/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 23:01:17,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 23:01:17,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 23:01:17,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 23:01:17,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 23:01:17,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 23:01:17,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 23:01:17,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 23:01:17,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 23:01:17,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 23:01:17,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 23:01:17,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 23:01:17,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 23:01:17,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 23:01:17,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 23:01:17,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 23:01:17,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 23:01:17,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 23:01:17,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 23:01:17,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 23:01:17,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 23:01:17,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 23:01:17,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 23:01:17,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 23:01:17,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 23:01:17,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 23:01:17,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 23:01:17,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 23:01:17,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 23:01:17,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 23:01:17,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 23:01:17,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 23:01:17,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 23:01:17,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 23:01:17,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 23:01:17,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 23:01:17,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 23:01:17,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 23:01:17,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 23:01:17,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 23:01:17,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 23:01:17,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 23:01:17,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 23:01:17,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 23:01:17,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 23:01:17,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 23:01:17,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 23:01:17,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 23:01:17,290 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 23:01:17,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 23:01:17,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 23:01:17,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 23:01:17,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 23:01:17,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 23:01:17,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 23:01:17,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 23:01:17,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 23:01:17,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 23:01:17,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 23:01:17,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 23:01:17,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 23:01:17,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 23:01:17,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 23:01:17,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 23:01:17,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 23:01:17,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 23:01:17,557 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 23:01:17,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-09-20 23:01:17,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7fcb6e2/64a2353163b74625b0ccd2fb2d652d9d/FLAG6ae75f129 [2022-09-20 23:01:18,042 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 23:01:18,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2022-09-20 23:01:18,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7fcb6e2/64a2353163b74625b0ccd2fb2d652d9d/FLAG6ae75f129 [2022-09-20 23:01:18,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7fcb6e2/64a2353163b74625b0ccd2fb2d652d9d [2022-09-20 23:01:18,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 23:01:18,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 23:01:18,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 23:01:18,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 23:01:18,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 23:01:18,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40faafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18, skipping insertion in model container [2022-09-20 23:01:18,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 23:01:18,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 23:01:18,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-09-20 23:01:18,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 23:01:18,365 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 23:01:18,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-09-20 23:01:18,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 23:01:18,411 INFO L208 MainTranslator]: Completed translation [2022-09-20 23:01:18,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18 WrapperNode [2022-09-20 23:01:18,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 23:01:18,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 23:01:18,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 23:01:18,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 23:01:18,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,448 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-09-20 23:01:18,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 23:01:18,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 23:01:18,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 23:01:18,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 23:01:18,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 23:01:18,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 23:01:18,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 23:01:18,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 23:01:18,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (1/1) ... [2022-09-20 23:01:18,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 23:01:18,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 23:01:18,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-20 23:01:18,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-20 23:01:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 23:01:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 23:01:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 23:01:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 23:01:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-20 23:01:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 23:01:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 23:01:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 23:01:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 23:01:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 23:01:18,558 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 23:01:18,654 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 23:01:18,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 23:01:18,869 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 23:01:18,888 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 23:01:18,888 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 23:01:18,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:01:18 BoogieIcfgContainer [2022-09-20 23:01:18,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 23:01:18,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 23:01:18,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 23:01:18,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 23:01:18,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 11:01:18" (1/3) ... [2022-09-20 23:01:18,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 11:01:18, skipping insertion in model container [2022-09-20 23:01:18,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 11:01:18" (2/3) ... [2022-09-20 23:01:18,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 11:01:18, skipping insertion in model container [2022-09-20 23:01:18,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 11:01:18" (3/3) ... [2022-09-20 23:01:18,903 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-09-20 23:01:18,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 23:01:18,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 23:01:18,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 23:01:18,994 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-20 23:01:19,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 212 flow [2022-09-20 23:01:19,097 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-09-20 23:01:19,097 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 23:01:19,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 2/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 25 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-09-20 23:01:19,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 212 flow [2022-09-20 23:01:19,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 80 transitions, 178 flow [2022-09-20 23:01:19,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 23:01:19,126 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;@6cb0ee82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 23:01:19,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-20 23:01:19,165 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-09-20 23:01:19,166 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 23:01:19,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:19,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:19,167 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)] === [2022-09-20 23:01:19,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:19,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1429746680, now seen corresponding path program 1 times [2022-09-20 23:01:19,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:19,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595632041] [2022-09-20 23:01:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:19,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:19,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:19,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595632041] [2022-09-20 23:01:19,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595632041] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:19,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:19,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 23:01:19,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144383661] [2022-09-20 23:01:19,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:19,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 23:01:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 23:01:19,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 23:01:19,874 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:19,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 178 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:19,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:19,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:19,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:20,479 INFO L130 PetriNetUnfolder]: 58/250 cut-off events. [2022-09-20 23:01:20,479 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-09-20 23:01:20,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 250 events. 58/250 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 896 event pairs, 1 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 188. Up to 63 conditions per place. [2022-09-20 23:01:20,486 INFO L137 encePairwiseOnDemand]: 78/94 looper letters, 31 selfloop transitions, 15 changer transitions 22/118 dead transitions. [2022-09-20 23:01:20,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 118 transitions, 441 flow [2022-09-20 23:01:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 23:01:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 23:01:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1017 transitions. [2022-09-20 23:01:20,509 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7212765957446808 [2022-09-20 23:01:20,509 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1017 transitions. [2022-09-20 23:01:20,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1017 transitions. [2022-09-20 23:01:20,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:20,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1017 transitions. [2022-09-20 23:01:20,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 67.8) internal successors, (1017), 15 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:20,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:20,545 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:20,547 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 178 flow. Second operand 15 states and 1017 transitions. [2022-09-20 23:01:20,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 118 transitions, 441 flow [2022-09-20 23:01:20,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 118 transitions, 395 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-20 23:01:20,554 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 242 flow [2022-09-20 23:01:20,555 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=242, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2022-09-20 23:01:20,558 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-09-20 23:01:20,558 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 242 flow [2022-09-20 23:01:20,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:20,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:20,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 23:01:20,560 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)] === [2022-09-20 23:01:20,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:20,560 INFO L85 PathProgramCache]: Analyzing trace with hash 413818620, now seen corresponding path program 2 times [2022-09-20 23:01:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:20,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899332001] [2022-09-20 23:01:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:20,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:20,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899332001] [2022-09-20 23:01:20,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899332001] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:20,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:20,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-20 23:01:20,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604916223] [2022-09-20 23:01:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:20,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-20 23:01:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-20 23:01:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-20 23:01:20,880 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:20,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:20,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:20,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:20,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:21,267 INFO L130 PetriNetUnfolder]: 55/296 cut-off events. [2022-09-20 23:01:21,272 INFO L131 PetriNetUnfolder]: For 109/117 co-relation queries the response was YES. [2022-09-20 23:01:21,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 296 events. 55/296 cut-off events. For 109/117 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1310 event pairs, 8 based on Foata normal form. 4/298 useless extension candidates. Maximal degree in co-relation 585. Up to 63 conditions per place. [2022-09-20 23:01:21,279 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 36 selfloop transitions, 24 changer transitions 17/127 dead transitions. [2022-09-20 23:01:21,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 127 transitions, 551 flow [2022-09-20 23:01:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 23:01:21,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 23:01:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 891 transitions. [2022-09-20 23:01:21,282 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7291325695581015 [2022-09-20 23:01:21,282 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 891 transitions. [2022-09-20 23:01:21,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 891 transitions. [2022-09-20 23:01:21,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:21,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 891 transitions. [2022-09-20 23:01:21,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.53846153846153) internal successors, (891), 13 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:21,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:21,289 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:21,289 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 242 flow. Second operand 13 states and 891 transitions. [2022-09-20 23:01:21,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 127 transitions, 551 flow [2022-09-20 23:01:21,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 127 transitions, 521 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-09-20 23:01:21,298 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 350 flow [2022-09-20 23:01:21,298 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2022-09-20 23:01:21,299 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-09-20 23:01:21,299 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 350 flow [2022-09-20 23:01:21,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:21,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:21,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:21,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 23:01:21,300 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)] === [2022-09-20 23:01:21,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:21,301 INFO L85 PathProgramCache]: Analyzing trace with hash -968342354, now seen corresponding path program 3 times [2022-09-20 23:01:21,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:21,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185606564] [2022-09-20 23:01:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:21,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:21,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:21,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185606564] [2022-09-20 23:01:21,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185606564] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:21,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:21,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 23:01:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358900381] [2022-09-20 23:01:21,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:21,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 23:01:21,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:21,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 23:01:21,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 23:01:21,598 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:21,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 350 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:21,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:21,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:21,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:22,015 INFO L130 PetriNetUnfolder]: 49/293 cut-off events. [2022-09-20 23:01:22,015 INFO L131 PetriNetUnfolder]: For 226/234 co-relation queries the response was YES. [2022-09-20 23:01:22,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 293 events. 49/293 cut-off events. For 226/234 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1338 event pairs, 5 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 690. Up to 54 conditions per place. [2022-09-20 23:01:22,017 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 26 selfloop transitions, 17 changer transitions 32/125 dead transitions. [2022-09-20 23:01:22,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 125 transitions, 640 flow [2022-09-20 23:01:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 23:01:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 23:01:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-09-20 23:01:22,022 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2022-09-20 23:01:22,022 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 884 transitions. [2022-09-20 23:01:22,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 884 transitions. [2022-09-20 23:01:22,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:22,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 884 transitions. [2022-09-20 23:01:22,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,028 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,028 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 350 flow. Second operand 13 states and 884 transitions. [2022-09-20 23:01:22,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 125 transitions, 640 flow [2022-09-20 23:01:22,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 125 transitions, 572 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-09-20 23:01:22,036 INFO L231 Difference]: Finished difference. Result has 112 places, 89 transitions, 311 flow [2022-09-20 23:01:22,037 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=311, PETRI_PLACES=112, PETRI_TRANSITIONS=89} [2022-09-20 23:01:22,039 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 24 predicate places. [2022-09-20 23:01:22,039 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 89 transitions, 311 flow [2022-09-20 23:01:22,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:22,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:22,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 23:01:22,040 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)] === [2022-09-20 23:01:22,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash -941078784, now seen corresponding path program 4 times [2022-09-20 23:01:22,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:22,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984829850] [2022-09-20 23:01:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:22,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:22,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984829850] [2022-09-20 23:01:22,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984829850] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:22,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:22,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 23:01:22,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304560811] [2022-09-20 23:01:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:22,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 23:01:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:22,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 23:01:22,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 23:01:22,322 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:22,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 89 transitions, 311 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:22,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:22,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:22,721 INFO L130 PetriNetUnfolder]: 18/184 cut-off events. [2022-09-20 23:01:22,722 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-09-20 23:01:22,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 184 events. 18/184 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 604 event pairs, 6 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 388. Up to 32 conditions per place. [2022-09-20 23:01:22,723 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 28 selfloop transitions, 15 changer transitions 16/109 dead transitions. [2022-09-20 23:01:22,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 512 flow [2022-09-20 23:01:22,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-20 23:01:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-09-20 23:01:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 940 transitions. [2022-09-20 23:01:22,727 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-09-20 23:01:22,727 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 940 transitions. [2022-09-20 23:01:22,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 940 transitions. [2022-09-20 23:01:22,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:22,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 940 transitions. [2022-09-20 23:01:22,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 67.14285714285714) internal successors, (940), 14 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,735 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,735 INFO L175 Difference]: Start difference. First operand has 112 places, 89 transitions, 311 flow. Second operand 14 states and 940 transitions. [2022-09-20 23:01:22,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 512 flow [2022-09-20 23:01:22,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 440 flow, removed 19 selfloop flow, removed 14 redundant places. [2022-09-20 23:01:22,740 INFO L231 Difference]: Finished difference. Result has 106 places, 85 transitions, 267 flow [2022-09-20 23:01:22,740 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=267, PETRI_PLACES=106, PETRI_TRANSITIONS=85} [2022-09-20 23:01:22,741 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-09-20 23:01:22,742 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 85 transitions, 267 flow [2022-09-20 23:01:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:22,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:22,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 23:01:22,747 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)] === [2022-09-20 23:01:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:22,747 INFO L85 PathProgramCache]: Analyzing trace with hash 939941542, now seen corresponding path program 5 times [2022-09-20 23:01:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:22,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232124995] [2022-09-20 23:01:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:22,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:22,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:22,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232124995] [2022-09-20 23:01:22,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232124995] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:22,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:22,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 23:01:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610698553] [2022-09-20 23:01:22,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:22,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 23:01:22,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 23:01:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 23:01:22,991 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:22,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 85 transitions, 267 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:22,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:22,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:22,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:23,264 INFO L130 PetriNetUnfolder]: 10/131 cut-off events. [2022-09-20 23:01:23,264 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-09-20 23:01:23,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 131 events. 10/131 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 282 event pairs, 1 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 257. Up to 22 conditions per place. [2022-09-20 23:01:23,265 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 22 selfloop transitions, 6 changer transitions 19/97 dead transitions. [2022-09-20 23:01:23,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 97 transitions, 398 flow [2022-09-20 23:01:23,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 23:01:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 23:01:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 865 transitions. [2022-09-20 23:01:23,270 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7078559738134206 [2022-09-20 23:01:23,270 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 865 transitions. [2022-09-20 23:01:23,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 865 transitions. [2022-09-20 23:01:23,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:23,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 865 transitions. [2022-09-20 23:01:23,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.53846153846153) internal successors, (865), 13 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,275 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,276 INFO L175 Difference]: Start difference. First operand has 106 places, 85 transitions, 267 flow. Second operand 13 states and 865 transitions. [2022-09-20 23:01:23,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 97 transitions, 398 flow [2022-09-20 23:01:23,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 334 flow, removed 18 selfloop flow, removed 13 redundant places. [2022-09-20 23:01:23,281 INFO L231 Difference]: Finished difference. Result has 104 places, 78 transitions, 195 flow [2022-09-20 23:01:23,281 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=195, PETRI_PLACES=104, PETRI_TRANSITIONS=78} [2022-09-20 23:01:23,283 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2022-09-20 23:01:23,284 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 78 transitions, 195 flow [2022-09-20 23:01:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 23:01:23,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 23:01:23,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 23:01:23,285 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-20 23:01:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 23:01:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash 844015876, now seen corresponding path program 6 times [2022-09-20 23:01:23,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 23:01:23,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555603849] [2022-09-20 23:01:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 23:01:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 23:01:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 23:01:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 23:01:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 23:01:23,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555603849] [2022-09-20 23:01:23,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555603849] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 23:01:23,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 23:01:23,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 23:01:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076094123] [2022-09-20 23:01:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 23:01:23,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 23:01:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 23:01:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 23:01:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 23:01:23,510 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-09-20 23:01:23,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 78 transitions, 195 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 23:01:23,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-09-20 23:01:23,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 23:01:23,781 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-09-20 23:01:23,782 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-09-20 23:01:23,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 81 events. 2/81 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2022-09-20 23:01:23,782 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-09-20 23:01:23,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 76 transitions, 246 flow [2022-09-20 23:01:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 23:01:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 23:01:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 722 transitions. [2022-09-20 23:01:23,785 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6982591876208898 [2022-09-20 23:01:23,785 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 722 transitions. [2022-09-20 23:01:23,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 722 transitions. [2022-09-20 23:01:23,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 23:01:23,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 722 transitions. [2022-09-20 23:01:23,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,790 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,790 INFO L175 Difference]: Start difference. First operand has 104 places, 78 transitions, 195 flow. Second operand 11 states and 722 transitions. [2022-09-20 23:01:23,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 76 transitions, 246 flow [2022-09-20 23:01:23,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 76 transitions, 222 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-09-20 23:01:23,791 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-09-20 23:01:23,792 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-09-20 23:01:23,792 INFO L287 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2022-09-20 23:01:23,792 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-09-20 23:01:23,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 23:01:23,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-09-20 23:01:23,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-09-20 23:01:23,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-20 23:01:23,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-09-20 23:01:23,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 23:01:23,796 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-09-20 23:01:23,799 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 23:01:23,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 23:01:23,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 11:01:23 BasicIcfg [2022-09-20 23:01:23,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 23:01:23,804 INFO L158 Benchmark]: Toolchain (without parser) took 5712.73ms. Allocated memory was 184.5MB in the beginning and 319.8MB in the end (delta: 135.3MB). Free memory was 154.2MB in the beginning and 245.0MB in the end (delta: -90.8MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,804 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 23:01:23,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.43ms. Allocated memory was 184.5MB in the beginning and 266.3MB in the end (delta: 81.8MB). Free memory was 154.0MB in the beginning and 235.2MB in the end (delta: -81.2MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.12ms. Allocated memory is still 266.3MB. Free memory was 235.2MB in the beginning and 233.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,806 INFO L158 Benchmark]: Boogie Preprocessor took 29.61ms. Allocated memory is still 266.3MB. Free memory was 233.7MB in the beginning and 232.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,806 INFO L158 Benchmark]: RCFGBuilder took 410.93ms. Allocated memory is still 266.3MB. Free memory was 232.6MB in the beginning and 219.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,807 INFO L158 Benchmark]: TraceAbstraction took 4905.30ms. Allocated memory was 266.3MB in the beginning and 319.8MB in the end (delta: 53.5MB). Free memory was 218.5MB in the beginning and 245.0MB in the end (delta: -26.5MB). Peak memory consumption was 26.4MB. Max. memory is 8.0GB. [2022-09-20 23:01:23,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.43ms. Allocated memory was 184.5MB in the beginning and 266.3MB in the end (delta: 81.8MB). Free memory was 154.0MB in the beginning and 235.2MB in the end (delta: -81.2MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.12ms. Allocated memory is still 266.3MB. Free memory was 235.2MB in the beginning and 233.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.61ms. Allocated memory is still 266.3MB. Free memory was 233.7MB in the beginning and 232.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 410.93ms. Allocated memory is still 266.3MB. Free memory was 232.6MB in the beginning and 219.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4905.30ms. Allocated memory was 266.3MB in the beginning and 319.8MB in the end (delta: 53.5MB). Free memory was 218.5MB in the beginning and 245.0MB in the end (delta: -26.5MB). Peak memory consumption was 26.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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 7 procedures, 111 locations, 4 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 360 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 761 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 79 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 14 SyntacticMatches, 11 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=2, InterpolantAutomatonStates: 79, 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, 1.5s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 7266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 23:01:23,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...