/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:31:54,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:31:54,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 18:31:54,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:31:54,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:31:54,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:31:54,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:31:54,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:31:54,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:31:54,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:31:54,719 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:31:54,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:31:54,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:31:54,720 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:31:54,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:31:54,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:31:54,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:31:54,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:31:54,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:31:54,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:31:54,722 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:31:54,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:31:54,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:31:54,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:31:54,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:31:54,730 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:31:54,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:31:54,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:31:54,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:31:54,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:31:54,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:31:54,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:31:54,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:31:54,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:31:54,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:31:54,733 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:31:55,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:31:55,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:31:55,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:31:55,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:31:55,076 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:31:55,078 INFO L431 ainManager$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 [2023-08-25 18:31:56,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:31:56,482 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:31:56,483 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-08-25 18:31:56,508 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46572049a/9d4fa022443749fa9632e537a17cb1a8/FLAG960c41846 [2023-08-25 18:31:56,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46572049a/9d4fa022443749fa9632e537a17cb1a8 [2023-08-25 18:31:56,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:31:56,777 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:31:56,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:31:56,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:31:56,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:31:56,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:31:56" (1/1) ... [2023-08-25 18:31:56,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71eeeb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:56, skipping insertion in model container [2023-08-25 18:31:56,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:31:56" (1/1) ... [2023-08-25 18:31:56,856 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:31:57,306 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,307 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,309 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,311 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:31:57,371 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:31:57,397 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 18:31:57,399 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 18:31:57,416 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,417 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,417 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,418 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 18:31:57,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:31:57,490 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:31:57,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57 WrapperNode [2023-08-25 18:31:57,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:31:57,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:31:57,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:31:57,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:31:57,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,564 INFO L138 Inliner]: procedures = 277, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 303 [2023-08-25 18:31:57,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:31:57,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:31:57,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:31:57,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:31:57,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:31:57,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:31:57,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:31:57,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:31:57,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (1/1) ... [2023-08-25 18:31:57,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:31:57,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:31:57,655 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) [2023-08-25 18:31:57,657 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 [2023-08-25 18:31:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 18:31:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 18:31:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:31:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 18:31:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 18:31:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 18:31:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:31:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:31:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:31:57,687 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 18:31:57,810 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:31:57,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:31:58,372 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:31:58,387 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:31:58,387 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-25 18:31:58,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:31:58 BoogieIcfgContainer [2023-08-25 18:31:58,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:31:58,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:31:58,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:31:58,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:31:58,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:31:56" (1/3) ... [2023-08-25 18:31:58,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e534af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:31:58, skipping insertion in model container [2023-08-25 18:31:58,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:31:57" (2/3) ... [2023-08-25 18:31:58,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e534af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:31:58, skipping insertion in model container [2023-08-25 18:31:58,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:31:58" (3/3) ... [2023-08-25 18:31:58,396 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-08-25 18:31:58,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:31:58,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-25 18:31:58,432 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:31:58,553 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 18:31:58,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 322 transitions, 652 flow [2023-08-25 18:31:58,712 INFO L124 PetriNetUnfolderBase]: 27/346 cut-off events. [2023-08-25 18:31:58,713 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-25 18:31:58,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 346 events. 27/346 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 888 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 173. Up to 4 conditions per place. [2023-08-25 18:31:58,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 322 transitions, 652 flow [2023-08-25 18:31:58,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 307 transitions, 619 flow [2023-08-25 18:31:58,734 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:31:58,742 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 307 transitions, 619 flow [2023-08-25 18:31:58,745 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 307 transitions, 619 flow [2023-08-25 18:31:58,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 307 transitions, 619 flow [2023-08-25 18:31:58,816 INFO L124 PetriNetUnfolderBase]: 26/331 cut-off events. [2023-08-25 18:31:58,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:31:58,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 331 events. 26/331 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 771 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 166. Up to 4 conditions per place. [2023-08-25 18:31:58,827 INFO L119 LiptonReduction]: Number of co-enabled transitions 8220 [2023-08-25 18:32:39,958 WARN L234 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 112 DAG size of output: 103 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:32:48,180 WARN L234 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 112 DAG size of output: 103 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:34:01,061 WARN L234 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 183 DAG size of output: 181 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:34:24,369 WARN L234 SmtUtils]: Spent 23.31s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:35:31,791 WARN L234 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 183 DAG size of output: 181 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:35:53,939 WARN L234 SmtUtils]: Spent 22.14s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:40:08,739 WARN L234 SmtUtils]: Spent 4.25m on a formula simplification. DAG size of input: 266 DAG size of output: 260 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:42:29,355 WARN L234 SmtUtils]: Spent 2.34m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2023-08-25 18:46:41,955 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 18:46:43,156 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-08-25 18:46:43,219 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:167) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition(TransFormulaUtils.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgEdgeBuilder.constructSequentialComposition(IcfgEdgeBuilder.java:118) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:316) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:129) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-25 18:46:43,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2023-08-25 18:46:43,224 INFO L158 Benchmark]: Toolchain (without parser) took 886446.91ms. Allocated memory was 379.6MB in the beginning and 559.9MB in the end (delta: 180.4MB). Free memory was 353.2MB in the beginning and 362.0MB in the end (delta: -8.8MB). Peak memory consumption was 217.7MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,225 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 379.6MB. Free memory was 357.8MB in the beginning and 357.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:46:43,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.32ms. Allocated memory is still 379.6MB. Free memory was 352.5MB in the beginning and 321.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.24ms. Allocated memory is still 379.6MB. Free memory was 321.0MB in the beginning and 316.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,226 INFO L158 Benchmark]: Boogie Preprocessor took 62.21ms. Allocated memory is still 379.6MB. Free memory was 316.9MB in the beginning and 313.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,227 INFO L158 Benchmark]: RCFGBuilder took 760.55ms. Allocated memory is still 379.6MB. Free memory was 313.4MB in the beginning and 279.1MB in the end (delta: 34.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,227 INFO L158 Benchmark]: TraceAbstraction took 884832.08ms. Allocated memory was 379.6MB in the beginning and 559.9MB in the end (delta: 180.4MB). Free memory was 278.4MB in the beginning and 362.0MB in the end (delta: -83.6MB). Peak memory consumption was 142.2MB. Max. memory is 16.0GB. [2023-08-25 18:46:43,229 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 379.6MB. Free memory was 357.8MB in the beginning and 357.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 713.32ms. Allocated memory is still 379.6MB. Free memory was 352.5MB in the beginning and 321.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 73.24ms. Allocated memory is still 379.6MB. Free memory was 321.0MB in the beginning and 316.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 62.21ms. Allocated memory is still 379.6MB. Free memory was 316.9MB in the beginning and 313.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 760.55ms. Allocated memory is still 379.6MB. Free memory was 313.4MB in the beginning and 279.1MB in the end (delta: 34.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 884832.08ms. Allocated memory was 379.6MB in the beginning and 559.9MB in the end (delta: 180.4MB). Free memory was 278.4MB in the beginning and 362.0MB in the end (delta: -83.6MB). Peak memory consumption was 142.2MB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown