./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i -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 --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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:48:16,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:48:16,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:48:16,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:48:16,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:48:16,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:48:16,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:48:16,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:48:16,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:48:16,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:48:16,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:48:16,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:48:16,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:48:16,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:48:16,445 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:48:16,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:48:16,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:48:16,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:48:16,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:48:16,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:48:16,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:48:16,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:48:16,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:48:16,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:48:16,450 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:48:16,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:48:16,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:48:16,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:48:16,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:48:16,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:48:16,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:48:16,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:48:16,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:48:16,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:48:16,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:48:16,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:48:16,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:48:16,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:48:16,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:48:16,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:48:16,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:48:16,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:48:16,454 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2024-10-13 06:48:16,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:48:16,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:48:16,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:48:16,694 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:48:16,695 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:48:16,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-10-13 06:48:17,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:48:18,160 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:48:18,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-10-13 06:48:18,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b11bdb19/bd0f2c9215574d0d8a7111f215213649/FLAG5dadd0d32 [2024-10-13 06:48:18,196 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b11bdb19/bd0f2c9215574d0d8a7111f215213649 [2024-10-13 06:48:18,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:48:18,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:48:18,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:48:18,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:48:18,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:48:18,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb43859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18, skipping insertion in model container [2024-10-13 06:48:18,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:48:18,552 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2024-10-13 06:48:18,559 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2024-10-13 06:48:18,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:48:18,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:48:18,639 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2024-10-13 06:48:18,641 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2024-10-13 06:48:18,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:48:18,725 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:48:18,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18 WrapperNode [2024-10-13 06:48:18,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:48:18,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:48:18,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:48:18,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:48:18,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,803 INFO L138 Inliner]: procedures = 274, calls = 49, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 196 [2024-10-13 06:48:18,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:48:18,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:48:18,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:48:18,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:48:18,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,841 INFO L175 MemorySlicer]: Split 34 memory accesses to 4 slices as follows [2, 5, 3, 24]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 13 writes are split as follows [0, 0, 2, 11]. [2024-10-13 06:48:18,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:48:18,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:48:18,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:48:18,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:48:18,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (1/1) ... [2024-10-13 06:48:18,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:48:18,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:48:18,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:48:18,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:48:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-13 06:48:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-13 06:48:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-13 06:48:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:48:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:48:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 06:48:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:48:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:48:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:48:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:48:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:48:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:48:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:48:18,938 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 06:48:19,091 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:48:19,094 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:48:19,372 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 06:48:19,372 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:48:19,569 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:48:19,569 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 06:48:19,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:19 BoogieIcfgContainer [2024-10-13 06:48:19,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:48:19,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:48:19,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:48:19,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:48:19,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:48:18" (1/3) ... [2024-10-13 06:48:19,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cb11df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:19, skipping insertion in model container [2024-10-13 06:48:19,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:48:18" (2/3) ... [2024-10-13 06:48:19,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cb11df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:19, skipping insertion in model container [2024-10-13 06:48:19,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:19" (3/3) ... [2024-10-13 06:48:19,580 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2024-10-13 06:48:19,594 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:48:19,594 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 06:48:19,594 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 06:48:19,647 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 06:48:19,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 40 transitions, 94 flow [2024-10-13 06:48:19,701 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-10-13 06:48:19,702 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 06:48:19,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 7/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 30. Up to 3 conditions per place. [2024-10-13 06:48:19,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 40 transitions, 94 flow [2024-10-13 06:48:19,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 36 transitions, 81 flow [2024-10-13 06:48:19,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:48:19,724 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d0a5d51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:48:19,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 06:48:19,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 06:48:19,728 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-10-13 06:48:19,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 06:48:19,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:19,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 06:48:19,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:19,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash 528975, now seen corresponding path program 1 times [2024-10-13 06:48:19,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:19,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877686469] [2024-10-13 06:48:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:19,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:19,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:19,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877686469] [2024-10-13 06:48:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877686469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:48:19,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:48:19,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:48:19,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589225187] [2024-10-13 06:48:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:48:19,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:48:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:48:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:48:19,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:19,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-10-13 06:48:19,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:19,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:19,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:20,114 INFO L124 PetriNetUnfolderBase]: 288/497 cut-off events. [2024-10-13 06:48:20,115 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-13 06:48:20,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 497 events. 288/497 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1956 event pairs, 197 based on Foata normal form. 15/435 useless extension candidates. Maximal degree in co-relation 910. Up to 458 conditions per place. [2024-10-13 06:48:20,122 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 25 selfloop transitions, 0 changer transitions 2/32 dead transitions. [2024-10-13 06:48:20,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 127 flow [2024-10-13 06:48:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:48:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 06:48:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 45 transitions. [2024-10-13 06:48:20,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-10-13 06:48:20,136 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 81 flow. Second operand 2 states and 45 transitions. [2024-10-13 06:48:20,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 127 flow [2024-10-13 06:48:20,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 06:48:20,140 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 64 flow [2024-10-13 06:48:20,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2024-10-13 06:48:20,148 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2024-10-13 06:48:20,151 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 64 flow [2024-10-13 06:48:20,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-10-13 06:48:20,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:20,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:20,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:48:20,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:20,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -976015666, now seen corresponding path program 1 times [2024-10-13 06:48:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592612833] [2024-10-13 06:48:20,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:20,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592612833] [2024-10-13 06:48:20,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592612833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:48:20,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:48:20,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:48:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546481777] [2024-10-13 06:48:20,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:48:20,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:48:20,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:20,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:48:20,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:48:20,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:20,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-13 06:48:20,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:20,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:20,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:20,477 INFO L124 PetriNetUnfolderBase]: 147/301 cut-off events. [2024-10-13 06:48:20,478 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 06:48:20,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 301 events. 147/301 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1068 event pairs, 76 based on Foata normal form. 13/279 useless extension candidates. Maximal degree in co-relation 588. Up to 146 conditions per place. [2024-10-13 06:48:20,480 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 27 selfloop transitions, 2 changer transitions 4/38 dead transitions. [2024-10-13 06:48:20,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 149 flow [2024-10-13 06:48:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:48:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 06:48:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-10-13 06:48:20,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-10-13 06:48:20,481 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 64 flow. Second operand 3 states and 58 transitions. [2024-10-13 06:48:20,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 149 flow [2024-10-13 06:48:20,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 06:48:20,483 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 70 flow [2024-10-13 06:48:20,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2024-10-13 06:48:20,484 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2024-10-13 06:48:20,484 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 70 flow [2024-10-13 06:48:20,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-13 06:48:20,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:20,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:20,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:48:20,486 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:20,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash -840780127, now seen corresponding path program 1 times [2024-10-13 06:48:20,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537628541] [2024-10-13 06:48:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:20,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537628541] [2024-10-13 06:48:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537628541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:48:20,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:48:20,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:48:20,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144086992] [2024-10-13 06:48:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:48:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:48:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:20,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:48:20,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:48:20,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:20,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-13 06:48:20,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:20,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:20,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:20,663 INFO L124 PetriNetUnfolderBase]: 149/306 cut-off events. [2024-10-13 06:48:20,663 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-13 06:48:20,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 306 events. 149/306 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1063 event pairs, 118 based on Foata normal form. 8/294 useless extension candidates. Maximal degree in co-relation 624. Up to 257 conditions per place. [2024-10-13 06:48:20,667 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 28 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2024-10-13 06:48:20,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 144 flow [2024-10-13 06:48:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:48:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 06:48:20,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-10-13 06:48:20,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-10-13 06:48:20,669 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 70 flow. Second operand 3 states and 55 transitions. [2024-10-13 06:48:20,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 144 flow [2024-10-13 06:48:20,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 06:48:20,670 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 78 flow [2024-10-13 06:48:20,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2024-10-13 06:48:20,670 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2024-10-13 06:48:20,670 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 78 flow [2024-10-13 06:48:20,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-13 06:48:20,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:20,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:20,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:48:20,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:20,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:20,673 INFO L85 PathProgramCache]: Analyzing trace with hash 102576644, now seen corresponding path program 1 times [2024-10-13 06:48:20,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:20,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276891704] [2024-10-13 06:48:20,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:20,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:20,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276891704] [2024-10-13 06:48:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276891704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:48:20,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:48:20,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:48:20,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111848371] [2024-10-13 06:48:20,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:48:20,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:48:20,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:20,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:48:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:48:20,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:20,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-13 06:48:20,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:20,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:20,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:20,874 INFO L124 PetriNetUnfolderBase]: 112/263 cut-off events. [2024-10-13 06:48:20,874 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-13 06:48:20,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 263 events. 112/263 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 913 event pairs, 33 based on Foata normal form. 10/257 useless extension candidates. Maximal degree in co-relation 543. Up to 142 conditions per place. [2024-10-13 06:48:20,877 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 28 selfloop transitions, 3 changer transitions 1/37 dead transitions. [2024-10-13 06:48:20,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 159 flow [2024-10-13 06:48:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:48:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 06:48:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-10-13 06:48:20,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-10-13 06:48:20,878 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 78 flow. Second operand 3 states and 57 transitions. [2024-10-13 06:48:20,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 159 flow [2024-10-13 06:48:20,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 155 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-13 06:48:20,879 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 80 flow [2024-10-13 06:48:20,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-10-13 06:48:20,880 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-10-13 06:48:20,880 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 80 flow [2024-10-13 06:48:20,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-13 06:48:20,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:20,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:20,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:48:20,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:20,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash -73938727, now seen corresponding path program 1 times [2024-10-13 06:48:20,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:20,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744556050] [2024-10-13 06:48:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:20,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744556050] [2024-10-13 06:48:20,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744556050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:48:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953329163] [2024-10-13 06:48:20,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:20,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:48:20,949 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) [2024-10-13 06:48:20,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 06:48:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:21,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 06:48:21,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:48:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:21,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:48:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:21,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953329163] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 06:48:21,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 06:48:21,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-13 06:48:21,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403635711] [2024-10-13 06:48:21,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 06:48:21,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:48:21,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:21,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:48:21,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:48:21,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:21,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 80 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-10-13 06:48:21,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:21,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:21,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:21,241 INFO L124 PetriNetUnfolderBase]: 130/281 cut-off events. [2024-10-13 06:48:21,242 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-13 06:48:21,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 281 events. 130/281 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 898 event pairs, 90 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 641. Up to 207 conditions per place. [2024-10-13 06:48:21,243 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 39 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2024-10-13 06:48:21,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 220 flow [2024-10-13 06:48:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:48:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 06:48:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 95 transitions. [2024-10-13 06:48:21,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2024-10-13 06:48:21,245 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 80 flow. Second operand 6 states and 95 transitions. [2024-10-13 06:48:21,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 220 flow [2024-10-13 06:48:21,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 06:48:21,246 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 113 flow [2024-10-13 06:48:21,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-10-13 06:48:21,247 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2024-10-13 06:48:21,247 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 113 flow [2024-10-13 06:48:21,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2024-10-13 06:48:21,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:21,248 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:21,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 06:48:21,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:21,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:21,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1806582274, now seen corresponding path program 2 times [2024-10-13 06:48:21,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:21,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173407897] [2024-10-13 06:48:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:21,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173407897] [2024-10-13 06:48:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173407897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:48:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905904003] [2024-10-13 06:48:21,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 06:48:21,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:21,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:48:21,571 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) [2024-10-13 06:48:21,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 06:48:21,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 06:48:21,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 06:48:21,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 06:48:21,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:48:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:21,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:48:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:21,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905904003] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 06:48:21,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 06:48:21,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-13 06:48:21,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508616285] [2024-10-13 06:48:21,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 06:48:21,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 06:48:21,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:21,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 06:48:21,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:48:21,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:21,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 113 flow. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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) [2024-10-13 06:48:21,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:21,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:21,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:21,939 INFO L124 PetriNetUnfolderBase]: 166/353 cut-off events. [2024-10-13 06:48:21,940 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2024-10-13 06:48:21,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 353 events. 166/353 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1097 event pairs, 90 based on Foata normal form. 36/374 useless extension candidates. Maximal degree in co-relation 921. Up to 207 conditions per place. [2024-10-13 06:48:21,943 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 63 selfloop transitions, 11 changer transitions 0/79 dead transitions. [2024-10-13 06:48:21,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 79 transitions, 397 flow [2024-10-13 06:48:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:48:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 06:48:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 176 transitions. [2024-10-13 06:48:21,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2024-10-13 06:48:21,945 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 113 flow. Second operand 12 states and 176 transitions. [2024-10-13 06:48:21,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 79 transitions, 397 flow [2024-10-13 06:48:21,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 79 transitions, 383 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-13 06:48:21,949 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 183 flow [2024-10-13 06:48:21,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=183, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2024-10-13 06:48:21,950 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2024-10-13 06:48:21,951 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 183 flow [2024-10-13 06:48:21,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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) [2024-10-13 06:48:21,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:21,951 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:21,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 06:48:22,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 06:48:22,153 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:22,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -207915810, now seen corresponding path program 3 times [2024-10-13 06:48:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:22,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917778346] [2024-10-13 06:48:22,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917778346] [2024-10-13 06:48:22,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917778346] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:48:22,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253553108] [2024-10-13 06:48:22,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 06:48:22,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:22,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:48:22,416 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) [2024-10-13 06:48:22,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 06:48:24,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 06:48:24,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 06:48:24,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 06:48:24,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:48:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:24,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:48:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:24,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253553108] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 06:48:24,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 06:48:24,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-10-13 06:48:24,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342513413] [2024-10-13 06:48:24,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 06:48:24,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 06:48:24,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:48:24,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 06:48:24,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-10-13 06:48:24,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-10-13 06:48:24,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 183 flow. Second operand has 23 states, 23 states have (on average 9.782608695652174) internal successors, (225), 23 states have internal predecessors, (225), 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) [2024-10-13 06:48:24,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:48:24,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-10-13 06:48:24,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:48:25,038 INFO L124 PetriNetUnfolderBase]: 226/473 cut-off events. [2024-10-13 06:48:25,039 INFO L125 PetriNetUnfolderBase]: For 2476/2476 co-relation queries the response was YES. [2024-10-13 06:48:25,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 473 events. 226/473 cut-off events. For 2476/2476 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1429 event pairs, 90 based on Foata normal form. 60/518 useless extension candidates. Maximal degree in co-relation 1463. Up to 207 conditions per place. [2024-10-13 06:48:25,042 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 103 selfloop transitions, 21 changer transitions 0/129 dead transitions. [2024-10-13 06:48:25,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 129 transitions, 711 flow [2024-10-13 06:48:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 06:48:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-13 06:48:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 310 transitions. [2024-10-13 06:48:25,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3522727272727273 [2024-10-13 06:48:25,045 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 183 flow. Second operand 22 states and 310 transitions. [2024-10-13 06:48:25,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 129 transitions, 711 flow [2024-10-13 06:48:25,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 129 transitions, 643 flow, removed 29 selfloop flow, removed 5 redundant places. [2024-10-13 06:48:25,054 INFO L231 Difference]: Finished difference. Result has 84 places, 49 transitions, 279 flow [2024-10-13 06:48:25,054 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=279, PETRI_PLACES=84, PETRI_TRANSITIONS=49} [2024-10-13 06:48:25,055 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 48 predicate places. [2024-10-13 06:48:25,056 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 49 transitions, 279 flow [2024-10-13 06:48:25,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.782608695652174) internal successors, (225), 23 states have internal predecessors, (225), 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) [2024-10-13 06:48:25,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:48:25,058 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:48:25,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 06:48:25,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:25,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 06:48:25,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:48:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1244341506, now seen corresponding path program 4 times [2024-10-13 06:48:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:48:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820735005] [2024-10-13 06:48:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:48:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:48:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:48:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:41,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:48:41,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820735005] [2024-10-13 06:48:41,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820735005] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:48:41,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869689700] [2024-10-13 06:48:41,290 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 06:48:41,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:48:41,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:48:41,292 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) [2024-10-13 06:48:41,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 06:48:41,590 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 06:48:41,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 06:48:41,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 202 conjuncts are in the unsatisfiable core [2024-10-13 06:48:41,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:48:41,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 15 [2024-10-13 06:48:41,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 131 [2024-10-13 06:48:41,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 47 [2024-10-13 06:48:41,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-10-13 06:48:41,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 105 [2024-10-13 06:48:41,883 INFO L378 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 49 treesize of output 37 [2024-10-13 06:48:41,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 110 [2024-10-13 06:48:41,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:41,985 INFO L378 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 56 treesize of output 44 [2024-10-13 06:48:41,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:42,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 115 [2024-10-13 06:48:42,070 INFO L378 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 48 treesize of output 36 [2024-10-13 06:48:42,083 INFO L378 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 48 treesize of output 36 [2024-10-13 06:48:42,098 INFO L378 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 63 treesize of output 51 [2024-10-13 06:48:42,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:42,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 120 [2024-10-13 06:48:42,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:42,174 INFO L378 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 70 treesize of output 58 [2024-10-13 06:48:42,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 138 [2024-10-13 06:48:42,270 INFO L378 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 142 treesize of output 126 [2024-10-13 06:48:42,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 142 treesize of output 120 [2024-10-13 06:48:42,285 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-10-13 06:48:42,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 143 [2024-10-13 06:48:42,386 INFO L378 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 63 treesize of output 51 [2024-10-13 06:48:42,406 INFO L378 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 152 treesize of output 136 [2024-10-13 06:48:42,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 148 [2024-10-13 06:48:42,516 INFO L378 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 170 treesize of output 154 [2024-10-13 06:48:42,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 170 treesize of output 132 [2024-10-13 06:48:42,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 153 [2024-10-13 06:48:42,642 INFO L378 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 184 treesize of output 168 [2024-10-13 06:48:42,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 184 treesize of output 158 [2024-10-13 06:48:42,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 158 [2024-10-13 06:48:42,752 INFO L378 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 194 treesize of output 178 [2024-10-13 06:48:42,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 187 treesize of output 153 [2024-10-13 06:48:42,775 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-10-13 06:48:42,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 183 [2024-10-13 06:48:42,888 INFO L378 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 212 treesize of output 196 [2024-10-13 06:48:42,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 212 treesize of output 170 [2024-10-13 06:48:42,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 157 [2024-10-13 06:48:43,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 110 [2024-10-13 06:48:43,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 81 [2024-10-13 06:48:43,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 162 [2024-10-13 06:48:43,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 86 [2024-10-13 06:48:43,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 117 [2024-10-13 06:48:43,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 167 [2024-10-13 06:48:43,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 91 [2024-10-13 06:48:43,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 124 [2024-10-13 06:48:43,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 91 [2024-10-13 06:48:43,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 172 [2024-10-13 06:48:43,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 131 [2024-10-13 06:48:43,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 177 [2024-10-13 06:48:43,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 138 [2024-10-13 06:48:43,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 101 [2024-10-13 06:48:43,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 182 [2024-10-13 06:48:43,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 106 [2024-10-13 06:48:43,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:43,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 145 [2024-10-13 06:48:43,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:43,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 106 [2024-10-13 06:48:43,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 187 [2024-10-13 06:48:43,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:43,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 111 [2024-10-13 06:48:44,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 111 [2024-10-13 06:48:44,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 152 [2024-10-13 06:48:44,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 1 [2024-10-13 06:48:44,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 192 [2024-10-13 06:48:44,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 116 [2024-10-13 06:48:44,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 159 [2024-10-13 06:48:44,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 186 [2024-10-13 06:48:44,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 121 [2024-10-13 06:48:44,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:48:44,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 170 [2024-10-13 06:48:44,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:44,969 INFO L378 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 171 treesize of output 159 [2024-10-13 06:48:44,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 173 treesize of output 125 [2024-10-13 06:48:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:48:45,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:48:45,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:45,278 INFO L378 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22 [2024-10-13 06:48:45,288 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-10-13 06:48:45,288 INFO L378 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-10-13 06:48:45,736 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:45,800 INFO L349 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2024-10-13 06:48:45,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1126 treesize of output 693 [2024-10-13 06:48:45,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:45,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1107 treesize of output 679 [2024-10-13 06:48:45,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:45,936 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2024-10-13 06:48:45,985 INFO L349 Elim1Store]: treesize reduction 5, result has 76.2 percent of original size [2024-10-13 06:48:45,986 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 130 [2024-10-13 06:48:46,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:46,024 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 305 treesize of output 219 [2024-10-13 06:48:47,294 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:47,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:47,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 22951 treesize of output 13351 [2024-10-13 06:48:47,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:47,574 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 168 treesize of output 126 [2024-10-13 06:48:47,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:47,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 3204 treesize of output 2624 [2024-10-13 06:48:47,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:48:47,771 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 235 treesize of output 191 [2024-10-13 06:48:47,897 INFO L378 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 27 treesize of output 23 [2024-10-13 06:48:47,911 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:47,946 INFO L378 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 38 treesize of output 22 [2024-10-13 06:48:48,013 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:48,031 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:48,071 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:48,125 INFO L349 Elim1Store]: treesize reduction 5, result has 76.2 percent of original size [2024-10-13 06:48:48,125 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 130 [2024-10-13 06:48:48,145 INFO L378 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 30 treesize of output 18 [2024-10-13 06:48:48,223 INFO L349 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2024-10-13 06:48:48,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 793 treesize of output 688 [2024-10-13 06:48:48,393 INFO L349 Elim1Store]: treesize reduction 5, result has 94.1 percent of original size [2024-10-13 06:48:48,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 23428 treesize of output 13831 [2024-10-13 06:49:00,253 INFO L378 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 27 treesize of output 23 [2024-10-13 06:49:00,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:49:00,279 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 93 [2024-10-13 06:49:00,296 INFO L378 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 38 treesize of output 22 [2024-10-13 06:49:00,311 INFO L349 Elim1Store]: treesize reduction 5, result has 76.2 percent of original size [2024-10-13 06:49:00,311 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 735 treesize of output 466 [2024-10-13 06:49:00,334 INFO L378 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 30 treesize of output 18 [2024-10-13 06:49:00,338 INFO L378 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 30 treesize of output 18 [2024-10-13 06:49:00,346 INFO L378 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 38 treesize of output 22 [2024-10-13 06:49:00,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:49:00,370 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 451 treesize of output 323 [2024-10-13 06:49:22,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:49:22,233 INFO L378 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 367025 treesize of output 230341 [2024-10-13 06:49:22,454 INFO L378 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 45 treesize of output 25 [2024-10-13 06:49:22,483 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:22,820 INFO L349 Elim1Store]: treesize reduction 5, result has 97.2 percent of original size [2024-10-13 06:49:22,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 419121522 treesize of output 233843261 [2024-10-13 06:49:34,880 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 2964 DAG size of output: 188 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-13 06:49:34,945 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:34,978 INFO L378 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 45 treesize of output 25 [2024-10-13 06:49:35,034 INFO L378 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 45 treesize of output 25 [2024-10-13 06:49:35,072 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:35,097 INFO L378 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 45 treesize of output 25 [2024-10-13 06:49:35,140 INFO L378 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 45 treesize of output 25 [2024-10-13 06:49:35,168 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:35,189 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:35,241 INFO L378 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 52 treesize of output 28 [2024-10-13 06:49:35,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:49:35,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 1593516306 treesize of output 929659402