/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/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:19:32,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:19:32,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:19:32,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:19:32,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:19:32,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:19:32,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:19:32,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:19:32,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:19:32,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:19:32,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:19:32,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:19:32,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:19:32,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:19:32,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:19:32,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:19:32,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:19:32,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:19:32,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:19:32,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:19:32,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:19:32,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:19:32,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:19:32,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:19:32,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 22:19:32,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 22:19:32,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 22:19:32,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 22:19:32,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 22:19:32,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 22:19:32,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:19:32,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:19:32,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:19:32,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:19:32,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:19:32,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:19:32,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:19:32,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:19:32,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:19:32,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:19:32,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:19:32,276 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 22:19:32,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:19:32,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:19:32,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:19:32,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:19:32,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:19:32,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:19:32,306 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:19:32,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:19:32,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:19:32,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:19:32,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:19:32,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:19:32,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:19:32,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:19:32,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:19:32,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:19:32,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:19:32,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:19:32,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:19:32,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:19:32,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:19:32,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:19:32,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:19:32,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:19:32,540 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:19:32,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2022-09-20 22:19:32,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda6a94a1/9ad460a6fba542c0a276703b1f663811/FLAG42381c3f9 [2022-09-20 22:19:33,027 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:19:33,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-09-20 22:19:33,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda6a94a1/9ad460a6fba542c0a276703b1f663811/FLAG42381c3f9 [2022-09-20 22:19:33,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda6a94a1/9ad460a6fba542c0a276703b1f663811 [2022-09-20 22:19:33,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:19:33,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:19:33,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:19:33,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:19:33,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:19:33,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:33,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ba8261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33, skipping insertion in model container [2022-09-20 22:19:33,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:33,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:19:33,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:19:33,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-09-20 22:19:33,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:19:33,889 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:19:33,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-09-20 22:19:33,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:19:33,994 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:19:33,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33 WrapperNode [2022-09-20 22:19:33,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:19:33,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:19:33,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:19:33,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:19:34,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,063 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-09-20 22:19:34,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:19:34,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:19:34,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:19:34,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:19:34,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:19:34,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:19:34,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:19:34,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:19:34,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (1/1) ... [2022-09-20 22:19:34,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:19:34,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:19:34,137 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 22:19:34,160 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 22:19:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:19:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:19:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:19:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 22:19:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 22:19:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 22:19:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 22:19:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:19:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:19:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:19:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:19:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:19:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:19:34,181 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 22:19:34,280 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:19:34,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:19:34,461 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:19:34,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:19:34,467 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-20 22:19:34,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:19:34 BoogieIcfgContainer [2022-09-20 22:19:34,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:19:34,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:19:34,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:19:34,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:19:34,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:19:33" (1/3) ... [2022-09-20 22:19:34,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703aabcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:19:34, skipping insertion in model container [2022-09-20 22:19:34,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:33" (2/3) ... [2022-09-20 22:19:34,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703aabcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:19:34, skipping insertion in model container [2022-09-20 22:19:34,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:19:34" (3/3) ... [2022-09-20 22:19:34,490 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-09-20 22:19:34,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:19:34,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:19:34,514 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:19:34,576 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-20 22:19:34,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 230 flow [2022-09-20 22:19:34,672 INFO L130 PetriNetUnfolder]: 5/105 cut-off events. [2022-09-20 22:19:34,672 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:19:34,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 105 events. 5/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-09-20 22:19:34,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 230 flow [2022-09-20 22:19:34,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 94 transitions, 200 flow [2022-09-20 22:19:34,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:19:34,698 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;@24546fdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:19:34,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:19:34,722 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-09-20 22:19:34,722 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:19:34,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:19:34,723 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, 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 22:19:34,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:19:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:19:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1286905872, now seen corresponding path program 1 times [2022-09-20 22:19:34,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:19:34,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012568752] [2022-09-20 22:19:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:19:34,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:19:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:19:35,058 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 22:19:35,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:19:35,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012568752] [2022-09-20 22:19:35,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012568752] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:19:35,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:19:35,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:19:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170830177] [2022-09-20 22:19:35,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:19:35,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:19:35,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:19:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:19:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:19:35,096 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 107 [2022-09-20 22:19:35,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 22:19:35,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:19:35,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 107 [2022-09-20 22:19:35,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:19:35,189 INFO L130 PetriNetUnfolder]: 10/111 cut-off events. [2022-09-20 22:19:35,189 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-09-20 22:19:35,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 111 events. 10/111 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 107 event pairs, 3 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 81. Up to 15 conditions per place. [2022-09-20 22:19:35,191 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 13 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2022-09-20 22:19:35,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 220 flow [2022-09-20 22:19:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:19:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:19:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2022-09-20 22:19:35,202 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753894080996885 [2022-09-20 22:19:35,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2022-09-20 22:19:35,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2022-09-20 22:19:35,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:19:35,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2022-09-20 22:19:35,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 22:19:35,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 22:19:35,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 22:19:35,220 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 200 flow. Second operand 3 states and 281 transitions. [2022-09-20 22:19:35,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 220 flow [2022-09-20 22:19:35,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 89 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:19:35,229 INFO L231 Difference]: Finished difference. Result has 93 places, 88 transitions, 188 flow [2022-09-20 22:19:35,231 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=93, PETRI_TRANSITIONS=88} [2022-09-20 22:19:35,234 INFO L287 CegarLoopForPetriNet]: 97 programPoint places, -4 predicate places. [2022-09-20 22:19:35,234 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 88 transitions, 188 flow [2022-09-20 22:19:35,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 22:19:35,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:19:35,235 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, 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 22:19:35,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:19:35,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:19:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:19:35,236 INFO L85 PathProgramCache]: Analyzing trace with hash 883040944, now seen corresponding path program 2 times [2022-09-20 22:19:35,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:19:35,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060218382] [2022-09-20 22:19:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:19:35,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:19:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:19:35,474 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 22:19:35,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:19:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060218382] [2022-09-20 22:19:35,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060218382] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:19:35,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:19:35,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:19:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474181622] [2022-09-20 22:19:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:19:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:19:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:19:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:19:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:19:35,482 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2022-09-20 22:19:35,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 22:19:35,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:19:35,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2022-09-20 22:19:35,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:19:35,642 INFO L130 PetriNetUnfolder]: 14/126 cut-off events. [2022-09-20 22:19:35,642 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-09-20 22:19:35,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 126 events. 14/126 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 157 event pairs, 2 based on Foata normal form. 7/132 useless extension candidates. Maximal degree in co-relation 91. Up to 16 conditions per place. [2022-09-20 22:19:35,649 INFO L137 encePairwiseOnDemand]: 97/107 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2022-09-20 22:19:35,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 253 flow [2022-09-20 22:19:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 22:19:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 22:19:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 877 transitions. [2022-09-20 22:19:35,661 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.819626168224299 [2022-09-20 22:19:35,661 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 877 transitions. [2022-09-20 22:19:35,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 877 transitions. [2022-09-20 22:19:35,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:19:35,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 877 transitions. [2022-09-20 22:19:35,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.7) internal successors, (877), 10 states have internal predecessors, (877), 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 22:19:35,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 22:19:35,670 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 22:19:35,670 INFO L175 Difference]: Start difference. First operand has 93 places, 88 transitions, 188 flow. Second operand 10 states and 877 transitions. [2022-09-20 22:19:35,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 253 flow [2022-09-20 22:19:35,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:19:35,672 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-09-20 22:19:35,672 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-09-20 22:19:35,673 INFO L287 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2022-09-20 22:19:35,673 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-09-20 22:19:35,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 22:19:35,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:19:35,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:19:35,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-09-20 22:19:35,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:19:35,677 INFO L444 BasicCegarLoop]: Path program histogram: [2] [2022-09-20 22:19:35,684 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:19:35,684 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:19:35,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:19:35 BasicIcfg [2022-09-20 22:19:35,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:19:35,694 INFO L158 Benchmark]: Toolchain (without parser) took 2327.92ms. Allocated memory is still 223.3MB. Free memory was 195.6MB in the beginning and 142.4MB in the end (delta: 53.1MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,695 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:19:35,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.26ms. Allocated memory is still 223.3MB. Free memory was 195.6MB in the beginning and 175.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.44ms. Allocated memory is still 223.3MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,696 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 223.3MB. Free memory was 173.0MB in the beginning and 171.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,698 INFO L158 Benchmark]: RCFGBuilder took 387.09ms. Allocated memory is still 223.3MB. Free memory was 171.5MB in the beginning and 157.3MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,699 INFO L158 Benchmark]: TraceAbstraction took 1208.88ms. Allocated memory is still 223.3MB. Free memory was 156.8MB in the beginning and 142.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2022-09-20 22:19:35,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 628.26ms. Allocated memory is still 223.3MB. Free memory was 195.6MB in the beginning and 175.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.44ms. Allocated memory is still 223.3MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 223.3MB. Free memory was 173.0MB in the beginning and 171.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 387.09ms. Allocated memory is still 223.3MB. Free memory was 171.5MB in the beginning and 157.3MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1208.88ms. Allocated memory is still 223.3MB. Free memory was 156.8MB in the beginning and 142.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: 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 5 procedures, 133 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 13 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 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! [2022-09-20 22:19:35,748 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...