/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:42:01,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:42:01,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:42:01,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:42:01,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:42:01,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:42:01,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:42:01,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:42:01,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:42:01,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:42:01,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:42:01,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:42:01,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:42:01,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:42:01,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:42:01,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:42:01,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:42:01,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:42:01,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:42:01,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:42:01,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:42:01,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:42:01,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:42:01,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:42:01,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:42:01,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:42:01,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:42:01,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:42:01,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:42:01,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:42:01,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:42:01,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:42:01,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:42:01,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:42:01,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:42:01,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:42:01,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:42:01,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:42:01,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:42:01,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:42:01,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:42:01,296 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-SemanticLbe.epf [2022-12-12 21:42:01,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:42:01,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:42:01,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:42:01,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:42:01,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:42:01,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:42:01,314 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:42:01,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:42:01,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:42:01,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:42:01,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:42:01,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:42:01,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:42:01,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:42:01,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:01,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:42:01,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:42:01,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:42:01,318 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:42:01,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:42:01,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:42:01,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:42:01,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:42:01,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:42:01,588 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:42:01,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-12-12 21:42:02,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:42:02,830 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:42:02,830 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-12-12 21:42:02,846 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f054f101/6bbd8b1890254b9b97c24b9b276e0b59/FLAGfba12c205 [2022-12-12 21:42:02,856 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f054f101/6bbd8b1890254b9b97c24b9b276e0b59 [2022-12-12 21:42:02,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:42:02,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:42:02,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:02,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:42:02,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:42:02,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:02" (1/1) ... [2022-12-12 21:42:02,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a753c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:02, skipping insertion in model container [2022-12-12 21:42:02,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:02" (1/1) ... [2022-12-12 21:42:02,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:42:02,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:42:03,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2022-12-12 21:42:03,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:03,163 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:42:03,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2022-12-12 21:42:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:03,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:03,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:03,236 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:42:03,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03 WrapperNode [2022-12-12 21:42:03,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:03,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:03,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:42:03,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:42:03,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,284 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-12 21:42:03,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:03,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:42:03,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:42:03,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:42:03,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:42:03,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:42:03,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:42:03,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:42:03,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (1/1) ... [2022-12-12 21:42:03,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:03,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:42:03,341 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) [2022-12-12 21:42:03,348 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 [2022-12-12 21:42:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:42:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:42:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:42:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:42:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:42:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:42:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:42:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:42:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:42:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:42:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:42:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:42:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:42:03,378 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:42:03,506 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:42:03,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:42:03,621 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:42:03,625 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:42:03,626 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:42:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:03 BoogieIcfgContainer [2022-12-12 21:42:03,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:42:03,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:42:03,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:42:03,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:42:03,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:42:02" (1/3) ... [2022-12-12 21:42:03,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a575bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:03, skipping insertion in model container [2022-12-12 21:42:03,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:03" (2/3) ... [2022-12-12 21:42:03,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a575bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:03, skipping insertion in model container [2022-12-12 21:42:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:03" (3/3) ... [2022-12-12 21:42:03,633 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-12-12 21:42:03,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:42:03,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 21:42:03,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:42:03,676 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:42:03,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 144 flow [2022-12-12 21:42:03,726 INFO L130 PetriNetUnfolder]: 2/65 cut-off events. [2022-12-12 21:42:03,726 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:03,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-12 21:42:03,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 67 transitions, 144 flow [2022-12-12 21:42:03,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 55 transitions, 116 flow [2022-12-12 21:42:03,743 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:42:03,759 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-12 21:42:03,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 116 flow [2022-12-12 21:42:03,776 INFO L130 PetriNetUnfolder]: 1/55 cut-off events. [2022-12-12 21:42:03,776 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:03,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-12 21:42:03,777 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-12 21:42:03,778 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-12 21:42:05,518 INFO L241 LiptonReduction]: Total number of compositions: 43 [2022-12-12 21:42:05,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:42:05,548 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;@6d580f69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:42:05,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 21:42:05,557 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-12 21:42:05,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:05,558 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:05,558 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 21:42:05,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:42:05,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:05,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1769902315, now seen corresponding path program 1 times [2022-12-12 21:42:05,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:05,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845475992] [2022-12-12 21:42:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:05,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:05,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845475992] [2022-12-12 21:42:05,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845475992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:05,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:05,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:42:05,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801387426] [2022-12-12 21:42:05,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:05,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:42:05,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:42:05,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:42:05,959 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 19 [2022-12-12 21:42:05,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:42:05,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:05,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 19 [2022-12-12 21:42:05,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:06,016 INFO L130 PetriNetUnfolder]: 56/134 cut-off events. [2022-12-12 21:42:06,016 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 21:42:06,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 134 events. 56/134 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 589 event pairs, 17 based on Foata normal form. 4/112 useless extension candidates. Maximal degree in co-relation 247. Up to 84 conditions per place. [2022-12-12 21:42:06,018 INFO L137 encePairwiseOnDemand]: 15/19 looper letters, 14 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-12 21:42:06,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 82 flow [2022-12-12 21:42:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:42:06,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:42:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-12-12 21:42:06,029 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-12-12 21:42:06,033 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-12 21:42:06,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 22 transitions, 82 flow [2022-12-12 21:42:06,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 82 flow [2022-12-12 21:42:06,036 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 82 flow [2022-12-12 21:42:06,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:42:06,036 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:06,036 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:06,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:42:06,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:42:06,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash 967602283, now seen corresponding path program 1 times [2022-12-12 21:42:06,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:06,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626104171] [2022-12-12 21:42:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:06,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:06,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:06,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626104171] [2022-12-12 21:42:06,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626104171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:06,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:06,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:06,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403992094] [2022-12-12 21:42:06,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:06,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:06,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:06,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:06,177 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 21:42:06,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-12 21:42:06,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:06,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 21:42:06,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:06,279 INFO L130 PetriNetUnfolder]: 125/277 cut-off events. [2022-12-12 21:42:06,279 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-12 21:42:06,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 277 events. 125/277 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1284 event pairs, 0 based on Foata normal form. 20/244 useless extension candidates. Maximal degree in co-relation 724. Up to 169 conditions per place. [2022-12-12 21:42:06,282 INFO L137 encePairwiseOnDemand]: 13/19 looper letters, 32 selfloop transitions, 7 changer transitions 3/46 dead transitions. [2022-12-12 21:42:06,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 46 transitions, 260 flow [2022-12-12 21:42:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:42:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:42:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2022-12-12 21:42:06,285 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6105263157894737 [2022-12-12 21:42:06,285 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-12 21:42:06,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 46 transitions, 260 flow [2022-12-12 21:42:06,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 43 transitions, 244 flow [2022-12-12 21:42:06,288 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 43 transitions, 244 flow [2022-12-12 21:42:06,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-12 21:42:06,289 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:06,289 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:06,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:42:06,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:42:06,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash -69099859, now seen corresponding path program 1 times [2022-12-12 21:42:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:06,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495234091] [2022-12-12 21:42:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:06,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:06,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495234091] [2022-12-12 21:42:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495234091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:06,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:42:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992433930] [2022-12-12 21:42:06,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:42:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:42:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:42:06,377 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 21:42:06,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 43 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-12 21:42:06,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:06,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 21:42:06,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:06,434 INFO L130 PetriNetUnfolder]: 96/250 cut-off events. [2022-12-12 21:42:06,435 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-12 21:42:06,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 250 events. 96/250 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1313 event pairs, 0 based on Foata normal form. 16/209 useless extension candidates. Maximal degree in co-relation 866. Up to 152 conditions per place. [2022-12-12 21:42:06,438 INFO L137 encePairwiseOnDemand]: 14/19 looper letters, 21 selfloop transitions, 4 changer transitions 22/50 dead transitions. [2022-12-12 21:42:06,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 50 transitions, 376 flow [2022-12-12 21:42:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:42:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:42:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-12 21:42:06,440 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5368421052631579 [2022-12-12 21:42:06,441 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2022-12-12 21:42:06,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 50 transitions, 376 flow [2022-12-12 21:42:06,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 28 transitions, 214 flow [2022-12-12 21:42:06,442 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 214 flow [2022-12-12 21:42:06,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-12 21:42:06,442 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:06,442 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:06,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:42:06,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:42:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2140958605, now seen corresponding path program 1 times [2022-12-12 21:42:06,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:06,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936360607] [2022-12-12 21:42:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:06,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936360607] [2022-12-12 21:42:06,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936360607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:06,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:06,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:06,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524824156] [2022-12-12 21:42:06,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:06,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:06,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:06,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:06,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:06,561 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 21:42:06,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:42:06,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:06,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 21:42:06,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:06,610 INFO L130 PetriNetUnfolder]: 44/141 cut-off events. [2022-12-12 21:42:06,612 INFO L131 PetriNetUnfolder]: For 105/107 co-relation queries the response was YES. [2022-12-12 21:42:06,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 141 events. 44/141 cut-off events. For 105/107 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 657 event pairs, 0 based on Foata normal form. 6/119 useless extension candidates. Maximal degree in co-relation 593. Up to 75 conditions per place. [2022-12-12 21:42:06,614 INFO L137 encePairwiseOnDemand]: 10/19 looper letters, 18 selfloop transitions, 6 changer transitions 32/58 dead transitions. [2022-12-12 21:42:06,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 58 transitions, 531 flow [2022-12-12 21:42:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:42:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:42:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2022-12-12 21:42:06,619 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6421052631578947 [2022-12-12 21:42:06,620 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 13 predicate places. [2022-12-12 21:42:06,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 58 transitions, 531 flow [2022-12-12 21:42:06,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 26 transitions, 255 flow [2022-12-12 21:42:06,621 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 255 flow [2022-12-12 21:42:06,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:42:06,622 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:06,622 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:06,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:42:06,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:42:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2110714418, now seen corresponding path program 1 times [2022-12-12 21:42:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:06,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30662690] [2022-12-12 21:42:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:06,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:06,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30662690] [2022-12-12 21:42:06,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30662690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:06,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:06,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:42:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427739323] [2022-12-12 21:42:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:06,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:42:06,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:06,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:42:06,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:42:06,739 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2022-12-12 21:42:06,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 255 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-12 21:42:06,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:06,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2022-12-12 21:42:06,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:06,778 INFO L130 PetriNetUnfolder]: 16/69 cut-off events. [2022-12-12 21:42:06,778 INFO L131 PetriNetUnfolder]: For 95/97 co-relation queries the response was YES. [2022-12-12 21:42:06,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 69 events. 16/69 cut-off events. For 95/97 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 254 event pairs, 0 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 357. Up to 49 conditions per place. [2022-12-12 21:42:06,779 INFO L137 encePairwiseOnDemand]: 10/19 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2022-12-12 21:42:06,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 333 flow [2022-12-12 21:42:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:42:06,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:42:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 45 transitions. [2022-12-12 21:42:06,781 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39473684210526316 [2022-12-12 21:42:06,782 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 14 predicate places. [2022-12-12 21:42:06,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 29 transitions, 333 flow [2022-12-12 21:42:06,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:42:06,783 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:42:06,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-12 21:42:06,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 21:42:06,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 21:42:06,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 21:42:06,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:42:06,785 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-12 21:42:06,787 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:42:06,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:42:06,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:42:06 BasicIcfg [2022-12-12 21:42:06,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:42:06,794 INFO L158 Benchmark]: Toolchain (without parser) took 3935.57ms. Allocated memory was 213.9MB in the beginning and 262.1MB in the end (delta: 48.2MB). Free memory was 171.1MB in the beginning and 231.1MB in the end (delta: -60.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:42:06,794 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory was 190.6MB in the beginning and 190.5MB in the end (delta: 87.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:42:06,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.60ms. Allocated memory is still 213.9MB. Free memory was 170.6MB in the beginning and 148.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-12 21:42:06,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 213.9MB. Free memory was 148.5MB in the beginning and 146.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:42:06,798 INFO L158 Benchmark]: Boogie Preprocessor took 21.48ms. Allocated memory is still 213.9MB. Free memory was 146.8MB in the beginning and 145.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 21:42:06,798 INFO L158 Benchmark]: RCFGBuilder took 319.99ms. Allocated memory is still 213.9MB. Free memory was 145.4MB in the beginning and 132.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 21:42:06,798 INFO L158 Benchmark]: TraceAbstraction took 3164.76ms. Allocated memory was 213.9MB in the beginning and 262.1MB in the end (delta: 48.2MB). Free memory was 131.2MB in the beginning and 231.1MB in the end (delta: -99.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:42:06,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory was 190.6MB in the beginning and 190.5MB in the end (delta: 87.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.60ms. Allocated memory is still 213.9MB. Free memory was 170.6MB in the beginning and 148.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 213.9MB. Free memory was 148.5MB in the beginning and 146.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.48ms. Allocated memory is still 213.9MB. Free memory was 146.8MB in the beginning and 145.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 319.99ms. Allocated memory is still 213.9MB. Free memory was 145.4MB in the beginning and 132.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3164.76ms. Allocated memory was 213.9MB in the beginning and 262.1MB in the end (delta: 48.2MB). Free memory was 131.2MB in the beginning and 231.1MB in the end (delta: -99.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 61 PlacesBefore, 25 PlacesAfterwards, 55 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 649, independent: 605, independent conditional: 605, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 649, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 649, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 649, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 473, independent: 445, independent conditional: 0, independent unconditional: 445, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 473, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 649, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 473, unknown conditional: 0, unknown unconditional: 473] , Statistics on independence cache: Total cache size (in pairs): 694, Positive cache size: 666, Positive conditional cache size: 0, Positive unconditional cache size: 666, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: 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, 82 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: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 5 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 787 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-12 21:42:06,816 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...