/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:37:59,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:37:59,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:37:59,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:37:59,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:37:59,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:37:59,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:37:59,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:37:59,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:37:59,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:37:59,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:37:59,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:37:59,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:37:59,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:37:59,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:37:59,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:37:59,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:37:59,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:37:59,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:37:59,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:37:59,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:37:59,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:37:59,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:37:59,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:37:59,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 22:37:59,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 22:37:59,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 22:37:59,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 22:37:59,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 22:37:59,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 22:37:59,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:37:59,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:37:59,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:37:59,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:37:59,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:37:59,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:37:59,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:37:59,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:37:59,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:37:59,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:37:59,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:37:59,108 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-NoLbe.epf [2022-09-20 22:37:59,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:37:59,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:37:59,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:37:59,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:37:59,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:37:59,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:37:59,136 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:37:59,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:37:59,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:37:59,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:37:59,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:37:59,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:37:59,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:37:59,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:37:59,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:37:59,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:37:59,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:37:59,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:37:59,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:37:59,391 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:37:59,393 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:37:59,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-09-20 22:37:59,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a593dd5f/467533d45a7242869076f0ccec7656dd/FLAG0d3e963b4 [2022-09-20 22:37:59,794 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:37:59,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-09-20 22:37:59,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a593dd5f/467533d45a7242869076f0ccec7656dd/FLAG0d3e963b4 [2022-09-20 22:38:00,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a593dd5f/467533d45a7242869076f0ccec7656dd [2022-09-20 22:38:00,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:38:00,184 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:38:00,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:00,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:38:00,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:38:00,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fd87b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00, skipping insertion in model container [2022-09-20 22:38:00,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:38:00,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:38:00,398 WARN L230 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_40-traces-ex-6_true.i[1088,1101] [2022-09-20 22:38:00,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:00,515 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:38:00,525 WARN L230 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_40-traces-ex-6_true.i[1088,1101] [2022-09-20 22:38:00,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:00,563 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:38:00,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00 WrapperNode [2022-09-20 22:38:00,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:00,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:00,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:38:00,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:38:00,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,612 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-09-20 22:38:00,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:00,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:38:00,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:38:00,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:38:00,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:38:00,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:38:00,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:38:00,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:38:00,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (1/1) ... [2022-09-20 22:38:00,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:00,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:38:00,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-20 22:38:00,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-20 22:38:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:38:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:38:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:38:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:38:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 22:38:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 22:38:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:38:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:38:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:38:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:38:00,767 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:38:00,830 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:38:00,831 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:38:00,924 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:38:00,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:38:00,930 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:38:00,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:00 BoogieIcfgContainer [2022-09-20 22:38:00,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:38:00,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:38:00,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:38:00,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:38:00,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:38:00" (1/3) ... [2022-09-20 22:38:00,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d3a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:00, skipping insertion in model container [2022-09-20 22:38:00,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:00" (2/3) ... [2022-09-20 22:38:00,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d3a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:00, skipping insertion in model container [2022-09-20 22:38:00,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:00" (3/3) ... [2022-09-20 22:38:00,938 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-09-20 22:38:00,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:38:00,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:38:00,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:38:00,996 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:38:01,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 67 transitions, 139 flow [2022-09-20 22:38:01,077 INFO L130 PetriNetUnfolder]: 1/66 cut-off events. [2022-09-20 22:38:01,077 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:01,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2022-09-20 22:38:01,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 67 transitions, 139 flow [2022-09-20 22:38:01,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-09-20 22:38:01,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:38:01,094 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;@319fe2a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:38:01,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-09-20 22:38:01,106 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-09-20 22:38:01,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:01,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:01,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:01,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:38:01,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 412301319, now seen corresponding path program 1 times [2022-09-20 22:38:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518582460] [2022-09-20 22:38:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:01,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:38:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:38:01,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:38:01,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518582460] [2022-09-20 22:38:01,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518582460] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:38:01,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:38:01,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:38:01,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269163220] [2022-09-20 22:38:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:38:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:38:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:38:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:38:01,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:38:01,375 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 67 [2022-09-20 22:38:01,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:38:01,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 67 [2022-09-20 22:38:01,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:38:01,496 INFO L130 PetriNetUnfolder]: 8/91 cut-off events. [2022-09-20 22:38:01,496 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:38:01,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 91 events. 8/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 0 based on Foata normal form. 3/94 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2022-09-20 22:38:01,498 INFO L137 encePairwiseOnDemand]: 61/67 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2022-09-20 22:38:01,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2022-09-20 22:38:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:38:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:38:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 414 transitions. [2022-09-20 22:38:01,512 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827292110874201 [2022-09-20 22:38:01,512 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 414 transitions. [2022-09-20 22:38:01,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 414 transitions. [2022-09-20 22:38:01,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:38:01,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 414 transitions. [2022-09-20 22:38:01,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.142857142857146) internal successors, (414), 7 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,531 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,533 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 414 transitions. [2022-09-20 22:38:01,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2022-09-20 22:38:01,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-20 22:38:01,539 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2022-09-20 22:38:01,540 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2022-09-20 22:38:01,543 INFO L287 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2022-09-20 22:38:01,543 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2022-09-20 22:38:01,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:01,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:38:01,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:38:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2088866876, now seen corresponding path program 1 times [2022-09-20 22:38:01,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100293321] [2022-09-20 22:38:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:38:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:38:01,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:38:01,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100293321] [2022-09-20 22:38:01,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100293321] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:38:01,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:38:01,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:38:01,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074377930] [2022-09-20 22:38:01,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:38:01,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:38:01,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:38:01,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:38:01,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:38:01,709 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 67 [2022-09-20 22:38:01,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:38:01,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 67 [2022-09-20 22:38:01,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:38:01,772 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2022-09-20 22:38:01,772 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-20 22:38:01,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 75 events. 1/75 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 1 based on Foata normal form. 5/80 useless extension candidates. Maximal degree in co-relation 114. Up to 12 conditions per place. [2022-09-20 22:38:01,773 INFO L137 encePairwiseOnDemand]: 61/67 looper letters, 14 selfloop transitions, 6 changer transitions 0/56 dead transitions. [2022-09-20 22:38:01,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 56 transitions, 173 flow [2022-09-20 22:38:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:38:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:38:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2022-09-20 22:38:01,775 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7373134328358208 [2022-09-20 22:38:01,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:38:01,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,777 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,777 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 5 states and 247 transitions. [2022-09-20 22:38:01,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 56 transitions, 173 flow [2022-09-20 22:38:01,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 159 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-09-20 22:38:01,779 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 131 flow [2022-09-20 22:38:01,779 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2022-09-20 22:38:01,780 INFO L287 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2022-09-20 22:38:01,780 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 131 flow [2022-09-20 22:38:01,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:01,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:01,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:38:01,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:38:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:01,782 INFO L85 PathProgramCache]: Analyzing trace with hash 35787268, now seen corresponding path program 2 times [2022-09-20 22:38:01,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:01,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953087494] [2022-09-20 22:38:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:01,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:38:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:38:01,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:38:01,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953087494] [2022-09-20 22:38:01,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953087494] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:38:01,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:38:01,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:38:01,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117826698] [2022-09-20 22:38:01,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:38:01,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:38:01,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:38:01,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:38:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:38:01,878 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 67 [2022-09-20 22:38:01,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:38:01,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 67 [2022-09-20 22:38:01,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:38:01,932 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-09-20 22:38:01,932 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-20 22:38:01,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 59 events. 0/59 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-09-20 22:38:01,932 INFO L137 encePairwiseOnDemand]: 62/67 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2022-09-20 22:38:01,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 165 flow [2022-09-20 22:38:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:38:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:38:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2022-09-20 22:38:01,934 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7373134328358208 [2022-09-20 22:38:01,934 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:38:01,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 247 transitions. [2022-09-20 22:38:01,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,936 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,936 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 131 flow. Second operand 5 states and 247 transitions. [2022-09-20 22:38:01,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 165 flow [2022-09-20 22:38:01,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 154 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:38:01,937 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2022-09-20 22:38:01,938 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2022-09-20 22:38:01,938 INFO L287 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2022-09-20 22:38:01,938 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2022-09-20 22:38:01,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:38:01,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-09-20 22:38:01,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-09-20 22:38:01,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:38:01,941 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-09-20 22:38:01,944 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:38:01,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:38:01,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:38:01 BasicIcfg [2022-09-20 22:38:01,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:38:01,948 INFO L158 Benchmark]: Toolchain (without parser) took 1764.31ms. Allocated memory was 234.9MB in the beginning and 321.9MB in the end (delta: 87.0MB). Free memory was 200.0MB in the beginning and 245.2MB in the end (delta: -45.2MB). Peak memory consumption was 41.4MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,949 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 234.9MB. Free memory is still 191.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:38:01,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.25ms. Allocated memory is still 234.9MB. Free memory was 199.8MB in the beginning and 197.2MB in the end (delta: 2.7MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.40ms. Allocated memory is still 234.9MB. Free memory was 197.2MB in the beginning and 195.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,950 INFO L158 Benchmark]: Boogie Preprocessor took 26.96ms. Allocated memory is still 234.9MB. Free memory was 195.3MB in the beginning and 194.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,950 INFO L158 Benchmark]: RCFGBuilder took 291.64ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 182.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,950 INFO L158 Benchmark]: TraceAbstraction took 1014.61ms. Allocated memory was 234.9MB in the beginning and 321.9MB in the end (delta: 87.0MB). Free memory was 182.0MB in the beginning and 245.2MB in the end (delta: -63.2MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2022-09-20 22:38:01,952 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 234.9MB. Free memory is still 191.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 379.25ms. Allocated memory is still 234.9MB. Free memory was 199.8MB in the beginning and 197.2MB in the end (delta: 2.7MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.40ms. Allocated memory is still 234.9MB. Free memory was 197.2MB in the beginning and 195.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.96ms. Allocated memory is still 234.9MB. Free memory was 195.3MB in the beginning and 194.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.64ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 182.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1014.61ms. Allocated memory was 234.9MB in the beginning and 321.9MB in the end (delta: 87.0MB). Free memory was 182.0MB in the beginning and 245.2MB in the end (delta: -63.2MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 80 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 14 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=1, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-09-20 22:38:01,977 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...