/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 21:46:55,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 21:46:55,107 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 21:46:55,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 21:46:55,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 21:46:55,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 21:46:55,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 21:46:55,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 21:46:55,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 21:46:55,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 21:46:55,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 21:46:55,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 21:46:55,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 21:46:55,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 21:46:55,137 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 21:46:55,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 21:46:55,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 21:46:55,137 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 21:46:55,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 21:46:55,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 21:46:55,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 21:46:55,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 21:46:55,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 21:46:55,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 21:46:55,139 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 21:46:55,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 21:46:55,139 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 21:46:55,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 21:46:55,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 21:46:55,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 21:46:55,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 21:46:55,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 21:46:55,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 21:46:55,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 21:46:55,142 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 21:46:55,142 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-03 21:46:55,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 21:46:55,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 21:46:55,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 21:46:55,338 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 21:46:55,339 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 21:46:55,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i [2023-08-03 21:46:56,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 21:46:56,503 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 21:46:56,504 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i [2023-08-03 21:46:56,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e582c0ff7/130093f6fb34416bb2dfb6777896b2e2/FLAGdfe3c6d01 [2023-08-03 21:46:56,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e582c0ff7/130093f6fb34416bb2dfb6777896b2e2 [2023-08-03 21:46:56,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 21:46:56,884 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 21:46:56,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 21:46:56,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 21:46:56,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 21:46:56,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 09:46:56" (1/1) ... [2023-08-03 21:46:56,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2d1080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:56, skipping insertion in model container [2023-08-03 21:46:56,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 09:46:56" (1/1) ... [2023-08-03 21:46:56,920 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 21:46:57,188 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i[58135,58148] [2023-08-03 21:46:57,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 21:46:57,209 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 21:46:57,218 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-03 21:46:57,219 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-03 21:46:57,228 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-03 21:46:57,232 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i[58135,58148] [2023-08-03 21:46:57,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 21:46:57,285 INFO L206 MainTranslator]: Completed translation [2023-08-03 21:46:57,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57 WrapperNode [2023-08-03 21:46:57,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 21:46:57,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 21:46:57,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 21:46:57,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 21:46:57,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,320 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2023-08-03 21:46:57,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 21:46:57,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 21:46:57,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 21:46:57,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 21:46:57,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 21:46:57,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 21:46:57,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 21:46:57,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 21:46:57,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (1/1) ... [2023-08-03 21:46:57,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 21:46:57,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:46:57,365 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) [2023-08-03 21:46:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 21:46:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-03 21:46:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 21:46:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-03 21:46:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-03 21:46:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 21:46:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 21:46:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 21:46:57,390 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 21:46:57,370 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 [2023-08-03 21:46:57,519 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 21:46:57,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 21:46:57,789 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 21:46:57,794 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 21:46:57,794 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-08-03 21:46:57,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 09:46:57 BoogieIcfgContainer [2023-08-03 21:46:57,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 21:46:57,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 21:46:57,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 21:46:57,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 21:46:57,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 09:46:56" (1/3) ... [2023-08-03 21:46:57,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bdb89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 09:46:57, skipping insertion in model container [2023-08-03 21:46:57,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 09:46:57" (2/3) ... [2023-08-03 21:46:57,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bdb89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 09:46:57, skipping insertion in model container [2023-08-03 21:46:57,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 09:46:57" (3/3) ... [2023-08-03 21:46:57,800 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i [2023-08-03 21:46:57,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 21:46:57,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 21:46:57,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 21:46:57,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 21:46:57,858 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-03 21:46:57,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 240 transitions, 488 flow [2023-08-03 21:46:57,940 INFO L124 PetriNetUnfolderBase]: 45/343 cut-off events. [2023-08-03 21:46:57,940 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-03 21:46:57,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 343 events. 45/343 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1028 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. [2023-08-03 21:46:57,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 240 transitions, 488 flow [2023-08-03 21:46:57,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 235 transitions, 475 flow [2023-08-03 21:46:57,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 21:46:57,970 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 235 transitions, 475 flow [2023-08-03 21:46:57,972 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 235 transitions, 475 flow [2023-08-03 21:46:57,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 235 transitions, 475 flow [2023-08-03 21:46:58,034 INFO L124 PetriNetUnfolderBase]: 44/338 cut-off events. [2023-08-03 21:46:58,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 21:46:58,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 338 events. 44/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 978 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. [2023-08-03 21:46:58,044 INFO L119 LiptonReduction]: Number of co-enabled transitions 17004 [2023-08-03 21:47:06,693 INFO L134 LiptonReduction]: Checked pairs total: 37879 [2023-08-03 21:47:06,693 INFO L136 LiptonReduction]: Total number of compositions: 182 [2023-08-03 21:47:06,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-03 21:47:06,711 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=true, 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;@362081ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 21:47:06,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-03 21:47:06,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 21:47:06,717 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-03 21:47:06,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 21:47:06,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:47:06,718 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 21:47:06,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:47:06,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:47:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash 568836363, now seen corresponding path program 1 times [2023-08-03 21:47:06,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:47:06,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510817215] [2023-08-03 21:47:06,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:47:06,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:47:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 21:47:06,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 21:47:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 21:47:06,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 21:47:06,960 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 21:47:06,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-03 21:47:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 21:47:06,968 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 21:47:06,974 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-03 21:47:06,974 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 21:47:06,974 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 21:47:07,022 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-03 21:47:07,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,096 INFO L124 PetriNetUnfolderBase]: 76/550 cut-off events. [2023-08-03 21:47:07,096 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-03 21:47:07,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-03 21:47:07,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,105 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 21:47:07,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,106 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:07,160 INFO L124 PetriNetUnfolderBase]: 76/550 cut-off events. [2023-08-03 21:47:07,161 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-03 21:47:07,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-03 21:47:07,185 INFO L119 LiptonReduction]: Number of co-enabled transitions 47892 [2023-08-03 21:47:15,411 INFO L134 LiptonReduction]: Checked pairs total: 110000 [2023-08-03 21:47:15,411 INFO L136 LiptonReduction]: Total number of compositions: 238 [2023-08-03 21:47:15,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-03 21:47:15,413 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=true, 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;@362081ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 21:47:15,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-03 21:47:15,419 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 21:47:15,419 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-08-03 21:47:15,419 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-03 21:47:15,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:47:15,420 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-03 21:47:15,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-03 21:47:15,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:47:15,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1595964270, now seen corresponding path program 1 times [2023-08-03 21:47:15,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:47:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271684561] [2023-08-03 21:47:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:47:15,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:47:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:47:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 21:47:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 21:47:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271684561] [2023-08-03 21:47:15,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271684561] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 21:47:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235811185] [2023-08-03 21:47:15,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:47:15,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:47:15,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 21:47:15,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 21:47:15,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 21:47:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 21:47:15,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 21:47:15,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 21:47:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 21:47:15,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 21:47:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235811185] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 21:47:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 21:47:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-08-03 21:47:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840460014] [2023-08-03 21:47:15,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 21:47:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 21:47:15,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 21:47:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 21:47:15,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-03 21:47:15,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-03 21:47:15,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 128 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 273.6) internal successors, (1368), 5 states have internal predecessors, (1368), 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) [2023-08-03 21:47:15,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 21:47:15,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-03 21:47:15,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 21:47:18,287 INFO L124 PetriNetUnfolderBase]: 23615/38500 cut-off events. [2023-08-03 21:47:18,287 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-08-03 21:47:18,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74193 conditions, 38500 events. 23615/38500 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 309830 event pairs, 312 based on Foata normal form. 5655/39943 useless extension candidates. Maximal degree in co-relation 48774. Up to 34640 conditions per place. [2023-08-03 21:47:18,360 INFO L140 encePairwiseOnDemand]: 521/558 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2023-08-03 21:47:18,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 156 transitions, 598 flow [2023-08-03 21:47:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 21:47:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 21:47:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1563 transitions. [2023-08-03 21:47:18,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5602150537634408 [2023-08-03 21:47:18,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1563 transitions. [2023-08-03 21:47:18,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1563 transitions. [2023-08-03 21:47:18,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 21:47:18,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1563 transitions. [2023-08-03 21:47:18,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 312.6) internal successors, (1563), 5 states have internal predecessors, (1563), 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) [2023-08-03 21:47:18,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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) [2023-08-03 21:47:18,394 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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) [2023-08-03 21:47:18,395 INFO L175 Difference]: Start difference. First operand has 94 places, 128 transitions, 274 flow. Second operand 5 states and 1563 transitions. [2023-08-03 21:47:18,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 156 transitions, 598 flow [2023-08-03 21:47:18,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 156 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 21:47:18,401 INFO L231 Difference]: Finished difference. Result has 95 places, 0 transitions, 0 flow [2023-08-03 21:47:18,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=95, PETRI_TRANSITIONS=0} [2023-08-03 21:47:18,405 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2023-08-03 21:47:18,405 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 0 transitions, 0 flow [2023-08-03 21:47:18,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 273.6) internal successors, (1368), 5 states have internal predecessors, (1368), 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) [2023-08-03 21:47:18,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-03 21:47:18,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-03 21:47:18,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 21:47:18,612 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 21:47:18,613 INFO L307 ceAbstractionStarter]: Result for error location InUseError was SAFE (1/2) [2023-08-03 21:47:18,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,669 INFO L124 PetriNetUnfolderBase]: 76/550 cut-off events. [2023-08-03 21:47:18,669 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-03 21:47:18,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-03 21:47:18,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,675 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 21:47:18,675 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,677 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-03 21:47:18,715 INFO L124 PetriNetUnfolderBase]: 76/550 cut-off events. [2023-08-03 21:47:18,715 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-03 21:47:18,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-03 21:47:18,727 INFO L119 LiptonReduction]: Number of co-enabled transitions 47892 [2023-08-03 21:47:27,756 INFO L134 LiptonReduction]: Checked pairs total: 110623 [2023-08-03 21:47:27,757 INFO L136 LiptonReduction]: Total number of compositions: 237 [2023-08-03 21:47:27,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 21:47:27,759 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=true, 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;@362081ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 21:47:27,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 21:47:27,764 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 21:47:27,764 INFO L124 PetriNetUnfolderBase]: 8/78 cut-off events. [2023-08-03 21:47:27,764 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-03 21:47:27,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 21:47:27,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 21:47:27,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-03 21:47:27,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 21:47:27,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1887294229, now seen corresponding path program 1 times [2023-08-03 21:47:27,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 21:47:27,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218869493] [2023-08-03 21:47:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 21:47:27,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 21:47:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 21:47:27,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 21:47:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 21:47:27,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 21:47:27,881 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 21:47:27,881 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-03 21:47:27,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 21:47:27,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-08-03 21:47:27,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-03 21:47:27,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 21:47:27,882 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 21:47:27,882 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2023-08-03 21:47:27,884 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 21:47:27,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 21:47:27,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 09:47:27 BasicIcfg [2023-08-03 21:47:27,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 21:47:27,943 INFO L158 Benchmark]: Toolchain (without parser) took 31059.82ms. Allocated memory was 480.2MB in the beginning and 931.1MB in the end (delta: 450.9MB). Free memory was 439.8MB in the beginning and 291.8MB in the end (delta: 148.0MB). Peak memory consumption was 601.9MB. Max. memory is 16.0GB. [2023-08-03 21:47:27,944 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 396.4MB. Free memory is still 352.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 21:47:27,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.81ms. Allocated memory is still 480.2MB. Free memory was 439.2MB in the beginning and 399.0MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-03 21:47:27,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.95ms. Allocated memory is still 480.2MB. Free memory was 399.0MB in the beginning and 395.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 21:47:27,944 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 480.2MB. Free memory was 395.7MB in the beginning and 393.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 21:47:27,944 INFO L158 Benchmark]: RCFGBuilder took 453.76ms. Allocated memory is still 480.2MB. Free memory was 393.1MB in the beginning and 436.4MB in the end (delta: -43.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.0GB. [2023-08-03 21:47:27,945 INFO L158 Benchmark]: TraceAbstraction took 30146.42ms. Allocated memory was 480.2MB in the beginning and 931.1MB in the end (delta: 450.9MB). Free memory was 435.4MB in the beginning and 291.8MB in the end (delta: 143.6MB). Peak memory consumption was 595.5MB. Max. memory is 16.0GB. [2023-08-03 21:47:27,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 396.4MB. Free memory is still 352.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 400.81ms. Allocated memory is still 480.2MB. Free memory was 439.2MB in the beginning and 399.0MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.95ms. Allocated memory is still 480.2MB. Free memory was 399.0MB in the beginning and 395.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 480.2MB. Free memory was 395.7MB in the beginning and 393.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 453.76ms. Allocated memory is still 480.2MB. Free memory was 393.1MB in the beginning and 436.4MB in the end (delta: -43.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.0GB. * TraceAbstraction took 30146.42ms. Allocated memory was 480.2MB in the beginning and 931.1MB in the end (delta: 450.9MB). Free memory was 435.4MB in the beginning and 291.8MB in the end (delta: 143.6MB). Peak memory consumption was 595.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 210 PlacesBefore, 63 PlacesAfterwards, 235 TransitionsBefore, 84 TransitionsAfterwards, 17004 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 116 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 182 TotalNumberOfCompositions, 37879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13632, independent: 13048, independent conditional: 0, independent unconditional: 13048, dependent: 584, dependent conditional: 0, dependent unconditional: 584, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8177, independent: 8060, independent conditional: 0, independent unconditional: 8060, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13632, independent: 4988, independent conditional: 0, independent unconditional: 4988, dependent: 467, dependent conditional: 0, dependent unconditional: 467, unknown: 8177, unknown conditional: 0, unknown unconditional: 8177] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 258, Positive conditional cache size: 0, Positive unconditional cache size: 258, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3s, 283 PlacesBefore, 94 PlacesAfterwards, 320 TransitionsBefore, 128 TransitionsAfterwards, 47892 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 238 TotalNumberOfCompositions, 110000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35169, independent: 34326, independent conditional: 0, independent unconditional: 34326, dependent: 843, dependent conditional: 0, dependent unconditional: 843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22560, independent: 22421, independent conditional: 0, independent unconditional: 22421, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35169, independent: 11905, independent conditional: 0, independent unconditional: 11905, dependent: 704, dependent conditional: 0, dependent unconditional: 704, unknown: 22560, unknown conditional: 0, unknown unconditional: 22560] , Statistics on independence cache: Total cache size (in pairs): 579, Positive cache size: 509, Positive conditional cache size: 0, Positive unconditional cache size: 509, Negative cache size: 70, Negative conditional cache size: 0, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 283 PlacesBefore, 94 PlacesAfterwards, 320 TransitionsBefore, 127 TransitionsAfterwards, 47892 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 163 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 4 ChoiceCompositions, 237 TotalNumberOfCompositions, 110623 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35300, independent: 34438, independent conditional: 0, independent unconditional: 34438, dependent: 862, dependent conditional: 0, dependent unconditional: 862, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22625, independent: 22473, independent conditional: 0, independent unconditional: 22473, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35300, independent: 11965, independent conditional: 0, independent unconditional: 11965, dependent: 710, dependent conditional: 0, dependent unconditional: 710, unknown: 22625, unknown conditional: 0, unknown unconditional: 22625] , Statistics on independence cache: Total cache size (in pairs): 665, Positive cache size: 591, Positive conditional cache size: 0, Positive unconditional cache size: 591, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1267] 0 struct s *p; [L1268] 0 A = malloc(sizeof(struct s)) [L1269] EXPR 0 \read(*A) [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x [L1247] 0 p -> next = ((void *)0) [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[2]; [L1270] 0 int i=0; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={11:0}] [L1270] COND TRUE 0 i<2 [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=10, t_ids={11:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={-1:0}, p={-1:0}, p={9:0}, p={9:0}, x=3, x=7] [L1247] 1 p -> next = ((void *)0) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={-1:0}, p={-1:0}, p={9:0}, p={9:0}, x=3, x=7] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={-1:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={9:0}, p={9:0}] [L1250] 1 p->next = *list [L1251] 1 *list = p VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={9:0}, p={9:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) [L1262] EXPR 1 p->datum [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) [L1235] 1 reach_error() VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(cond)=0, __global_lock={3:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 279 locations, 4 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: 9.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 346 locations, 5 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: 11.6s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 11/16 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 346 locations, 5 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: 9.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-03 21:47:27,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...