/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:03:17,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:03:17,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:03:17,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:03:17,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:03:17,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:03:17,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:03:17,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:03:17,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:03:17,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:03:17,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:03:17,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:03:17,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:03:17,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:03:17,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:03:17,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:03:17,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:03:17,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:03:17,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:03:17,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:03:17,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:03:17,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:03:17,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:03:17,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:03:17,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:03:17,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:03:17,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:03:17,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:03:17,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 19:03:17,405 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:03:17,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:03:17,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:03:17,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:03:17,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:03:17,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:03:17,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:03:17,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:03:17,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:03:17,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:03:17,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:03:17,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:03:17,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:03:17,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:03:17,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:03:17,418 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:03:17,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:03:17,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:03:17,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:03:17,651 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:03:17,652 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:03:17,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-01-27 19:03:18,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:03:19,006 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:03:19,006 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-01-27 19:03:19,016 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f584826e4/1d018badf0814c98bd21a3a8e13d5679/FLAGc1a143f66 [2023-01-27 19:03:19,030 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f584826e4/1d018badf0814c98bd21a3a8e13d5679 [2023-01-27 19:03:19,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:03:19,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:03:19,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:03:19,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:03:19,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:03:19,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3dfbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19, skipping insertion in model container [2023-01-27 19:03:19,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:03:19,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:03:19,249 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-01-27 19:03:19,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:03:19,424 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:03:19,440 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-01-27 19:03:19,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:03:19,515 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:03:19,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19 WrapperNode [2023-01-27 19:03:19,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:03:19,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:03:19,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:03:19,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:03:19,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,571 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-01-27 19:03:19,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:03:19,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:03:19,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:03:19,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:03:19,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:03:19,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:03:19,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:03:19,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:03:19,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (1/1) ... [2023-01-27 19:03:19,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:03:19,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:03:19,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 19:03:19,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 19:03:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:03:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:03:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:03:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:03:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:03:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:03:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:03:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:03:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:03:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:03:19,682 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:03:19,796 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:03:19,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:03:19,936 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:03:19,941 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:03:19,942 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:03:19,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:03:19 BoogieIcfgContainer [2023-01-27 19:03:19,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:03:19,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:03:19,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:03:19,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:03:19,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:03:19" (1/3) ... [2023-01-27 19:03:19,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34114cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:03:19, skipping insertion in model container [2023-01-27 19:03:19,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:03:19" (2/3) ... [2023-01-27 19:03:19,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34114cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:03:19, skipping insertion in model container [2023-01-27 19:03:19,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:03:19" (3/3) ... [2023-01-27 19:03:19,951 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2023-01-27 19:03:19,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:03:19,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:03:19,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:03:20,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:03:20,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 129 flow [2023-01-27 19:03:20,075 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2023-01-27 19:03:20,075 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:03:20,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2023-01-27 19:03:20,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 129 flow [2023-01-27 19:03:20,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-01-27 19:03:20,084 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:03:20,097 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:03:20,106 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:03:20,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-01-27 19:03:20,130 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-01-27 19:03:20,130 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:03:20,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-27 19:03:20,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 264 [2023-01-27 19:03:22,088 INFO L134 LiptonReduction]: Checked pairs total: 710 [2023-01-27 19:03:22,089 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-27 19:03:22,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:03:22,106 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33f46bdd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:03:22,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:03:22,109 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-01-27 19:03:22,109 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:03:22,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:03:22,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 19:03:22,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:03:22,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:03:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1909908932, now seen corresponding path program 1 times [2023-01-27 19:03:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:03:22,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462187150] [2023-01-27 19:03:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:03:22,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:03:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:03:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:03:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:03:22,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462187150] [2023-01-27 19:03:22,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462187150] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:03:22,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:03:22,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 19:03:22,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758741923] [2023-01-27 19:03:22,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:03:22,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:03:22,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:03:22,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:03:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:03:22,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 102 [2023-01-27 19:03:22,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:03:22,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 102 [2023-01-27 19:03:22,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:03:22,490 INFO L130 PetriNetUnfolder]: 11/39 cut-off events. [2023-01-27 19:03:22,490 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:03:22,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 39 events. 11/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 7 based on Foata normal form. 4/43 useless extension candidates. Maximal degree in co-relation 69. Up to 21 conditions per place. [2023-01-27 19:03:22,492 INFO L137 encePairwiseOnDemand]: 98/102 looper letters, 9 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2023-01-27 19:03:22,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 55 flow [2023-01-27 19:03:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:03:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:03:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-01-27 19:03:22,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5816993464052288 [2023-01-27 19:03:22,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-01-27 19:03:22,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-01-27 19:03:22,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:03:22,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-01-27 19:03:22,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,527 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 178 transitions. [2023-01-27 19:03:22,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 55 flow [2023-01-27 19:03:22,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:03:22,532 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow [2023-01-27 19:03:22,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2023-01-27 19:03:22,539 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-01-27 19:03:22,539 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow [2023-01-27 19:03:22,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:03:22,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:03:22,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:03:22,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:03:22,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:03:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1468011745, now seen corresponding path program 1 times [2023-01-27 19:03:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:03:22,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913518067] [2023-01-27 19:03:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:03:22,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:03:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:03:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:03:22,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:03:22,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913518067] [2023-01-27 19:03:22,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913518067] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:03:22,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:03:22,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 19:03:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712044701] [2023-01-27 19:03:22,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:03:22,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:03:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:03:22,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:03:22,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:03:22,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 102 [2023-01-27 19:03:22,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:03:22,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 102 [2023-01-27 19:03:22,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:03:22,747 INFO L130 PetriNetUnfolder]: 10/34 cut-off events. [2023-01-27 19:03:22,748 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 19:03:22,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 34 events. 10/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 2 based on Foata normal form. 5/39 useless extension candidates. Maximal degree in co-relation 70. Up to 22 conditions per place. [2023-01-27 19:03:22,748 INFO L137 encePairwiseOnDemand]: 98/102 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-01-27 19:03:22,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 13 transitions, 61 flow [2023-01-27 19:03:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 19:03:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 19:03:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2023-01-27 19:03:22,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-01-27 19:03:22,760 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 170 transitions. [2023-01-27 19:03:22,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 170 transitions. [2023-01-27 19:03:22,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:03:22,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 170 transitions. [2023-01-27 19:03:22,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,763 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,763 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 4 states and 170 transitions. [2023-01-27 19:03:22,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 13 transitions, 61 flow [2023-01-27 19:03:22,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 52 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 19:03:22,764 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-01-27 19:03:22,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-01-27 19:03:22,765 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2023-01-27 19:03:22,765 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-01-27 19:03:22,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:03:22,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:03:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:03:22,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 19:03:22,774 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-27 19:03:22,783 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:03:22,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:03:22,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:03:22 BasicIcfg [2023-01-27 19:03:22,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:03:22,788 INFO L158 Benchmark]: Toolchain (without parser) took 3754.66ms. Allocated memory was 358.6MB in the beginning and 432.0MB in the end (delta: 73.4MB). Free memory was 317.7MB in the beginning and 386.4MB in the end (delta: -68.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.0GB. [2023-01-27 19:03:22,788 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory was 213.5MB in the beginning and 213.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:03:22,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.85ms. Allocated memory is still 358.6MB. Free memory was 317.7MB in the beginning and 298.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:03:22,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.45ms. Allocated memory is still 358.6MB. Free memory was 298.8MB in the beginning and 297.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:03:22,790 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 358.6MB. Free memory was 297.1MB in the beginning and 295.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:03:22,790 INFO L158 Benchmark]: RCFGBuilder took 337.18ms. Allocated memory is still 358.6MB. Free memory was 295.6MB in the beginning and 283.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:03:22,791 INFO L158 Benchmark]: TraceAbstraction took 2842.11ms. Allocated memory was 358.6MB in the beginning and 432.0MB in the end (delta: 73.4MB). Free memory was 282.7MB in the beginning and 386.4MB in the end (delta: -103.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:03:22,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory was 213.5MB in the beginning and 213.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 479.85ms. Allocated memory is still 358.6MB. Free memory was 317.7MB in the beginning and 298.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.45ms. Allocated memory is still 358.6MB. Free memory was 298.8MB in the beginning and 297.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 358.6MB. Free memory was 297.1MB in the beginning and 295.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 337.18ms. Allocated memory is still 358.6MB. Free memory was 295.6MB in the beginning and 283.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2842.11ms. Allocated memory was 358.6MB in the beginning and 432.0MB in the end (delta: 73.4MB). Free memory was 282.7MB in the beginning and 386.4MB in the end (delta: -103.7MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 325, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 325, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 2 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: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 19:03:22,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...