./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 03:52:38,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 03:52:38,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 03:52:38,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 03:52:38,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 03:52:38,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 03:52:38,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 03:52:38,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 03:52:38,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 03:52:38,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 03:52:38,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 03:52:38,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 03:52:38,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 03:52:38,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 03:52:38,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 03:52:38,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 03:52:38,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 03:52:38,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 03:52:38,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 03:52:38,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 03:52:38,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 03:52:38,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 03:52:38,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 03:52:38,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 03:52:38,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 03:52:38,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 03:52:38,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 03:52:38,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 03:52:38,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 03:52:38,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 03:52:38,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 03:52:38,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 03:52:38,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 03:52:38,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 03:52:38,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 03:52:38,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 03:52:38,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 03:52:38,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 03:52:38,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 03:52:38,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 03:52:38,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 03:52:38,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 03:52:38,458 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 03:52:38,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 03:52:38,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 03:52:38,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 03:52:38,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 03:52:38,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 03:52:38,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 03:52:38,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 03:52:38,462 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 03:52:38,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 03:52:38,462 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 03:52:38,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 03:52:38,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 03:52:38,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 03:52:38,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 03:52:38,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 03:52:38,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 03:52:38,463 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 03:52:38,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 03:52:38,464 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 03:52:38,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 03:52:38,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 03:52:38,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 03:52:38,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 03:52:38,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 03:52:38,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 03:52:38,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 03:52:38,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 03:52:38,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 03:52:38,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 03:52:38,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 03:52:38,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 03:52:38,467 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 03:52:38,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 03:52:38,467 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 03:52:38,467 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 03:52:38,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 03:52:38,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 03:52:38,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 03:52:38,804 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 03:52:38,805 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 03:52:38,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-31 03:52:39,972 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 03:52:40,172 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 03:52:40,173 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-08-31 03:52:40,179 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bed129f90/98ec94b65f984bafbffb0196202ed8ad/FLAG3817a5a09 [2023-08-31 03:52:40,190 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bed129f90/98ec94b65f984bafbffb0196202ed8ad [2023-08-31 03:52:40,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 03:52:40,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 03:52:40,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 03:52:40,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 03:52:40,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 03:52:40,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d16a358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40, skipping insertion in model container [2023-08-31 03:52:40,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 03:52:40,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 03:52:40,356 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-31 03:52:40,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 03:52:40,373 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 03:52:40,395 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c[2823,2836] [2023-08-31 03:52:40,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 03:52:40,406 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 03:52:40,406 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 03:52:40,411 INFO L208 MainTranslator]: Completed translation [2023-08-31 03:52:40,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40 WrapperNode [2023-08-31 03:52:40,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 03:52:40,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 03:52:40,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 03:52:40,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 03:52:40,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,453 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 236 [2023-08-31 03:52:40,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 03:52:40,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 03:52:40,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 03:52:40,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 03:52:40,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 03:52:40,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 03:52:40,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 03:52:40,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 03:52:40,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (1/1) ... [2023-08-31 03:52:40,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 03:52:40,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:40,522 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) [2023-08-31 03:52:40,533 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 [2023-08-31 03:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 03:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 03:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 03:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 03:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 03:52:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 03:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 03:52:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 03:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 03:52:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 03:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 03:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 03:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 03:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 03:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 03:52:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 03:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 03:52:40,612 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 03:52:40,760 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 03:52:40,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 03:52:41,146 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 03:52:41,238 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 03:52:41,238 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 03:52:41,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:52:41 BoogieIcfgContainer [2023-08-31 03:52:41,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 03:52:41,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 03:52:41,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 03:52:41,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 03:52:41,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 03:52:40" (1/3) ... [2023-08-31 03:52:41,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744797d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 03:52:41, skipping insertion in model container [2023-08-31 03:52:41,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:52:40" (2/3) ... [2023-08-31 03:52:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744797d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 03:52:41, skipping insertion in model container [2023-08-31 03:52:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:52:41" (3/3) ... [2023-08-31 03:52:41,254 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-08-31 03:52:41,261 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 03:52:41,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 03:52:41,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 03:52:41,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 03:52:41,338 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 03:52:41,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 284 transitions, 592 flow [2023-08-31 03:52:41,456 INFO L130 PetriNetUnfolder]: 27/281 cut-off events. [2023-08-31 03:52:41,456 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 03:52:41,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 281 events. 27/281 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-08-31 03:52:41,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 284 transitions, 592 flow [2023-08-31 03:52:41,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 271 transitions, 560 flow [2023-08-31 03:52:41,475 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 03:52:41,493 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 271 transitions, 560 flow [2023-08-31 03:52:41,501 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 271 transitions, 560 flow [2023-08-31 03:52:41,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 271 transitions, 560 flow [2023-08-31 03:52:41,587 INFO L130 PetriNetUnfolder]: 27/271 cut-off events. [2023-08-31 03:52:41,588 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 03:52:41,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 271 events. 27/271 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-08-31 03:52:41,591 INFO L119 LiptonReduction]: Number of co-enabled transitions 2634 [2023-08-31 03:52:49,979 INFO L134 LiptonReduction]: Checked pairs total: 3780 [2023-08-31 03:52:49,980 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-08-31 03:52:49,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 03:52:49,997 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=true, 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;@721ae8d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 03:52:49,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 03:52:50,004 INFO L130 PetriNetUnfolder]: 8/33 cut-off events. [2023-08-31 03:52:50,005 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 03:52:50,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:50,006 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] [2023-08-31 03:52:50,006 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)] === [2023-08-31 03:52:50,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash -823952724, now seen corresponding path program 1 times [2023-08-31 03:52:50,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:50,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361112268] [2023-08-31 03:52:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 03:52:50,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:50,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361112268] [2023-08-31 03:52:50,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361112268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 03:52:50,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 03:52:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 03:52:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228390628] [2023-08-31 03:52:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:50,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 03:52:50,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 03:52:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 03:52:50,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 584 [2023-08-31 03:52:50,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-08-31 03:52:50,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:50,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 584 [2023-08-31 03:52:50,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:50,820 INFO L130 PetriNetUnfolder]: 692/923 cut-off events. [2023-08-31 03:52:50,820 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-08-31 03:52:50,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 923 events. 692/923 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3152 event pairs, 315 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 1616. Up to 907 conditions per place. [2023-08-31 03:52:50,827 INFO L137 encePairwiseOnDemand]: 581/584 looper letters, 30 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-08-31 03:52:50,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 152 flow [2023-08-31 03:52:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 03:52:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 03:52:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 762 transitions. [2023-08-31 03:52:50,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349315068493151 [2023-08-31 03:52:50,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 762 transitions. [2023-08-31 03:52:50,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 762 transitions. [2023-08-31 03:52:50,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:50,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 762 transitions. [2023-08-31 03:52:50,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 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) [2023-08-31 03:52:50,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-08-31 03:52:50,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-08-31 03:52:50,862 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 86 flow. Second operand 3 states and 762 transitions. [2023-08-31 03:52:50,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 152 flow [2023-08-31 03:52:50,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 03:52:50,869 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 86 flow [2023-08-31 03:52:50,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-08-31 03:52:50,874 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-31 03:52:50,874 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 86 flow [2023-08-31 03:52:50,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-08-31 03:52:50,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:50,875 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] [2023-08-31 03:52:50,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 03:52:50,876 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)] === [2023-08-31 03:52:50,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1618956068, now seen corresponding path program 1 times [2023-08-31 03:52:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:50,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703437383] [2023-08-31 03:52:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 03:52:51,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:51,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703437383] [2023-08-31 03:52:51,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703437383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 03:52:51,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 03:52:51,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 03:52:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876492102] [2023-08-31 03:52:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:51,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 03:52:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 03:52:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-31 03:52:51,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 584 [2023-08-31 03:52:51,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 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) [2023-08-31 03:52:51,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:51,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 584 [2023-08-31 03:52:51,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:51,269 INFO L130 PetriNetUnfolder]: 692/925 cut-off events. [2023-08-31 03:52:51,269 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 03:52:51,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 925 events. 692/925 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3119 event pairs, 315 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1857. Up to 906 conditions per place. [2023-08-31 03:52:51,275 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 28 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-08-31 03:52:51,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-08-31 03:52:51,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 03:52:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 03:52:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1008 transitions. [2023-08-31 03:52:51,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4315068493150685 [2023-08-31 03:52:51,279 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1008 transitions. [2023-08-31 03:52:51,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1008 transitions. [2023-08-31 03:52:51,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:51,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1008 transitions. [2023-08-31 03:52:51,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 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) [2023-08-31 03:52:51,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 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) [2023-08-31 03:52:51,287 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 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) [2023-08-31 03:52:51,287 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 86 flow. Second operand 4 states and 1008 transitions. [2023-08-31 03:52:51,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-08-31 03:52:51,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 154 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 03:52:51,289 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-08-31 03:52:51,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-31 03:52:51,290 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2023-08-31 03:52:51,290 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-08-31 03:52:51,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 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) [2023-08-31 03:52:51,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:51,292 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] [2023-08-31 03:52:51,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 03:52:51,292 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)] === [2023-08-31 03:52:51,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1120690575, now seen corresponding path program 1 times [2023-08-31 03:52:51,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:51,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103391516] [2023-08-31 03:52:51,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:51,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 03:52:51,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:51,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103391516] [2023-08-31 03:52:51,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103391516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 03:52:51,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 03:52:51,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 03:52:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092060059] [2023-08-31 03:52:51,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:51,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 03:52:51,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 03:52:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 03:52:51,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 584 [2023-08-31 03:52:51,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2023-08-31 03:52:51,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:51,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 584 [2023-08-31 03:52:51,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:51,776 INFO L130 PetriNetUnfolder]: 1277/1690 cut-off events. [2023-08-31 03:52:51,776 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-31 03:52:51,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 1690 events. 1277/1690 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6505 event pairs, 264 based on Foata normal form. 1/1003 useless extension candidates. Maximal degree in co-relation 3407. Up to 1016 conditions per place. [2023-08-31 03:52:51,786 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 51 selfloop transitions, 4 changer transitions 1/59 dead transitions. [2023-08-31 03:52:51,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 271 flow [2023-08-31 03:52:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 03:52:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 03:52:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2023-08-31 03:52:51,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4571917808219178 [2023-08-31 03:52:51,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 801 transitions. [2023-08-31 03:52:51,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 801 transitions. [2023-08-31 03:52:51,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:51,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 801 transitions. [2023-08-31 03:52:51,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 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) [2023-08-31 03:52:51,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-08-31 03:52:51,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-08-31 03:52:51,796 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 3 states and 801 transitions. [2023-08-31 03:52:51,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 271 flow [2023-08-31 03:52:51,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 59 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 03:52:51,798 INFO L231 Difference]: Finished difference. Result has 38 places, 40 transitions, 135 flow [2023-08-31 03:52:51,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=38, PETRI_TRANSITIONS=40} [2023-08-31 03:52:51,799 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2023-08-31 03:52:51,799 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 40 transitions, 135 flow [2023-08-31 03:52:51,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2023-08-31 03:52:51,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:51,800 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] [2023-08-31 03:52:51,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 03:52:51,801 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)] === [2023-08-31 03:52:51,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1651521349, now seen corresponding path program 1 times [2023-08-31 03:52:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:51,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603121289] [2023-08-31 03:52:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:51,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:51,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:51,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603121289] [2023-08-31 03:52:51,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603121289] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:51,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635469650] [2023-08-31 03:52:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:51,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:51,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:51,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:52:51,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 03:52:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:52,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 03:52:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:52:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:52,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:52:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:52,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635469650] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 03:52:52,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 03:52:52,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-31 03:52:52,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930645577] [2023-08-31 03:52:52,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 03:52:52,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 03:52:52,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:52,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 03:52:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-08-31 03:52:52,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 584 [2023-08-31 03:52:52,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 135 flow. Second operand has 12 states, 12 states have (on average 235.91666666666666) internal successors, (2831), 12 states have internal predecessors, (2831), 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) [2023-08-31 03:52:52,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:52,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 584 [2023-08-31 03:52:52,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:53,033 INFO L130 PetriNetUnfolder]: 1914/2647 cut-off events. [2023-08-31 03:52:53,034 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2023-08-31 03:52:53,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 2647 events. 1914/2647 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 11676 event pairs, 666 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 3542. Up to 1262 conditions per place. [2023-08-31 03:52:53,048 INFO L137 encePairwiseOnDemand]: 573/584 looper letters, 87 selfloop transitions, 17 changer transitions 0/106 dead transitions. [2023-08-31 03:52:53,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 106 transitions, 548 flow [2023-08-31 03:52:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 03:52:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 03:52:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1961 transitions. [2023-08-31 03:52:53,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197345890410959 [2023-08-31 03:52:53,054 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1961 transitions. [2023-08-31 03:52:53,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1961 transitions. [2023-08-31 03:52:53,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:53,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1961 transitions. [2023-08-31 03:52:53,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 245.125) internal successors, (1961), 8 states have internal predecessors, (1961), 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) [2023-08-31 03:52:53,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-08-31 03:52:53,071 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-08-31 03:52:53,071 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 135 flow. Second operand 8 states and 1961 transitions. [2023-08-31 03:52:53,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 106 transitions, 548 flow [2023-08-31 03:52:53,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 106 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 03:52:53,076 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 250 flow [2023-08-31 03:52:53,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=250, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2023-08-31 03:52:53,078 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2023-08-31 03:52:53,079 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 250 flow [2023-08-31 03:52:53,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 235.91666666666666) internal successors, (2831), 12 states have internal predecessors, (2831), 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) [2023-08-31 03:52:53,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:53,081 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] [2023-08-31 03:52:53,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 03:52:53,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:53,288 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)] === [2023-08-31 03:52:53,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1450108102, now seen corresponding path program 1 times [2023-08-31 03:52:53,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:53,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965519262] [2023-08-31 03:52:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:53,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:53,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965519262] [2023-08-31 03:52:53,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965519262] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128787070] [2023-08-31 03:52:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:53,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:53,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:53,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:52:53,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 03:52:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:53,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 03:52:53,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:52:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:53,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:52:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:52:53,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128787070] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 03:52:53,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 03:52:53,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-31 03:52:53,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048017455] [2023-08-31 03:52:53,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 03:52:53,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 03:52:53,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:53,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 03:52:53,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-08-31 03:52:54,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 584 [2023-08-31 03:52:54,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 250 flow. Second operand has 12 states, 12 states have (on average 236.0) internal successors, (2832), 12 states have internal predecessors, (2832), 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) [2023-08-31 03:52:54,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:54,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 584 [2023-08-31 03:52:54,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:54,427 INFO L130 PetriNetUnfolder]: 1361/1892 cut-off events. [2023-08-31 03:52:54,427 INFO L131 PetriNetUnfolder]: For 315/337 co-relation queries the response was YES. [2023-08-31 03:52:54,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4626 conditions, 1892 events. 1361/1892 cut-off events. For 315/337 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7843 event pairs, 473 based on Foata normal form. 22/1379 useless extension candidates. Maximal degree in co-relation 4091. Up to 1170 conditions per place. [2023-08-31 03:52:54,439 INFO L137 encePairwiseOnDemand]: 574/584 looper letters, 43 selfloop transitions, 10 changer transitions 34/89 dead transitions. [2023-08-31 03:52:54,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 533 flow [2023-08-31 03:52:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 03:52:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 03:52:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1947 transitions. [2023-08-31 03:52:54,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4167380136986301 [2023-08-31 03:52:54,445 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1947 transitions. [2023-08-31 03:52:54,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1947 transitions. [2023-08-31 03:52:54,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:54,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1947 transitions. [2023-08-31 03:52:54,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 243.375) internal successors, (1947), 8 states have internal predecessors, (1947), 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) [2023-08-31 03:52:54,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-08-31 03:52:54,457 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-08-31 03:52:54,457 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 250 flow. Second operand 8 states and 1947 transitions. [2023-08-31 03:52:54,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 533 flow [2023-08-31 03:52:54,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 512 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-31 03:52:54,462 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 202 flow [2023-08-31 03:52:54,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-08-31 03:52:54,463 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-08-31 03:52:54,463 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 202 flow [2023-08-31 03:52:54,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 236.0) internal successors, (2832), 12 states have internal predecessors, (2832), 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) [2023-08-31 03:52:54,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:54,465 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 03:52:54,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 03:52:54,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:54,676 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)] === [2023-08-31 03:52:54,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash 552953634, now seen corresponding path program 2 times [2023-08-31 03:52:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025702720] [2023-08-31 03:52:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-31 03:52:54,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:54,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025702720] [2023-08-31 03:52:54,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025702720] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:54,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876498921] [2023-08-31 03:52:54,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 03:52:54,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:54,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:54,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:52:54,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 03:52:55,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 03:52:55,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 03:52:55,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 03:52:55,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:52:55,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-31 03:52:55,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:52:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-31 03:52:55,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876498921] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:55,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-31 03:52:55,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-08-31 03:52:55,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771015042] [2023-08-31 03:52:55,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:55,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 03:52:55,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:55,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 03:52:55,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-08-31 03:52:55,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 584 [2023-08-31 03:52:55,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 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) [2023-08-31 03:52:55,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:55,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 584 [2023-08-31 03:52:55,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:55,691 INFO L130 PetriNetUnfolder]: 1547/2085 cut-off events. [2023-08-31 03:52:55,691 INFO L131 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2023-08-31 03:52:55,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5551 conditions, 2085 events. 1547/2085 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8216 event pairs, 465 based on Foata normal form. 0/1677 useless extension candidates. Maximal degree in co-relation 5511. Up to 1568 conditions per place. [2023-08-31 03:52:55,705 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 55 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-08-31 03:52:55,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 385 flow [2023-08-31 03:52:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 03:52:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 03:52:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1449 transitions. [2023-08-31 03:52:55,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.413527397260274 [2023-08-31 03:52:55,710 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1449 transitions. [2023-08-31 03:52:55,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1449 transitions. [2023-08-31 03:52:55,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:55,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1449 transitions. [2023-08-31 03:52:55,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 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) [2023-08-31 03:52:55,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:55,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:55,721 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 202 flow. Second operand 6 states and 1449 transitions. [2023-08-31 03:52:55,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 385 flow [2023-08-31 03:52:55,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 62 transitions, 349 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-31 03:52:55,733 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 191 flow [2023-08-31 03:52:55,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2023-08-31 03:52:55,736 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2023-08-31 03:52:55,736 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 191 flow [2023-08-31 03:52:55,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 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) [2023-08-31 03:52:55,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:55,737 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 03:52:55,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 03:52:55,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:55,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 03:52:55,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1297932992, now seen corresponding path program 1 times [2023-08-31 03:52:55,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:55,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623857632] [2023-08-31 03:52:55,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-31 03:52:56,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623857632] [2023-08-31 03:52:56,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623857632] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:56,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157252068] [2023-08-31 03:52:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:56,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:56,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:56,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:52:56,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-31 03:52:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:56,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 03:52:56,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:52:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-31 03:52:56,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:52:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-31 03:52:56,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157252068] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:56,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-31 03:52:56,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-08-31 03:52:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331262960] [2023-08-31 03:52:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:56,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 03:52:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:56,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 03:52:56,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-08-31 03:52:56,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 584 [2023-08-31 03:52:56,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 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) [2023-08-31 03:52:56,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:56,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 584 [2023-08-31 03:52:56,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:56,715 INFO L130 PetriNetUnfolder]: 1146/1548 cut-off events. [2023-08-31 03:52:56,716 INFO L131 PetriNetUnfolder]: For 488/601 co-relation queries the response was YES. [2023-08-31 03:52:56,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 1548 events. 1146/1548 cut-off events. For 488/601 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5768 event pairs, 281 based on Foata normal form. 163/1370 useless extension candidates. Maximal degree in co-relation 3997. Up to 1015 conditions per place. [2023-08-31 03:52:56,724 INFO L137 encePairwiseOnDemand]: 578/584 looper letters, 49 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2023-08-31 03:52:56,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 346 flow [2023-08-31 03:52:56,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 03:52:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 03:52:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1445 transitions. [2023-08-31 03:52:56,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4123858447488584 [2023-08-31 03:52:56,728 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1445 transitions. [2023-08-31 03:52:56,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1445 transitions. [2023-08-31 03:52:56,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:56,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1445 transitions. [2023-08-31 03:52:56,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.83333333333334) internal successors, (1445), 6 states have internal predecessors, (1445), 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) [2023-08-31 03:52:56,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:56,737 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:56,737 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 191 flow. Second operand 6 states and 1445 transitions. [2023-08-31 03:52:56,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 346 flow [2023-08-31 03:52:56,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 331 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-31 03:52:56,741 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 208 flow [2023-08-31 03:52:56,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2023-08-31 03:52:56,742 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2023-08-31 03:52:56,742 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 208 flow [2023-08-31 03:52:56,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 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) [2023-08-31 03:52:56,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:56,743 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 03:52:56,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-31 03:52:56,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:56,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 03:52:56,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2052497291, now seen corresponding path program 1 times [2023-08-31 03:52:56,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:56,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901511248] [2023-08-31 03:52:56,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:56,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-31 03:52:57,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:52:57,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901511248] [2023-08-31 03:52:57,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901511248] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:57,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535370022] [2023-08-31 03:52:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:57,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:52:57,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:52:57,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-31 03:52:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:52:57,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-31 03:52:57,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:52:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-31 03:52:57,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:52:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-31 03:52:57,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535370022] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-31 03:52:57,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-31 03:52:57,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-08-31 03:52:57,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065827186] [2023-08-31 03:52:57,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 03:52:57,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 03:52:57,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 03:52:57,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 03:52:57,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-08-31 03:52:57,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 584 [2023-08-31 03:52:57,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 237.66666666666666) internal successors, (1426), 6 states have internal predecessors, (1426), 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) [2023-08-31 03:52:57,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 03:52:57,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 584 [2023-08-31 03:52:57,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 03:52:57,746 INFO L130 PetriNetUnfolder]: 991/1364 cut-off events. [2023-08-31 03:52:57,746 INFO L131 PetriNetUnfolder]: For 764/968 co-relation queries the response was YES. [2023-08-31 03:52:57,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3603 conditions, 1364 events. 991/1364 cut-off events. For 764/968 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4732 event pairs, 318 based on Foata normal form. 272/1348 useless extension candidates. Maximal degree in co-relation 3565. Up to 721 conditions per place. [2023-08-31 03:52:57,756 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 54 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2023-08-31 03:52:57,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 402 flow [2023-08-31 03:52:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 03:52:57,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 03:52:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1448 transitions. [2023-08-31 03:52:57,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4132420091324201 [2023-08-31 03:52:57,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1448 transitions. [2023-08-31 03:52:57,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1448 transitions. [2023-08-31 03:52:57,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 03:52:57,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1448 transitions. [2023-08-31 03:52:57,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.33333333333334) internal successors, (1448), 6 states have internal predecessors, (1448), 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) [2023-08-31 03:52:57,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:57,783 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-08-31 03:52:57,783 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 208 flow. Second operand 6 states and 1448 transitions. [2023-08-31 03:52:57,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 402 flow [2023-08-31 03:52:57,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 64 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 03:52:57,788 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 236 flow [2023-08-31 03:52:57,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-08-31 03:52:57,790 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-08-31 03:52:57,791 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 236 flow [2023-08-31 03:52:57,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.66666666666666) internal successors, (1426), 6 states have internal predecessors, (1426), 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) [2023-08-31 03:52:57,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 03:52:57,792 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 03:52:57,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-31 03:52:58,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:52:58,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 03:52:58,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 03:52:58,005 INFO L85 PathProgramCache]: Analyzing trace with hash 995945267, now seen corresponding path program 1 times [2023-08-31 03:52:58,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 03:52:58,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98916287] [2023-08-31 03:52:58,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:52:58,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 03:52:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:53:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 03:53:00,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 03:53:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98916287] [2023-08-31 03:53:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98916287] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 03:53:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83587708] [2023-08-31 03:53:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 03:53:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 03:53:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 03:53:00,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 03:53:00,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-31 03:53:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 03:53:01,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 74 conjunts are in the unsatisfiable core [2023-08-31 03:53:01,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 03:53:01,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-31 03:53:01,306 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-31 03:53:01,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-31 03:53:01,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:01,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-08-31 03:53:01,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 03:53:01,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-31 03:53:02,085 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-08-31 03:53:02,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2023-08-31 03:53:02,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 03:53:02,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 03:53:02,406 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2023-08-31 03:53:02,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 98 treesize of output 113 [2023-08-31 03:53:04,734 INFO L321 Elim1Store]: treesize reduction 96, result has 75.6 percent of original size [2023-08-31 03:53:04,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 262 treesize of output 442 [2023-08-31 03:53:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-31 03:53:11,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 03:53:11,770 WARN L839 $PredicateComparison]: unable to prove that (or (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|) (let ((.cse0 (+ c_~maxa~0 c_~maxb~0)) (.cse3 (+ c_~C~0.offset 4)) (.cse1 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (or (<= c_~maxc~0 .cse0) (forall ((v_ArrVal_505 (Array Int Int))) (<= c_~maxb~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse1)))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse2 c_~C~0.base) .cse3) .cse0) (<= c_~maxb~0 (select (select .cse2 c_~B~0.base) .cse1))))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse5 (select (select .cse4 c_~B~0.base) .cse1))) (or (<= (select (select .cse4 c_~C~0.base) .cse3) (+ .cse5 c_~maxa~0)) (< .cse5 c_~maxb~0))))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse1))) (or (<= c_~maxc~0 (+ .cse6 c_~maxa~0)) (< .cse6 c_~maxb~0))))))) is different from false [2023-08-31 03:53:12,155 WARN L839 $PredicateComparison]: unable to prove that (or (let ((.cse2 (+ c_~maxa~0 c_~maxb~0)) (.cse5 (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset 4)) (select (select |c_#memory_int| c_~B~0.base) (+ 4 c_~B~0.offset)))) (.cse4 (select |c_#memory_int| c_~C~0.base)) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_503 Int)) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse1 (+ ~C~0.offset 4))) (let ((.cse0 (store (store |c_#memory_int| c_~C~0.base (store .cse4 .cse1 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse0 c_~C~0.base) .cse1) .cse2) (<= c_~maxb~0 (select (select .cse0 c_~B~0.base) .cse3)))))) (< .cse5 v_ArrVal_503))) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (<= c_~maxb~0 (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse4 (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3)))) (<= c_~maxc~0 .cse2)) (forall ((v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse7 (+ ~C~0.offset 4))) (let ((.cse6 (store (store |c_#memory_int| c_~C~0.base (store .cse4 .cse7 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse8 (select (select .cse6 c_~B~0.base) .cse3))) (or (<= (select (select .cse6 c_~C~0.base) .cse7) (+ .cse8 c_~maxa~0)) (< .cse8 c_~maxb~0)))))))) (forall ((v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse9 (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse4 (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (< .cse9 c_~maxb~0) (<= c_~maxc~0 (+ .cse9 c_~maxa~0))))))))) (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|)) is different from false [2023-08-31 03:53:12,308 WARN L839 $PredicateComparison]: unable to prove that (or (let ((.cse2 (+ c_~maxa~0 c_~maxb~0)) (.cse5 (+ 4 c_~B~0.offset)) (.cse6 (+ c_~A~0.offset 4)) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse1 (+ ~C~0.offset 4))) (let ((.cse0 (store (store .cse4 c_~C~0.base (store (select .cse4 c_~C~0.base) .cse1 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse0 c_~C~0.base) .cse1) .cse2) (<= c_~maxb~0 (select (select .cse0 c_~B~0.base) .cse3)))))) (< (+ (select (select .cse4 c_~B~0.base) .cse5) (select (select .cse4 c_~A~0.base) .cse6)) v_ArrVal_503)))) (or (<= c_~maxc~0 .cse2) (forall ((v_ArrVal_502 (Array Int Int)) (~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse7 c_~B~0.base) .cse5) (select (select .cse7 c_~A~0.base) .cse6)) v_ArrVal_503) (<= c_~maxb~0 (select (select (store (store .cse7 c_~C~0.base (store (select .cse7 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3)))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse8 c_~B~0.base) .cse5) (select (select .cse8 c_~A~0.base) .cse6)) v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse11 (+ ~C~0.offset 4))) (let ((.cse10 (store (store .cse8 c_~C~0.base (store (select .cse8 c_~C~0.base) .cse11 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse9 (select (select .cse10 c_~B~0.base) .cse3))) (or (< .cse9 c_~maxb~0) (<= (select (select .cse10 c_~C~0.base) .cse11) (+ .cse9 c_~maxa~0)))))))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse12 c_~B~0.base) .cse5) (select (select .cse12 c_~A~0.base) .cse6)) v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse13 (select (select (store (store .cse12 c_~C~0.base (store (select .cse12 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (< .cse13 c_~maxb~0) (<= c_~maxc~0 (+ .cse13 c_~maxa~0)))))))))) (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|)) is different from false [2023-08-31 03:53:12,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:12,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6159 treesize of output 6027 [2023-08-31 03:53:12,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2753 treesize of output 2657 [2023-08-31 03:53:12,785 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:12,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2741 treesize of output 2708 [2023-08-31 03:53:12,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:12,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2677 treesize of output 2484 [2023-08-31 03:53:12,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2469 treesize of output 2421 [2023-08-31 03:53:13,080 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:13,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2545 treesize of output 2488 [2023-08-31 03:53:13,175 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:13,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2457 treesize of output 2416 [2023-08-31 03:53:13,284 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:13,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2441 treesize of output 2432 [2023-08-31 03:53:13,405 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 03:53:13,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2441 treesize of output 2432 Killed by 15