/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 --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:09:31,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:09:31,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:09:31,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:09:31,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:09:31,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:09:31,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:09:31,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:09:31,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:09:31,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:09:31,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:09:31,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:09:31,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:09:31,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:09:31,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:09:31,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:09:31,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:09:31,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:09:31,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:09:31,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:09:31,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:09:31,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:09:31,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:09:31,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:09:31,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:09:31,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:09:31,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:09:31,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:09:31,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:09:31,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:09:31,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:09:31,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:09:31,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:09:31,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:09:31,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:09:31,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:09:31,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:09:31,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:09:31,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:09:31,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:09:31,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:09:31,304 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 [2022-12-06 17:09:31,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:09:31,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:09:31,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:09:31,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:09:31,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:09:31,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:09:31,338 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:09:31,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:09:31,338 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:09:31,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:09:31,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:09:31,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:09:31,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:09:31,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:09:31,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:09:31,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:09:31,341 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:09:31,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:09:31,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:09:31,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:09:31,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:09:31,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:09:31,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:09:31,612 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:09:31,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2022-12-06 17:09:32,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:09:32,709 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:09:32,710 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2022-12-06 17:09:32,735 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a11fc5dd/c74c5359571e4436a9aa7cc3e9b9b34e/FLAG0b75d209c [2022-12-06 17:09:32,747 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a11fc5dd/c74c5359571e4436a9aa7cc3e9b9b34e [2022-12-06 17:09:32,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:09:32,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:09:32,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:09:32,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:09:32,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:09:32,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:32,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa2c7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32, skipping insertion in model container [2022-12-06 17:09:32,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:32,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:09:32,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:09:32,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-06 17:09:32,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:09:32,947 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:09:32,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-06 17:09:32,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:09:32,992 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:09:32,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32 WrapperNode [2022-12-06 17:09:32,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:09:32,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:09:32,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:09:32,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:09:33,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,048 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 202 [2022-12-06 17:09:33,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:09:33,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:09:33,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:09:33,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:09:33,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:09:33,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:09:33,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:09:33,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:09:33,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (1/1) ... [2022-12-06 17:09:33,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:09:33,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:09:33,101 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) [2022-12-06 17:09:33,118 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 [2022-12-06 17:09:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:09:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:09:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:09:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:09:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:09:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:09:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:09:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:09:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:09:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:09:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:09:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:09:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:09:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:09:33,135 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:09:33,250 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:09:33,260 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:09:33,593 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:09:33,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:09:33,600 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:09:33,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:09:33 BoogieIcfgContainer [2022-12-06 17:09:33,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:09:33,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:09:33,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:09:33,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:09:33,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:09:32" (1/3) ... [2022-12-06 17:09:33,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62a2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:09:33, skipping insertion in model container [2022-12-06 17:09:33,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:09:32" (2/3) ... [2022-12-06 17:09:33,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62a2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:09:33, skipping insertion in model container [2022-12-06 17:09:33,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:09:33" (3/3) ... [2022-12-06 17:09:33,610 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-12-06 17:09:33,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:09:33,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:09:33,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:09:33,730 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 17:09:33,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 240 transitions, 504 flow [2022-12-06 17:09:33,877 INFO L130 PetriNetUnfolder]: 13/237 cut-off events. [2022-12-06 17:09:33,877 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:09:33,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 237 events. 13/237 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 335 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2022-12-06 17:09:33,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 240 transitions, 504 flow [2022-12-06 17:09:33,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 227 transitions, 472 flow [2022-12-06 17:09:33,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:09:33,904 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;@2462fcb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:09:33,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 17:09:33,959 INFO L130 PetriNetUnfolder]: 13/226 cut-off events. [2022-12-06 17:09:33,960 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:09:33,960 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:33,961 INFO L213 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, 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, 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] [2022-12-06 17:09:33,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:09:33,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash 423217104, now seen corresponding path program 1 times [2022-12-06 17:09:33,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:33,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880595283] [2022-12-06 17:09:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:37,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880595283] [2022-12-06 17:09:37,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880595283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:37,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:37,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-12-06 17:09:37,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308453116] [2022-12-06 17:09:37,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:37,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 17:09:37,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:37,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 17:09:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 17:09:37,433 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 240 [2022-12-06 17:09:37,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 227 transitions, 472 flow. Second operand has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:09:37,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:37,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 240 [2022-12-06 17:09:37,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:57,105 INFO L130 PetriNetUnfolder]: 37719/73852 cut-off events. [2022-12-06 17:09:57,105 INFO L131 PetriNetUnfolder]: For 5021/5021 co-relation queries the response was YES. [2022-12-06 17:09:57,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134907 conditions, 73852 events. 37719/73852 cut-off events. For 5021/5021 co-relation queries the response was YES. Maximal size of possible extension queue 1105. Compared 728797 event pairs, 704 based on Foata normal form. 8737/79211 useless extension candidates. Maximal degree in co-relation 134099. Up to 6165 conditions per place. [2022-12-06 17:09:57,596 INFO L137 encePairwiseOnDemand]: 169/240 looper letters, 1440 selfloop transitions, 37 changer transitions 67/1651 dead transitions. [2022-12-06 17:09:57,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1651 transitions, 6723 flow [2022-12-06 17:09:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-06 17:09:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-12-06 17:09:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 8793 transitions. [2022-12-06 17:09:57,627 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6209745762711865 [2022-12-06 17:09:57,632 INFO L294 CegarLoopForPetriNet]: 224 programPoint places, 58 predicate places. [2022-12-06 17:09:57,632 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 1651 transitions, 6723 flow [2022-12-06 17:09:57,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:09:57,636 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:57,636 INFO L213 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, 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, 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] [2022-12-06 17:09:57,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:09:57,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:09:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash 73713204, now seen corresponding path program 2 times [2022-12-06 17:09:57,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266868907] [2022-12-06 17:09:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:59,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:59,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266868907] [2022-12-06 17:09:59,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266868907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:59,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:59,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-12-06 17:09:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486103300] [2022-12-06 17:09:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:59,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 17:09:59,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:59,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 17:09:59,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 17:09:59,841 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 240 [2022-12-06 17:09:59,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1651 transitions, 6723 flow. Second operand has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:09:59,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:59,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 240 [2022-12-06 17:09:59,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:24,328 INFO L130 PetriNetUnfolder]: 71594/135986 cut-off events. [2022-12-06 17:10:24,328 INFO L131 PetriNetUnfolder]: For 17262/20296 co-relation queries the response was YES. [2022-12-06 17:10:24,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362773 conditions, 135986 events. 71594/135986 cut-off events. For 17262/20296 co-relation queries the response was YES. Maximal size of possible extension queue 1980. Compared 1386772 event pairs, 1475 based on Foata normal form. 55/131182 useless extension candidates. Maximal degree in co-relation 360360. Up to 26891 conditions per place. [2022-12-06 17:10:25,143 INFO L137 encePairwiseOnDemand]: 181/240 looper letters, 10359 selfloop transitions, 1810 changer transitions 111/12387 dead transitions. [2022-12-06 17:10:25,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 12387 transitions, 75283 flow [2022-12-06 17:10:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-12-06 17:10:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2022-12-06 17:10:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 12195 transitions. [2022-12-06 17:10:25,159 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5977941176470588 [2022-12-06 17:10:25,161 INFO L294 CegarLoopForPetriNet]: 224 programPoint places, 142 predicate places. [2022-12-06 17:10:25,161 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 12387 transitions, 75283 flow [2022-12-06 17:10:25,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:10:25,162 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:25,163 INFO L213 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, 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, 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] [2022-12-06 17:10:25,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:10:25,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:10:25,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:25,163 INFO L85 PathProgramCache]: Analyzing trace with hash -256879068, now seen corresponding path program 3 times [2022-12-06 17:10:25,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:25,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951821517] [2022-12-06 17:10:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:25,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:26,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:26,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951821517] [2022-12-06 17:10:26,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951821517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:26,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:26,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-12-06 17:10:26,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513296436] [2022-12-06 17:10:26,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:26,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 17:10:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:26,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 17:10:26,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 17:10:26,973 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 240 [2022-12-06 17:10:26,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 12387 transitions, 75283 flow. Second operand has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:10:26,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:26,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 240 [2022-12-06 17:10:26,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:22,422 INFO L130 PetriNetUnfolder]: 102660/194248 cut-off events. [2022-12-06 17:11:22,422 INFO L131 PetriNetUnfolder]: For 37635/46601 co-relation queries the response was YES. [2022-12-06 17:11:23,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678026 conditions, 194248 events. 102660/194248 cut-off events. For 37635/46601 co-relation queries the response was YES. Maximal size of possible extension queue 3277. Compared 2067261 event pairs, 500 based on Foata normal form. 496/188119 useless extension candidates. Maximal degree in co-relation 674974. Up to 61365 conditions per place. [2022-12-06 17:11:24,017 INFO L137 encePairwiseOnDemand]: 183/240 looper letters, 20237 selfloop transitions, 1474 changer transitions 144/21962 dead transitions. [2022-12-06 17:11:24,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 21962 transitions, 176923 flow [2022-12-06 17:11:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-12-06 17:11:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2022-12-06 17:11:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 8616 transitions. [2022-12-06 17:11:24,058 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5790322580645161 [2022-12-06 17:11:24,059 INFO L294 CegarLoopForPetriNet]: 224 programPoint places, 203 predicate places. [2022-12-06 17:11:24,059 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 21962 transitions, 176923 flow [2022-12-06 17:11:24,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:11:24,061 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:24,061 INFO L213 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, 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, 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] [2022-12-06 17:11:24,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:11:24,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:11:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash -393677728, now seen corresponding path program 4 times [2022-12-06 17:11:24,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:24,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731067078] [2022-12-06 17:11:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:26,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:26,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731067078] [2022-12-06 17:11:26,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731067078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:26,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:26,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-12-06 17:11:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381717853] [2022-12-06 17:11:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:26,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 17:11:26,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 17:11:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 17:11:26,779 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 240 [2022-12-06 17:11:26,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 21962 transitions, 176923 flow. Second operand has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:11:26,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:26,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 240 [2022-12-06 17:11:26,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:14:42,398 INFO L130 PetriNetUnfolder]: 141606/266218 cut-off events. [2022-12-06 17:14:42,399 INFO L131 PetriNetUnfolder]: For 81713/101152 co-relation queries the response was YES. [2022-12-06 17:14:43,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151610 conditions, 266218 events. 141606/266218 cut-off events. For 81713/101152 co-relation queries the response was YES. Maximal size of possible extension queue 4505. Compared 2919715 event pairs, 513 based on Foata normal form. 451/257739 useless extension candidates. Maximal degree in co-relation 1104257. Up to 87608 conditions per place. [2022-12-06 17:14:44,565 INFO L137 encePairwiseOnDemand]: 182/240 looper letters, 36524 selfloop transitions, 4260 changer transitions 161/41052 dead transitions. [2022-12-06 17:14:44,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 41052 transitions, 411611 flow [2022-12-06 17:14:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-06 17:14:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2022-12-06 17:14:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 9693 transitions. [2022-12-06 17:14:44,572 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5688380281690141 [2022-12-06 17:14:44,573 INFO L294 CegarLoopForPetriNet]: 224 programPoint places, 273 predicate places. [2022-12-06 17:14:44,573 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 41052 transitions, 411611 flow [2022-12-06 17:14:44,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:14:44,575 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:14:44,575 INFO L213 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, 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, 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] [2022-12-06 17:14:44,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:14:44,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:14:44,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:14:44,576 INFO L85 PathProgramCache]: Analyzing trace with hash 222941228, now seen corresponding path program 5 times [2022-12-06 17:14:44,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:14:44,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221279003] [2022-12-06 17:14:44,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:14:44,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:14:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:14:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:14:46,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:14:46,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221279003] [2022-12-06 17:14:46,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221279003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:14:46,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:14:46,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-12-06 17:14:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289670429] [2022-12-06 17:14:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:14:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-06 17:14:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:14:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-06 17:14:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-12-06 17:14:46,281 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 240 [2022-12-06 17:14:46,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 41052 transitions, 411611 flow. Second operand has 43 states, 43 states have (on average 121.46511627906976) internal successors, (5223), 43 states have internal predecessors, (5223), 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) [2022-12-06 17:14:46,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:14:46,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 240 [2022-12-06 17:14:46,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 17:21:59,746 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:22:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-12-06 17:22:00,285 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 17:22:00,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:22:00,285 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 119/240 universal loopers) in iteration 5,while PetriNetUnfolder was constructing finite prefix that currently has 908113 conditions, 171545 events (95474/171544 cut-off events. For 81386/111922 co-relation queries the response was YES. Maximal size of possible extension queue 5219. Compared 1848560 event pairs, 420 based on Foata normal form. 698/171454 useless extension candidates. Maximal degree in co-relation 903120. Up to 55638 conditions per place.). [2022-12-06 17:22:00,287 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 17:22:00,287 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 17:22:00,287 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 17:22:00,287 INFO L458 BasicCegarLoop]: Path program histogram: [5] [2022-12-06 17:22:00,289 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:22:00,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:22:00,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:22:00 BasicIcfg [2022-12-06 17:22:00,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:22:00,293 INFO L158 Benchmark]: Toolchain (without parser) took 747543.40ms. Allocated memory was 203.4MB in the beginning and 4.3GB in the end (delta: 4.0GB). Free memory was 179.2MB in the beginning and 546.5MB in the end (delta: -367.2MB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2022-12-06 17:22:00,293 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory was 181.6MB in the beginning and 181.5MB in the end (delta: 70.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:22:00,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.75ms. Allocated memory is still 203.4MB. Free memory was 179.2MB in the beginning and 167.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 17:22:00,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.55ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 165.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:22:00,294 INFO L158 Benchmark]: Boogie Preprocessor took 19.09ms. Allocated memory is still 203.4MB. Free memory was 165.1MB in the beginning and 163.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:22:00,294 INFO L158 Benchmark]: RCFGBuilder took 533.38ms. Allocated memory is still 203.4MB. Free memory was 163.5MB in the beginning and 143.1MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 17:22:00,295 INFO L158 Benchmark]: TraceAbstraction took 746689.30ms. Allocated memory was 203.4MB in the beginning and 4.3GB in the end (delta: 4.0GB). Free memory was 142.0MB in the beginning and 546.5MB in the end (delta: -404.5MB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2022-12-06 17:22:00,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory was 181.6MB in the beginning and 181.5MB in the end (delta: 70.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 240.75ms. Allocated memory is still 203.4MB. Free memory was 179.2MB in the beginning and 167.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.55ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 165.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.09ms. Allocated memory is still 203.4MB. Free memory was 165.1MB in the beginning and 163.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 533.38ms. Allocated memory is still 203.4MB. Free memory was 163.5MB in the beginning and 143.1MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 746689.30ms. Allocated memory was 203.4MB in the beginning and 4.3GB in the end (delta: 4.0GB). Free memory was 142.0MB in the beginning and 546.5MB in the end (delta: -404.5MB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 119/240 universal loopers) in iteration 5,while PetriNetUnfolder was constructing finite prefix that currently has 908113 conditions, 171545 events (95474/171544 cut-off events. For 81386/111922 co-relation queries the response was YES. Maximal size of possible extension queue 5219. Compared 1848560 event pairs, 420 based on Foata normal form. 698/171454 useless extension candidates. Maximal degree in co-relation 903120. Up to 55638 conditions per place.). - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 119/240 universal loopers) in iteration 5,while PetriNetUnfolder was constructing finite prefix that currently has 908113 conditions, 171545 events (95474/171544 cut-off events. For 81386/111922 co-relation queries the response was YES. Maximal size of possible extension queue 5219. Compared 1848560 event pairs, 420 based on Foata normal form. 698/171454 useless extension candidates. Maximal degree in co-relation 903120. Up to 55638 conditions per place.). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 119/240 universal loopers) in iteration 5,while PetriNetUnfolder was constructing finite prefix that currently has 908113 conditions, 171545 events (95474/171544 cut-off events. For 81386/111922 co-relation queries the response was YES. Maximal size of possible extension queue 5219. Compared 1848560 event pairs, 420 based on Foata normal form. 698/171454 useless extension candidates. Maximal degree in co-relation 903120. Up to 55638 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (43states, 119/240 universal loopers) in iteration 5,while PetriNetUnfolder was constructing finite prefix that currently has 908113 conditions, 171545 events (95474/171544 cut-off events. For 81386/111922 co-relation queries the response was YES. Maximal size of possible extension queue 5219. Compared 1848560 event pairs, 420 based on Foata normal form. 698/171454 useless extension candidates. Maximal degree in co-relation 903120. Up to 55638 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 363 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 746.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 734.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10388 SdHoareTripleChecker+Valid, 24.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10388 mSDsluCounter, 127051 SdHoareTripleChecker+Invalid, 20.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 122955 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59199 IncrementalHoareTripleChecker+Invalid, 59251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 4096 mSDtfsCounter, 59199 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 561 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 547 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9885 ImplicationChecksByTransitivity, 33.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411611occurred in iteration=4, InterpolantAutomatonStates: 277, 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, 0.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 1005 NumberOfCodeBlocks, 1005 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 11640 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 RESULT: Ultimate could not prove your program: Timeout [2022-12-06 17:22:00,319 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 Completed graceful shutdown