/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:44:25,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:44:25,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:44:25,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:44:25,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:44:25,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:44:25,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:44:25,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:44:25,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:44:25,179 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:44:25,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:44:25,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:44:25,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:44:25,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:44:25,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:44:25,180 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:44:25,181 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:44:25,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:44:25,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:44:25,181 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:44:25,182 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:44:25,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:44:25,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:44:25,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:44:25,485 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:44:25,485 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:44:25,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-04-13 19:44:26,764 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2636132/10e11fc05b254dab8c7ca8dca1b7f4b6/FLAGd47cc5e8c [2025-04-13 19:44:27,073 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:44:27,073 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-04-13 19:44:27,089 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2636132/10e11fc05b254dab8c7ca8dca1b7f4b6/FLAGd47cc5e8c [2025-04-13 19:44:27,814 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2636132/10e11fc05b254dab8c7ca8dca1b7f4b6 [2025-04-13 19:44:27,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:44:27,819 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:44:27,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:44:27,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:44:27,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:44:27,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:44:27" (1/1) ... [2025-04-13 19:44:27,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12289e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:27, skipping insertion in model container [2025-04-13 19:44:27,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:44:27" (1/1) ... [2025-04-13 19:44:27,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:44:28,242 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2025-04-13 19:44:28,257 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,259 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,259 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,261 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:44:28,333 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:44:28,379 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2025-04-13 19:44:28,381 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,382 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,382 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,382 WARN L1730 CHandler]: Possible shadowing of function new [2025-04-13 19:44:28,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:44:28,437 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:44:28,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28 WrapperNode [2025-04-13 19:44:28,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:44:28,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:44:28,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:44:28,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:44:28,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,496 INFO L138 Inliner]: procedures = 279, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 240 [2025-04-13 19:44:28,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:44:28,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:44:28,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:44:28,497 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:44:28,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,537 INFO L175 MemorySlicer]: Split 96 memory accesses to 4 slices as follows [2, 5, 87, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0]. The 12 writes are split as follows [0, 0, 11, 1]. [2025-04-13 19:44:28,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,545 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:44:28,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:44:28,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:44:28,555 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:44:28,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (1/1) ... [2025-04-13 19:44:28,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:44:28,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:44:28,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-13 19:44:28,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 19:44:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 19:44:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 19:44:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-13 19:44:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-13 19:44:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:44:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:44:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 19:44:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 19:44:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:44:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:44:28,621 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:44:28,746 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:44:28,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:44:29,081 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:44:29,082 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:44:29,082 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:44:29,587 WARN L179 LargeBlockEncoding]: Complex 2:3 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,590 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,607 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,609 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,610 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,611 WARN L179 LargeBlockEncoding]: Complex 4:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,614 WARN L179 LargeBlockEncoding]: Complex 3:3 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:44:29,621 INFO L313 CfgBuilder]: Removed 5 assume(true) statements. [2025-04-13 19:44:29,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:44:29 BoogieIcfgContainer [2025-04-13 19:44:29,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:44:29,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:44:29,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:44:29,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:44:29,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:44:27" (1/3) ... [2025-04-13 19:44:29,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6095ec38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:44:29, skipping insertion in model container [2025-04-13 19:44:29,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:44:28" (2/3) ... [2025-04-13 19:44:29,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6095ec38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:44:29, skipping insertion in model container [2025-04-13 19:44:29,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:44:29" (3/3) ... [2025-04-13 19:44:29,628 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2025-04-13 19:44:29,640 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:44:29,641 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_91-arrayloop2_racefree.i that has 2 procedures, 28 locations, 53 edges, 1 initial locations, 11 loop locations, and 1 error locations. [2025-04-13 19:44:29,641 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:44:29,684 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-13 19:44:29,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 54 transitions, 115 flow [2025-04-13 19:44:29,739 INFO L116 PetriNetUnfolderBase]: 24/54 cut-off events. [2025-04-13 19:44:29,741 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-13 19:44:29,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 24/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 41. Up to 7 conditions per place. [2025-04-13 19:44:29,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 54 transitions, 115 flow [2025-04-13 19:44:29,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 47 transitions, 98 flow [2025-04-13 19:44:29,755 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:44:29,765 INFO L340 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2b387103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:44:29,765 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 19:44:29,773 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:44:29,773 INFO L116 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-04-13 19:44:29,774 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:44:29,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:44:29,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-04-13 19:44:29,775 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 19:44:29,779 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:44:29,780 INFO L85 PathProgramCache]: Analyzing trace with hash 22083021, now seen corresponding path program 1 times [2025-04-13 19:44:29,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:44:29,785 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716809818] [2025-04-13 19:44:29,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:44:29,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:44:29,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-13 19:44:29,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-13 19:44:29,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:44:29,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:29,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:44:29,898 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716809818] [2025-04-13 19:44:29,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716809818] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:44:29,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:44:29,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 19:44:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305112866] [2025-04-13 19:44:29,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:44:29,904 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 19:44:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:44:29,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 19:44:29,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 19:44:29,924 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 54 [2025-04-13 19:44:29,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 47 transitions, 98 flow. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-04-13 19:44:29,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:44:29,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 54 [2025-04-13 19:44:29,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:44:30,134 INFO L116 PetriNetUnfolderBase]: 51/117 cut-off events. [2025-04-13 19:44:30,134 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:44:30,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 117 events. 51/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 38 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 221. Up to 114 conditions per place. [2025-04-13 19:44:30,136 INFO L140 encePairwiseOnDemand]: 38/54 looper letters, 29 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2025-04-13 19:44:30,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 124 flow [2025-04-13 19:44:30,138 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 19:44:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-13 19:44:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 49 transitions. [2025-04-13 19:44:30,147 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2025-04-13 19:44:30,149 INFO L175 Difference]: Start difference. First operand has 30 places, 47 transitions, 98 flow. Second operand 2 states and 49 transitions. [2025-04-13 19:44:30,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 124 flow [2025-04-13 19:44:30,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-13 19:44:30,152 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 66 flow [2025-04-13 19:44:30,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2025-04-13 19:44:30,156 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 0 predicate places. [2025-04-13 19:44:30,156 INFO L485 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 66 flow [2025-04-13 19:44:30,156 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-04-13 19:44:30,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:44:30,156 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-04-13 19:44:30,157 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:44:30,157 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 19:44:30,157 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:44:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash 681000359, now seen corresponding path program 1 times [2025-04-13 19:44:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:44:30,157 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578829226] [2025-04-13 19:44:30,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:44:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:44:30,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-13 19:44:30,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-13 19:44:30,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:44:30,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:30,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:44:30,352 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578829226] [2025-04-13 19:44:30,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578829226] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:44:30,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:44:30,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 19:44:30,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494240118] [2025-04-13 19:44:30,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:44:30,354 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:44:30,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:44:30,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:44:30,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:44:30,354 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 54 [2025-04-13 19:44:30,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-04-13 19:44:30,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:44:30,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 54 [2025-04-13 19:44:30,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:44:30,910 INFO L116 PetriNetUnfolderBase]: 51/118 cut-off events. [2025-04-13 19:44:30,910 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:44:30,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 118 events. 51/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 38 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 234. Up to 114 conditions per place. [2025-04-13 19:44:30,911 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2025-04-13 19:44:30,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 128 flow [2025-04-13 19:44:30,911 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:44:30,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:44:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-04-13 19:44:30,912 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.22839506172839505 [2025-04-13 19:44:30,912 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 66 flow. Second operand 3 states and 37 transitions. [2025-04-13 19:44:30,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 128 flow [2025-04-13 19:44:30,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 128 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-13 19:44:30,913 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 78 flow [2025-04-13 19:44:30,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2025-04-13 19:44:30,914 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2025-04-13 19:44:30,914 INFO L485 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 78 flow [2025-04-13 19:44:30,914 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-04-13 19:44:30,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:44:30,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-13 19:44:30,914 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:44:30,915 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 19:44:30,915 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:44:30,915 INFO L85 PathProgramCache]: Analyzing trace with hash -367398643, now seen corresponding path program 1 times [2025-04-13 19:44:30,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:44:30,915 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639216544] [2025-04-13 19:44:30,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:44:30,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:44:30,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-13 19:44:30,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-13 19:44:30,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:44:30,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:31,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:44:31,200 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639216544] [2025-04-13 19:44:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639216544] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 19:44:31,200 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752430349] [2025-04-13 19:44:31,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:44:31,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:44:31,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:44:31,203 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) [2025-04-13 19:44:31,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-13 19:44:31,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-13 19:44:31,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-13 19:44:31,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:44:31,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:31,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-13 19:44:31,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 19:44:31,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:31,558 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2025-04-13 19:44:31,566 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 50 [2025-04-13 19:44:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:31,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 19:44:31,867 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-13 19:44:31,867 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 336 treesize of output 357 [2025-04-13 19:44:31,908 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-13 19:44:31,909 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 330 treesize of output 351 [2025-04-13 19:44:31,961 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-13 19:44:31,962 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 345 [2025-04-13 19:44:32,050 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-13 19:44:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:32,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752430349] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 19:44:32,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 19:44:32,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-04-13 19:44:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807697602] [2025-04-13 19:44:32,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 19:44:32,159 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 19:44:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:44:32,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 19:44:32,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-04-13 19:44:32,160 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 54 [2025-04-13 19:44:32,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2025-04-13 19:44:32,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:44:32,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 54 [2025-04-13 19:44:32,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:44:33,418 WARN L532 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2025-04-13 19:44:34,559 INFO L116 PetriNetUnfolderBase]: 51/121 cut-off events. [2025-04-13 19:44:34,559 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:44:34,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 121 events. 51/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 38 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 248. Up to 114 conditions per place. [2025-04-13 19:44:34,560 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2025-04-13 19:44:34,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 156 flow [2025-04-13 19:44:34,560 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 19:44:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 19:44:34,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2025-04-13 19:44:34,561 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.14814814814814814 [2025-04-13 19:44:34,561 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 78 flow. Second operand 6 states and 48 transitions. [2025-04-13 19:44:34,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 156 flow [2025-04-13 19:44:34,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 152 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-13 19:44:34,562 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 110 flow [2025-04-13 19:44:34,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2025-04-13 19:44:34,563 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places. [2025-04-13 19:44:34,563 INFO L485 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 110 flow [2025-04-13 19:44:34,563 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2025-04-13 19:44:34,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:44:34,563 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2025-04-13 19:44:34,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-13 19:44:34,767 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:44:34,767 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 19:44:34,768 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:44:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash -849615065, now seen corresponding path program 2 times [2025-04-13 19:44:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:44:34,768 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451514040] [2025-04-13 19:44:34,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:44:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:44:34,834 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 9 statements into 2 equivalence classes. [2025-04-13 19:44:34,871 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 19:44:34,871 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 19:44:34,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:35,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:44:35,283 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451514040] [2025-04-13 19:44:35,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451514040] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 19:44:35,284 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112926281] [2025-04-13 19:44:35,284 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:44:35,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:44:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:44:35,286 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 19:44:35,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-13 19:44:35,435 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 9 statements into 2 equivalence classes. [2025-04-13 19:44:35,542 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 19:44:35,542 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 19:44:35,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:35,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-13 19:44:35,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 19:44:35,591 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,599 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2025-04-13 19:44:35,622 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,626 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,626 WARN L181 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,629 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,631 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2025-04-13 19:44:35,635 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-04-13 19:44:35,639 WARN L181 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,645 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,656 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:35,665 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2025-04-13 19:44:35,668 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-04-13 19:44:35,676 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,722 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2025-04-13 19:44:35,726 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,745 WARN L181 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,749 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,754 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,756 WARN L181 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,758 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,760 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2025-04-13 19:44:35,764 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2025-04-13 19:44:35,767 WARN L181 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,771 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,781 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:35,790 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 28 [2025-04-13 19:44:35,795 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2025-04-13 19:44:35,797 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,798 WARN L195 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,802 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,809 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,810 WARN L195 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:35,815 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2025-04-13 19:44:35,818 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-04-13 19:44:35,825 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,859 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,864 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2025-04-13 19:44:35,879 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,881 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2025-04-13 19:44:35,883 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2025-04-13 19:44:35,888 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,895 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-13 19:44:35,902 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:35,904 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 28 [2025-04-13 19:44:35,906 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2025-04-13 19:44:35,908 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,909 WARN L195 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,912 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-13 19:44:35,913 WARN L195 Elim1Store]: Array PQE input equivalent to false [2025-04-13 19:44:35,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-13 19:44:35,920 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2025-04-13 19:44:35,922 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-04-13 19:44:35,932 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,938 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2025-04-13 19:44:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:35,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 19:44:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112926281] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 19:44:36,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 19:44:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2025-04-13 19:44:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094591358] [2025-04-13 19:44:36,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 19:44:36,208 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 19:44:36,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:44:36,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 19:44:36,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=139, Unknown=0, NotChecked=0, Total=240 [2025-04-13 19:44:36,210 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 54 [2025-04-13 19:44:36,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 110 flow. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2025-04-13 19:44:36,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:44:36,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 54 [2025-04-13 19:44:36,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:44:41,180 WARN L532 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2025-04-13 19:44:42,343 INFO L116 PetriNetUnfolderBase]: 51/127 cut-off events. [2025-04-13 19:44:42,344 INFO L117 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-04-13 19:44:42,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 127 events. 51/127 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 38 based on Foata normal form. 6/101 useless extension candidates. Maximal degree in co-relation 282. Up to 114 conditions per place. [2025-04-13 19:44:42,344 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 11 changer transitions 0/41 dead transitions. [2025-04-13 19:44:42,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 41 transitions, 224 flow [2025-04-13 19:44:42,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-13 19:44:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-13 19:44:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 69 transitions. [2025-04-13 19:44:42,346 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.10648148148148148 [2025-04-13 19:44:42,346 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 110 flow. Second operand 12 states and 69 transitions. [2025-04-13 19:44:42,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 41 transitions, 224 flow [2025-04-13 19:44:42,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 210 flow, removed 6 selfloop flow, removed 1 redundant places. [2025-04-13 19:44:42,347 INFO L231 Difference]: Finished difference. Result has 56 places, 41 transitions, 180 flow [2025-04-13 19:44:42,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=180, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2025-04-13 19:44:42,348 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 26 predicate places. [2025-04-13 19:44:42,348 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 180 flow [2025-04-13 19:44:42,348 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2025-04-13 19:44:42,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:44:42,348 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2025-04-13 19:44:42,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-13 19:44:42,548 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-13 19:44:42,549 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 19:44:42,549 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:44:42,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1361935719, now seen corresponding path program 3 times [2025-04-13 19:44:42,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:44:42,549 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346610925] [2025-04-13 19:44:42,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 19:44:42,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:44:42,665 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 6 equivalence classes. [2025-04-13 19:44:45,143 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 19:44:45,144 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-13 19:44:45,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:44:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:44:46,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:44:46,269 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346610925] [2025-04-13 19:44:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346610925] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 19:44:46,269 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138968314] [2025-04-13 19:44:46,269 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 19:44:46,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:44:46,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:44:46,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 19:44:46,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-13 19:44:46,549 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 6 equivalence classes. Received shutdown request... [2025-04-13 19:59:09,764 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-13 19:59:09,771 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-13 19:59:10,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2025-04-13 19:59:10,974 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2025-04-13 19:59:11,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2025-04-13 19:59:11,026 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-13 19:59:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-04-13 19:59:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-04-13 19:59:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939894023] [2025-04-13 19:59:11,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-04-13 19:59:11,026 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-13 19:59:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:59:11,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-13 19:59:11,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-04-13 19:59:11,027 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 54 [2025-04-13 19:59:11,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 180 flow. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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) [2025-04-13 19:59:11,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:59:11,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 54 [2025-04-13 19:59:11,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:59:11,029 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2025-04-13 19:59:11,029 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 19:59:11,029 WARN L610 AbstractCegarLoop]: Verification canceled: while executing Executor. [2025-04-13 19:59:11,030 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-04-13 19:59:11,030 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-04-13 19:59:11,030 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2025-04-13 19:59:11,033 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:59:11,033 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:59:11,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:59:11 BasicIcfg [2025-04-13 19:59:11,036 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:59:11,036 INFO L158 Benchmark]: Toolchain (without parser) took 883218.87ms. Allocated memory was 155.2MB in the beginning and 1.0GB in the end (delta: 859.8MB). Free memory was 106.0MB in the beginning and 841.5MB in the end (delta: -735.6MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2025-04-13 19:59:11,036 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:59:11,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.89ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 69.9MB in the end (delta: 35.3MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2025-04-13 19:59:11,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.65ms. Allocated memory is still 155.2MB. Free memory was 69.9MB in the beginning and 66.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:59:11,037 INFO L158 Benchmark]: Boogie Preprocessor took 57.48ms. Allocated memory is still 155.2MB. Free memory was 66.6MB in the beginning and 63.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:59:11,037 INFO L158 Benchmark]: RCFGBuilder took 1066.01ms. Allocated memory is still 155.2MB. Free memory was 63.3MB in the beginning and 82.2MB in the end (delta: -18.9MB). Peak memory consumption was 50.2MB. Max. memory is 8.0GB. [2025-04-13 19:59:11,037 INFO L158 Benchmark]: TraceAbstraction took 881413.51ms. Allocated memory was 155.2MB in the beginning and 1.0GB in the end (delta: 859.8MB). Free memory was 82.2MB in the beginning and 841.5MB in the end (delta: -759.4MB). Peak memory consumption was 98.4MB. Max. memory is 8.0GB. [2025-04-13 19:59:11,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 619.89ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 69.9MB in the end (delta: 35.3MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.65ms. Allocated memory is still 155.2MB. Free memory was 69.9MB in the beginning and 66.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.48ms. Allocated memory is still 155.2MB. Free memory was 66.6MB in the beginning and 63.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 1066.01ms. Allocated memory is still 155.2MB. Free memory was 63.3MB in the beginning and 82.2MB in the end (delta: -18.9MB). Peak memory consumption was 50.2MB. Max. memory is 8.0GB. * TraceAbstraction took 881413.51ms. Allocated memory was 155.2MB in the beginning and 1.0GB in the end (delta: 859.8MB). Free memory was 82.2MB in the beginning and 841.5MB in the end (delta: -759.4MB). Peak memory consumption was 98.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 50 locations, 94 edges, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 881.3s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 23, 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: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 60 ConstructedInterpolants, 3 QuantifiedInterpolants, 313 SizeOfPredicates, 61 NumberOfNonLiveVariables, 1032 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 0/88 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown