12-12 14:24:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:24:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:24:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2022-12-12 14:24:01,769 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5815602836879432 [2022-12-12 14:24:01,769 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 92 flow. Second operand 3 states and 82 transitions. [2022-12-12 14:24:01,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 241 flow [2022-12-12 14:24:01,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:24:01,771 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 114 flow [2022-12-12 14:24:01,771 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2022-12-12 14:24:01,772 INFO L295 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-12-12 14:24:01,772 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 114 flow [2022-12-12 14:24:01,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-12-12 14:24:01,772 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:24:01,772 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:24:01,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:24:01,773 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 14:24:01,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:24:01,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1298156403, now seen corresponding path program 1 times [2022-12-12 14:24:01,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:24:01,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955354341] [2022-12-12 14:24:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:24:01,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:24:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:24:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:24:01,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:24:01,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955354341] [2022-12-12 14:24:01,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955354341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:24:01,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:24:01,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:24:01,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749733426] [2022-12-12 14:24:01,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:24:01,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:24:01,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:24:01,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:24:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:24:01,817 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2022-12-12 14:24:01,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-12 14:24:01,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:24:01,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2022-12-12 14:24:01,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:24:01,920 INFO L130 PetriNetUnfolder]: 420/873 cut-off events. [2022-12-12 14:24:01,921 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-12 14:24:01,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 873 events. 420/873 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4809 event pairs, 244 based on Foata normal form. 35/621 useless extension candidates. Maximal degree in co-relation 1514. Up to 484 conditions per place. [2022-12-12 14:24:01,924 INFO L137 encePairwiseOnDemand]: 41/47 looper letters, 24 selfloop transitions, 4 changer transitions 21/57 dead transitions. [2022-12-12 14:24:01,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 245 flow [2022-12-12 14:24:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:24:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:24:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-12-12 14:24:01,925 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5460992907801419 [2022-12-12 14:24:01,926 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 114 flow. Second operand 3 states and 77 transitions. [2022-12-12 14:24:01,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 245 flow [2022-12-12 14:24:01,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:24:01,929 INFO L231 Difference]: Finished difference. Result has 47 places, 31 transitions, 94 flow [2022-12-12 14:24:01,929 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=47, PETRI_TRANSITIONS=31} [2022-12-12 14:24:01,929 INFO L295 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2022-12-12 14:24:01,930 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 31 transitions, 94 flow [2022-12-12 14:24:01,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-12 14:24:01,930 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:24:01,930 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:24:01,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:24:01,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 14:24:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:24:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash -955413943, now seen corresponding path program 1 times [2022-12-12 14:24:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:24:01,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488511257] [2022-12-12 14:24:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:24:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:24:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:24:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:24:02,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:24:02,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488511257] [2022-12-12 14:24:02,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488511257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:24:02,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:24:02,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:24:02,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274921487] [2022-12-12 14:24:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:24:02,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:24:02,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:24:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:24:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:24:02,043 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 47 [2022-12-12 14:24:02,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 31 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-12 14:24:02,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:24:02,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 47 [2022-12-12 14:24:02,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:24:02,165 INFO L130 PetriNetUnfolder]: 246/512 cut-off events. [2022-12-12 14:24:02,165 INFO L131 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2022-12-12 14:24:02,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 512 events. 246/512 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2480 event pairs, 50 based on Foata normal form. 12/375 useless extension candidates. Maximal degree in co-relation 1065. Up to 211 conditions per place. [2022-12-12 14:24:02,167 INFO L137 encePairwiseOnDemand]: 34/47 looper letters, 25 selfloop transitions, 14 changer transitions 21/64 dead transitions. [2022-12-12 14:24:02,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 309 flow [2022-12-12 14:24:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:24:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:24:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2022-12-12 14:24:02,171 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3872340425531915 [2022-12-12 14:24:02,171 INFO L175 Difference]: Start difference. First operand has 47 places, 31 transitions, 94 flow. Second operand 5 states and 91 transitions. [2022-12-12 14:24:02,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 309 flow [2022-12-12 14:24:02,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:24:02,175 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 122 flow [2022-12-12 14:24:02,176 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-12 14:24:02,177 INFO L295 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2022-12-12 14:24:02,177 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 122 flow [2022-12-12 14:24:02,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-12 14:24:02,177 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:24:02,178 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:24:02,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:24:02,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION === [allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 14:24:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:24:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2146308483, now seen corresponding path program 2 times [2022-12-12 14:24:02,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:24:02,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752980631] [2022-12-12 14:24:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:24:02,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:24:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:24:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:24:02,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:24:02,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752980631] [2022-12-12 14:24:02,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752980631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:24:02,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:24:02,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 14:24:02,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268314353] [2022-12-12 14:24:02,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:24:02,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:24:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:24:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:24:02,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:24:02,250 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2022-12-12 14:24:02,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-12-12 14:24:02,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:24:02,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2022-12-12 14:24:02,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:24:02,277 INFO L130 PetriNetUnfolder]: 23/66 cut-off events. [2022-12-12 14:24:02,277 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-12 14:24:02,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 66 events. 23/66 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 207 event pairs, 15 based on Foata normal form. 6/65 useless extension candidates. Maximal degree in co-relation 147. Up to 38 conditions per place. [2022-12-12 14:24:02,279 INFO L137 encePairwiseOnDemand]: 45/47 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2022-12-12 14:24:02,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 91 flow [2022-12-12 14:24:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:24:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:24:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-12 14:24:02,281 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3900709219858156 [2022-12-12 14:24:02,281 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 122 flow. Second operand 3 states and 55 transitions. [2022-12-12 14:24:02,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 91 flow [2022-12-12 14:24:02,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 79 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-12 14:24:02,282 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-12 14:24:02,283 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-12 14:24:02,286 INFO L295 CegarLoopForPetriNet]: 51 programPoint places, -28 predicate places. [2022-12-12 14:24:02,286 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2022-12-12 14:24:02,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-12-12 14:24:02,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 14:24:02,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-12 14:24:02,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-12 14:24:02,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-12 14:24:02,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-12 14:24:02,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-12 14:24:02,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:24:02,293 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-12 14:24:02,297 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:24:02,297 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:24:02,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:24:02 BasicIcfg [2022-12-12 14:24:02,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:24:02,303 INFO L158 Benchmark]: Toolchain (without parser) took 6785.98ms. Allocated memory was 127.9MB in the beginning and 209.7MB in the end (delta: 81.8MB). Free memory was 101.0MB in the beginning and 173.0MB in the end (delta: -72.0MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,304 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 105.5MB in the beginning and 105.4MB in the end (delta: 66.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:24:02,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.53ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 81.0MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.55ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,310 INFO L158 Benchmark]: Boogie Preprocessor took 33.05ms. Allocated memory is still 127.9MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,310 INFO L158 Benchmark]: RCFGBuilder took 414.78ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 77.5MB in the beginning and 150.5MB in the end (delta: -73.0MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,310 INFO L158 Benchmark]: TraceAbstraction took 5765.69ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 149.5MB in the beginning and 173.0MB in the end (delta: -23.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 14:24:02,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 105.5MB in the beginning and 105.4MB in the end (delta: 66.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 506.53ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 81.0MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.55ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.05ms. Allocated memory is still 127.9MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 414.78ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 77.5MB in the beginning and 150.5MB in the end (delta: -73.0MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * TraceAbstraction took 5765.69ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 149.5MB in the beginning and 173.0MB in the end (delta: -23.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 87 PlacesBefore, 51 PlacesAfterwards, 85 TransitionsBefore, 47 TransitionsAfterwards, 1042 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 21 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1795, independent: 1704, independent conditional: 1704, independent unconditional: 0, dependent: 91, dependent conditional: 91, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1795, independent: 1704, independent conditional: 0, independent unconditional: 1704, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1795, independent: 1704, independent conditional: 0, independent unconditional: 1704, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1795, independent: 1704, independent conditional: 0, independent unconditional: 1704, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 883, independent: 854, independent conditional: 0, independent unconditional: 854, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 805, independent conditional: 0, independent unconditional: 805, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1795, independent: 850, independent conditional: 0, independent unconditional: 850, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 1557, Positive cache size: 1528, Positive conditional cache size: 0, Positive unconditional cache size: 1528, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: 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, 125 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: 5.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-12 14:24:02,329 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...