./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/queue.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/queue.i ./goblint.2024-06-19_11-23-25.files/protection/queue.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:44:05,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:44:05,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:44:05,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:44:05,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:44:05,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:44:05,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:44:05,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:44:05,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:44:05,212 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:44:05,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:44:05,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:44:05,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:44:05,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:44:05,214 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:44:05,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:44:05,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:44:05,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:44:05,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:44:05,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:44:05,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:44:05,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:44:05,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:44:05,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:44:05,216 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:44:05,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:44:05,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:44:05,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:44:05,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:44:05,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:44:05,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:44:05,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:44:05,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:44:05,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:44:05,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:44:05,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:44:05,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:44:05,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:44:05,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:44:05,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:44:05,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:44:05,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:44:05,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:44:05,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:44:05,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:44:05,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:44:05,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:44:05,433 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:44:05,433 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:44:05,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/queue.yml/witness.yml [2024-06-27 19:44:05,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:44:05,550 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:44:05,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue.i [2024-06-27 19:44:06,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:44:06,767 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:44:06,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i [2024-06-27 19:44:06,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccc42d59/a7deb65bf06945ef8a802b6f90f6657e/FLAG9c21cfcbc [2024-06-27 19:44:07,060 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccc42d59/a7deb65bf06945ef8a802b6f90f6657e [2024-06-27 19:44:07,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:44:07,061 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:44:07,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:44:07,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:44:07,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:44:07,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:44:05" (1/2) ... [2024-06-27 19:44:07,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcbaaee and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:44:07, skipping insertion in model container [2024-06-27 19:44:07,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:44:05" (1/2) ... [2024-06-27 19:44:07,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58660c39 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:44:07, skipping insertion in model container [2024-06-27 19:44:07,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:44:07" (2/2) ... [2024-06-27 19:44:07,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcbaaee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07, skipping insertion in model container [2024-06-27 19:44:07,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:44:07" (2/2) ... [2024-06-27 19:44:07,079 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:44:07,109 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:44:07,110 INFO L97 edCorrectnessWitness]: Location invariant before [L1064-L1064] ! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20) [2024-06-27 19:44:07,110 INFO L97 edCorrectnessWitness]: Location invariant before [L1065-L1065] ! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20) [2024-06-27 19:44:07,111 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-06-27 19:44:07,111 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:44:07,111 INFO L106 edCorrectnessWitness]: ghost_update [L1048-L1048] m_locked = 0; [2024-06-27 19:44:07,111 INFO L106 edCorrectnessWitness]: ghost_update [L1017-L1017] m_locked = 0; [2024-06-27 19:44:07,111 INFO L106 edCorrectnessWitness]: ghost_update [L1039-L1039] m_locked = 1; [2024-06-27 19:44:07,111 INFO L106 edCorrectnessWitness]: ghost_update [L1063-L1063] multithreaded = 1; [2024-06-27 19:44:07,111 INFO L106 edCorrectnessWitness]: ghost_update [L1008-L1008] m_locked = 1; [2024-06-27 19:44:07,112 INFO L106 edCorrectnessWitness]: ghost_update [L1029-L1029] m_locked = 0; [2024-06-27 19:44:07,112 INFO L106 edCorrectnessWitness]: ghost_update [L1020-L1020] m_locked = 1; [2024-06-27 19:44:07,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:44:07,450 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:44:07,457 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:44:07,553 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:44:07,614 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:44:07,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07 WrapperNode [2024-06-27 19:44:07,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:44:07,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:44:07,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:44:07,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:44:07,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,706 INFO L138 Inliner]: procedures = 274, calls = 248, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 996 [2024-06-27 19:44:07,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:44:07,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:44:07,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:44:07,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:44:07,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,760 INFO L175 MemorySlicer]: Split 235 memory accesses to 5 slices as follows [2, 8, 5, 4, 216]. 92 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 8, 5, 0, 0]. The 18 writes are split as follows [0, 0, 0, 3, 15]. [2024-06-27 19:44:07,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:44:07,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:44:07,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:44:07,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:44:07,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (1/1) ... [2024-06-27 19:44:07,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:44:07,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:44:07,838 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) [2024-06-27 19:44:07,856 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 [2024-06-27 19:44:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-06-27 19:44:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-06-27 19:44:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-06-27 19:44:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-06-27 19:44:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:44:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 19:44:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 19:44:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-06-27 19:44:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-06-27 19:44:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-06-27 19:44:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 19:44:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:44:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:44:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-27 19:44:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-06-27 19:44:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:44:07,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:44:07,878 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:44:08,039 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:44:08,041 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:44:08,805 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:44:08,806 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:44:10,332 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:44:10,332 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-06-27 19:44:10,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:44:10 BoogieIcfgContainer [2024-06-27 19:44:10,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:44:10,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:44:10,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:44:10,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:44:10,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:44:05" (1/4) ... [2024-06-27 19:44:10,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3453c27b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:44:10, skipping insertion in model container [2024-06-27 19:44:10,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:44:07" (2/4) ... [2024-06-27 19:44:10,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3453c27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:44:10, skipping insertion in model container [2024-06-27 19:44:10,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:44:07" (3/4) ... [2024-06-27 19:44:10,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3453c27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:44:10, skipping insertion in model container [2024-06-27 19:44:10,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:44:10" (4/4) ... [2024-06-27 19:44:10,340 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-06-27 19:44:10,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:44:10,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 19:44:10,355 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:44:10,400 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 19:44:10,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 44 transitions, 102 flow [2024-06-27 19:44:10,472 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2024-06-27 19:44:10,473 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 19:44:10,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 42 events. 5/42 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-06-27 19:44:10,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 44 transitions, 102 flow [2024-06-27 19:44:10,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 38 transitions, 85 flow [2024-06-27 19:44:10,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:44:10,488 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@2e4cb8b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:44:10,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 19:44:10,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:44:10,493 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 19:44:10,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:44:10,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:10,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-27 19:44:10,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:10,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:10,497 INFO L85 PathProgramCache]: Analyzing trace with hash -478153747, now seen corresponding path program 1 times [2024-06-27 19:44:10,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:10,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945182520] [2024-06-27 19:44:10,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945182520] [2024-06-27 19:44:11,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945182520] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:11,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:44:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844149776] [2024-06-27 19:44:11,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:11,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:44:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:44:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:44:11,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:11,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:44:11,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:11,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:11,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:11,699 INFO L124 PetriNetUnfolderBase]: 689/1154 cut-off events. [2024-06-27 19:44:11,700 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-06-27 19:44:11,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2293 conditions, 1154 events. 689/1154 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5101 event pairs, 201 based on Foata normal form. 29/1037 useless extension candidates. Maximal degree in co-relation 2226. Up to 1004 conditions per place. [2024-06-27 19:44:11,705 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 39 selfloop transitions, 3 changer transitions 4/50 dead transitions. [2024-06-27 19:44:11,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 50 transitions, 204 flow [2024-06-27 19:44:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:44:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:44:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-06-27 19:44:11,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2024-06-27 19:44:11,715 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 85 flow. Second operand 3 states and 67 transitions. [2024-06-27 19:44:11,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 50 transitions, 204 flow [2024-06-27 19:44:11,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 19:44:11,719 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 92 flow [2024-06-27 19:44:11,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-06-27 19:44:11,723 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-06-27 19:44:11,724 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 92 flow [2024-06-27 19:44:11,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:44:11,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:11,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:11,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:44:11,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:11,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1730815855, now seen corresponding path program 1 times [2024-06-27 19:44:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:11,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299019268] [2024-06-27 19:44:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299019268] [2024-06-27 19:44:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299019268] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:12,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:12,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:44:12,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329735939] [2024-06-27 19:44:12,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:12,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:44:12,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:12,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:44:12,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:44:12,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:12,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-06-27 19:44:12,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:12,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:12,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:12,489 INFO L124 PetriNetUnfolderBase]: 579/1028 cut-off events. [2024-06-27 19:44:12,491 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-06-27 19:44:12,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2195 conditions, 1028 events. 579/1028 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4588 event pairs, 96 based on Foata normal form. 40/1014 useless extension candidates. Maximal degree in co-relation 1561. Up to 660 conditions per place. [2024-06-27 19:44:12,497 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 55 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-06-27 19:44:12,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 64 transitions, 274 flow [2024-06-27 19:44:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:44:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:44:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-06-27 19:44:12,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48863636363636365 [2024-06-27 19:44:12,504 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 92 flow. Second operand 4 states and 86 transitions. [2024-06-27 19:44:12,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 64 transitions, 274 flow [2024-06-27 19:44:12,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:44:12,507 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 116 flow [2024-06-27 19:44:12,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-06-27 19:44:12,508 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-06-27 19:44:12,508 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 116 flow [2024-06-27 19:44:12,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-06-27 19:44:12,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:12,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:44:12,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:12,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:12,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1919297707, now seen corresponding path program 1 times [2024-06-27 19:44:12,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:12,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262281432] [2024-06-27 19:44:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262281432] [2024-06-27 19:44:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262281432] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:12,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:12,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:44:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141331777] [2024-06-27 19:44:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:44:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:44:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:44:12,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:12,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2024-06-27 19:44:12,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:12,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:12,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:13,086 INFO L124 PetriNetUnfolderBase]: 549/978 cut-off events. [2024-06-27 19:44:13,087 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-06-27 19:44:13,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 978 events. 549/978 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4354 event pairs, 224 based on Foata normal form. 15/939 useless extension candidates. Maximal degree in co-relation 1670. Up to 764 conditions per place. [2024-06-27 19:44:13,092 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 42 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-06-27 19:44:13,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 234 flow [2024-06-27 19:44:13,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:44:13,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:44:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-06-27 19:44:13,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-06-27 19:44:13,093 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 116 flow. Second operand 3 states and 60 transitions. [2024-06-27 19:44:13,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 234 flow [2024-06-27 19:44:13,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 225 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 19:44:13,095 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 118 flow [2024-06-27 19:44:13,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-06-27 19:44:13,096 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-06-27 19:44:13,096 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 118 flow [2024-06-27 19:44:13,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2024-06-27 19:44:13,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:13,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:13,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:44:13,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:13,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1634225766, now seen corresponding path program 1 times [2024-06-27 19:44:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:13,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901730374] [2024-06-27 19:44:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:13,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:13,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:13,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901730374] [2024-06-27 19:44:13,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901730374] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:13,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:13,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:44:13,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347265965] [2024-06-27 19:44:13,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:13,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:44:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:13,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:44:13,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:44:13,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:13,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-27 19:44:13,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:13,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:13,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:14,177 INFO L124 PetriNetUnfolderBase]: 629/1140 cut-off events. [2024-06-27 19:44:14,177 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-06-27 19:44:14,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 1140 events. 629/1140 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5236 event pairs, 79 based on Foata normal form. 25/1111 useless extension candidates. Maximal degree in co-relation 1961. Up to 625 conditions per place. [2024-06-27 19:44:14,183 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 67 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-06-27 19:44:14,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 78 transitions, 358 flow [2024-06-27 19:44:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:44:14,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:44:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-06-27 19:44:14,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4818181818181818 [2024-06-27 19:44:14,185 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 118 flow. Second operand 5 states and 106 transitions. [2024-06-27 19:44:14,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 78 transitions, 358 flow [2024-06-27 19:44:14,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 78 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:44:14,187 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 147 flow [2024-06-27 19:44:14,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-06-27 19:44:14,188 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-06-27 19:44:14,188 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 147 flow [2024-06-27 19:44:14,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-27 19:44:14,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:14,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:14,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:44:14,188 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:14,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash 903783463, now seen corresponding path program 1 times [2024-06-27 19:44:14,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:14,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738224955] [2024-06-27 19:44:14,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:14,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:14,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:14,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738224955] [2024-06-27 19:44:14,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738224955] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:14,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:14,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:44:14,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846186018] [2024-06-27 19:44:14,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:14,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:44:14,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:14,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:44:14,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:44:14,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:14,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-27 19:44:14,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:14,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:14,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:14,496 INFO L124 PetriNetUnfolderBase]: 479/922 cut-off events. [2024-06-27 19:44:14,496 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2024-06-27 19:44:14,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2226 conditions, 922 events. 479/922 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4218 event pairs, 157 based on Foata normal form. 52/936 useless extension candidates. Maximal degree in co-relation 1082. Up to 493 conditions per place. [2024-06-27 19:44:14,500 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 44 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-06-27 19:44:14,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 291 flow [2024-06-27 19:44:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:44:14,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:44:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-06-27 19:44:14,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49242424242424243 [2024-06-27 19:44:14,501 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 147 flow. Second operand 3 states and 65 transitions. [2024-06-27 19:44:14,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 291 flow [2024-06-27 19:44:14,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 274 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-06-27 19:44:14,504 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 142 flow [2024-06-27 19:44:14,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-06-27 19:44:14,504 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-06-27 19:44:14,505 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 142 flow [2024-06-27 19:44:14,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-27 19:44:14,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:14,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:14,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:44:14,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:14,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:14,506 INFO L85 PathProgramCache]: Analyzing trace with hash -698438510, now seen corresponding path program 1 times [2024-06-27 19:44:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:14,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131261360] [2024-06-27 19:44:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:15,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:15,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131261360] [2024-06-27 19:44:15,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131261360] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:15,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:15,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:44:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820444757] [2024-06-27 19:44:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:15,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:44:15,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:44:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:44:15,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:15,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-06-27 19:44:15,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:15,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:15,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:15,274 INFO L124 PetriNetUnfolderBase]: 497/965 cut-off events. [2024-06-27 19:44:15,275 INFO L125 PetriNetUnfolderBase]: For 772/772 co-relation queries the response was YES. [2024-06-27 19:44:15,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 965 events. 497/965 cut-off events. For 772/772 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4498 event pairs, 109 based on Foata normal form. 27/960 useless extension candidates. Maximal degree in co-relation 1285. Up to 439 conditions per place. [2024-06-27 19:44:15,279 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 52 selfloop transitions, 7 changer transitions 2/65 dead transitions. [2024-06-27 19:44:15,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 65 transitions, 342 flow [2024-06-27 19:44:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:44:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:44:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-06-27 19:44:15,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-06-27 19:44:15,281 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 142 flow. Second operand 4 states and 80 transitions. [2024-06-27 19:44:15,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 65 transitions, 342 flow [2024-06-27 19:44:15,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:44:15,284 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 172 flow [2024-06-27 19:44:15,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-06-27 19:44:15,287 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2024-06-27 19:44:15,287 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 172 flow [2024-06-27 19:44:15,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-06-27 19:44:15,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:15,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:15,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:44:15,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:15,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash -84429106, now seen corresponding path program 1 times [2024-06-27 19:44:15,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:15,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942214294] [2024-06-27 19:44:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:15,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:15,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942214294] [2024-06-27 19:44:15,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942214294] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:44:15,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:44:15,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:44:15,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994672301] [2024-06-27 19:44:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:44:15,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:44:15,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:44:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:44:15,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:15,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-06-27 19:44:15,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:15,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:15,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:15,999 INFO L124 PetriNetUnfolderBase]: 486/964 cut-off events. [2024-06-27 19:44:16,000 INFO L125 PetriNetUnfolderBase]: For 1073/1073 co-relation queries the response was YES. [2024-06-27 19:44:16,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 964 events. 486/964 cut-off events. For 1073/1073 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4467 event pairs, 141 based on Foata normal form. 18/982 useless extension candidates. Maximal degree in co-relation 1385. Up to 393 conditions per place. [2024-06-27 19:44:16,004 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 54 selfloop transitions, 6 changer transitions 1/65 dead transitions. [2024-06-27 19:44:16,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 65 transitions, 375 flow [2024-06-27 19:44:16,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:44:16,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:44:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-06-27 19:44:16,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4431818181818182 [2024-06-27 19:44:16,006 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 172 flow. Second operand 4 states and 78 transitions. [2024-06-27 19:44:16,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 65 transitions, 375 flow [2024-06-27 19:44:16,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 361 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 19:44:16,008 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 187 flow [2024-06-27 19:44:16,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-06-27 19:44:16,009 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2024-06-27 19:44:16,009 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 187 flow [2024-06-27 19:44:16,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-06-27 19:44:16,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:16,009 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:16,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:44:16,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:16,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:16,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1251348436, now seen corresponding path program 1 times [2024-06-27 19:44:16,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:16,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893234130] [2024-06-27 19:44:16,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:16,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:16,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893234130] [2024-06-27 19:44:16,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893234130] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:44:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331785145] [2024-06-27 19:44:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:16,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:44:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:44:16,684 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) [2024-06-27 19:44:16,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-27 19:44:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:16,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 26 conjunts are in the unsatisfiable core [2024-06-27 19:44:16,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:44:17,009 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 22 treesize of output 21 [2024-06-27 19:44:17,046 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 161 treesize of output 149 [2024-06-27 19:44:17,069 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 [2024-06-27 19:44:17,231 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 [2024-06-27 19:44:17,274 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 96 treesize of output 79 [2024-06-27 19:44:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:17,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:44:18,183 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 7 treesize of output 3 [2024-06-27 19:44:18,188 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 7 treesize of output 3 [2024-06-27 19:44:18,199 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 9 treesize of output 5 [2024-06-27 19:44:18,328 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 8 treesize of output 4 [2024-06-27 19:44:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:18,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331785145] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:44:18,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:44:18,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2024-06-27 19:44:18,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941063649] [2024-06-27 19:44:18,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:44:18,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-27 19:44:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:44:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-27 19:44:18,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-06-27 19:44:18,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:44:18,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 187 flow. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 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) [2024-06-27 19:44:18,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:44:18,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:44:18,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:44:19,012 INFO L124 PetriNetUnfolderBase]: 751/1494 cut-off events. [2024-06-27 19:44:19,012 INFO L125 PetriNetUnfolderBase]: For 3195/3195 co-relation queries the response was YES. [2024-06-27 19:44:19,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 1494 events. 751/1494 cut-off events. For 3195/3195 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7210 event pairs, 126 based on Foata normal form. 98/1592 useless extension candidates. Maximal degree in co-relation 1667. Up to 291 conditions per place. [2024-06-27 19:44:19,019 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 85 selfloop transitions, 15 changer transitions 12/116 dead transitions. [2024-06-27 19:44:19,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 116 transitions, 669 flow [2024-06-27 19:44:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 19:44:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 19:44:19,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-06-27 19:44:19,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41919191919191917 [2024-06-27 19:44:19,020 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 187 flow. Second operand 9 states and 166 transitions. [2024-06-27 19:44:19,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 116 transitions, 669 flow [2024-06-27 19:44:19,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 116 transitions, 631 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-06-27 19:44:19,023 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 284 flow [2024-06-27 19:44:19,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=284, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-06-27 19:44:19,024 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2024-06-27 19:44:19,024 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 284 flow [2024-06-27 19:44:19,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 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) [2024-06-27 19:44:19,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:44:19,025 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:44:19,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-27 19:44:19,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:44:19,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:44:19,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:44:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash -119287050, now seen corresponding path program 1 times [2024-06-27 19:44:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:44:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296450684] [2024-06-27 19:44:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:19,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:44:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:20,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:44:20,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296450684] [2024-06-27 19:44:20,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296450684] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:44:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427028994] [2024-06-27 19:44:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:44:20,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:44:20,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:44:20,605 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) [2024-06-27 19:44:20,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-27 19:44:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:44:20,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 31 conjunts are in the unsatisfiable core [2024-06-27 19:44:20,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:44:20,919 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 22 treesize of output 21 [2024-06-27 19:44:21,044 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 210 treesize of output 194 [2024-06-27 19:44:21,080 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 77 treesize of output 64 [2024-06-27 19:44:21,156 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 178 [2024-06-27 19:44:21,434 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 [2024-06-27 19:44:21,439 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 168 treesize of output 154 [2024-06-27 19:44:21,450 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 [2024-06-27 19:44:21,463 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 [2024-06-27 19:44:21,588 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 239 treesize of output 213 [2024-06-27 19:44:21,608 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 156 treesize of output 126 [2024-06-27 19:44:21,881 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 262 treesize of output 238 [2024-06-27 19:44:21,892 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-06-27 19:44:21,898 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 72 treesize of output 55 [2024-06-27 19:44:21,915 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 [2024-06-27 19:44:21,921 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-06-27 19:44:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:44:21,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:44:22,125 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 7 treesize of output 3 [2024-06-27 19:44:22,959 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 9 treesize of output 1 [2024-06-27 19:44:23,026 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 23 treesize of output 7 [2024-06-27 19:44:23,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:44:23,237 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 71 treesize of output 59 [2024-06-27 19:44:34,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:44:34,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 20852 treesize of output 11582 [2024-06-27 19:44:55,399 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 239 treesize of output 223 [2024-06-27 19:44:55,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:44:55,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 11706 treesize of output 9610 [2024-06-27 19:45:05,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:45:05,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427028994] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:45:05,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:45:05,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 22 [2024-06-27 19:45:05,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139229237] [2024-06-27 19:45:05,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:45:05,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-06-27 19:45:05,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:45:05,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-06-27 19:45:05,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=384, Unknown=1, NotChecked=0, Total=552 [2024-06-27 19:45:05,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-06-27 19:45:05,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 284 flow. Second operand has 24 states, 24 states have (on average 9.75) internal successors, (234), 24 states have internal predecessors, (234), 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) [2024-06-27 19:45:05,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:45:05,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-06-27 19:45:05,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:45:10,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-06-27 19:45:19,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:23,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:27,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:30,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:34,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:38,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-06-27 19:45:38,777 INFO L124 PetriNetUnfolderBase]: 2383/4662 cut-off events. [2024-06-27 19:45:38,777 INFO L125 PetriNetUnfolderBase]: For 14888/14888 co-relation queries the response was YES. [2024-06-27 19:45:38,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12365 conditions, 4662 events. 2383/4662 cut-off events. For 14888/14888 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 25979 event pairs, 321 based on Foata normal form. 147/4809 useless extension candidates. Maximal degree in co-relation 9314. Up to 852 conditions per place. [2024-06-27 19:45:38,794 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 133 selfloop transitions, 51 changer transitions 25/213 dead transitions. [2024-06-27 19:45:38,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 213 transitions, 1573 flow [2024-06-27 19:45:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-06-27 19:45:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-06-27 19:45:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 275 transitions. [2024-06-27 19:45:38,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.390625 [2024-06-27 19:45:38,796 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 284 flow. Second operand 16 states and 275 transitions. [2024-06-27 19:45:38,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 213 transitions, 1573 flow [2024-06-27 19:45:38,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 213 transitions, 1529 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-06-27 19:45:38,803 INFO L231 Difference]: Finished difference. Result has 78 places, 94 transitions, 1038 flow [2024-06-27 19:45:38,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1038, PETRI_PLACES=78, PETRI_TRANSITIONS=94} [2024-06-27 19:45:38,804 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 37 predicate places. [2024-06-27 19:45:38,804 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 94 transitions, 1038 flow [2024-06-27 19:45:38,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.75) internal successors, (234), 24 states have internal predecessors, (234), 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) [2024-06-27 19:45:38,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:45:38,805 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:45:38,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-27 19:45:39,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-06-27 19:45:39,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:45:39,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:45:39,018 INFO L85 PathProgramCache]: Analyzing trace with hash -217550397, now seen corresponding path program 2 times [2024-06-27 19:45:39,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:45:39,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582632420] [2024-06-27 19:45:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:45:39,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:45:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:45:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-06-27 19:45:43,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:45:43,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582632420] [2024-06-27 19:45:43,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582632420] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:45:43,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065810174] [2024-06-27 19:45:43,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-27 19:45:43,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:45:43,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:45:43,224 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) [2024-06-27 19:45:43,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-27 19:45:43,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-06-27 19:45:43,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-27 19:45:43,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 58 conjunts are in the unsatisfiable core [2024-06-27 19:45:43,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:45:43,700 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 [2024-06-27 19:45:43,867 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 106 treesize of output 98 [2024-06-27 19:45:43,882 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 [2024-06-27 19:45:43,974 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 128 treesize of output 114 [2024-06-27 19:45:43,980 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 [2024-06-27 19:45:43,991 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 [2024-06-27 19:45:44,005 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 [2024-06-27 19:45:44,138 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 111 treesize of output 101 [2024-06-27 19:45:44,151 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 [2024-06-27 19:45:44,406 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 163 treesize of output 141 [2024-06-27 19:45:44,446 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 68 treesize of output 51 [2024-06-27 19:45:44,450 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 21 treesize of output 9 [2024-06-27 19:45:44,635 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 151 treesize of output 131 [2024-06-27 19:45:45,479 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 154 treesize of output 134 [2024-06-27 19:45:45,514 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 68 treesize of output 51 [2024-06-27 19:45:45,520 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 10 treesize of output 4 [2024-06-27 19:45:45,524 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 10 treesize of output 4 [2024-06-27 19:45:45,683 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 237 treesize of output 199 [2024-06-27 19:45:45,706 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 176 treesize of output 142 [2024-06-27 19:45:46,008 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 264 treesize of output 228 [2024-06-27 19:45:46,022 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 72 treesize of output 55 [2024-06-27 19:45:46,030 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 [2024-06-27 19:45:46,053 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-06-27 19:45:46,095 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 [2024-06-27 19:45:46,100 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-06-27 19:45:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-06-27 19:45:46,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:45:46,338 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 9 treesize of output 5 [2024-06-27 19:45:46,367 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 7 treesize of output 3 [2024-06-27 19:45:46,374 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 9 treesize of output 5 [2024-06-27 19:45:46,393 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 7 treesize of output 3 [2024-06-27 19:45:47,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:45:47,533 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 76 [2024-06-27 19:45:47,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:45:47,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 42 [2024-06-27 19:45:47,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:45:47,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 40 [2024-06-27 19:45:47,716 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-06-27 19:45:47,717 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 38 treesize of output 22 [2024-06-27 19:45:47,817 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-06-27 19:45:47,818 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 43 treesize of output 23 [2024-06-27 19:45:50,560 INFO L349 Elim1Store]: treesize reduction 11, result has 47.6 percent of original size [2024-06-27 19:45:50,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 109 [2024-06-27 19:45:54,152 INFO L349 Elim1Store]: treesize reduction 10, result has 67.7 percent of original size [2024-06-27 19:45:54,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 393 treesize of output 241 [2024-06-27 19:46:03,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:46:03,821 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 76 [2024-06-27 19:46:22,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:46:22,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 75 case distinctions, treesize of input 51064 treesize of output 49618 [2024-06-27 19:47:00,981 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 9 treesize of output 1 [2024-06-27 19:47:03,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-06-27 19:47:03,974 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:03,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-06-27 19:47:04,107 INFO L349 Elim1Store]: treesize reduction 44, result has 61.7 percent of original size [2024-06-27 19:47:04,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 912 treesize of output 556 [2024-06-27 19:47:04,168 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:04,251 INFO L349 Elim1Store]: treesize reduction 54, result has 53.0 percent of original size [2024-06-27 19:47:04,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 13555 treesize of output 8709 [2024-06-27 19:47:04,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:04,447 INFO L349 Elim1Store]: treesize reduction 114, result has 0.9 percent of original size [2024-06-27 19:47:04,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 25251 treesize of output 15429 [2024-06-27 19:47:04,555 INFO L349 Elim1Store]: treesize reduction 114, result has 0.9 percent of original size [2024-06-27 19:47:04,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 626 treesize of output 340 [2024-06-27 19:47:04,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:04,656 INFO L349 Elim1Store]: treesize reduction 18, result has 73.9 percent of original size [2024-06-27 19:47:04,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 3203 treesize of output 1862 [2024-06-27 19:47:04,721 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:04,819 INFO L349 Elim1Store]: treesize reduction 44, result has 61.7 percent of original size [2024-06-27 19:47:04,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 2319 treesize of output 1433 [2024-06-27 19:47:05,128 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:05,225 INFO L349 Elim1Store]: treesize reduction 44, result has 61.7 percent of original size [2024-06-27 19:47:05,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 9225 treesize of output 5641 [2024-06-27 19:47:05,508 INFO L349 Elim1Store]: treesize reduction 54, result has 53.0 percent of original size [2024-06-27 19:47:05,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 908 treesize of output 548 [2024-06-27 19:47:05,777 INFO L349 Elim1Store]: treesize reduction 18, result has 84.6 percent of original size [2024-06-27 19:47:05,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 18575 treesize of output 10718 [2024-06-27 19:47:06,792 INFO L349 Elim1Store]: treesize reduction 44, result has 86.1 percent of original size [2024-06-27 19:47:06,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 33 case distinctions, treesize of input 3433462 treesize of output 1967623 [2024-06-27 19:47:10,855 INFO L349 Elim1Store]: treesize reduction 44, result has 86.1 percent of original size [2024-06-27 19:47:10,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 33 case distinctions, treesize of input 599615 treesize of output 349292 [2024-06-27 19:47:12,417 INFO L349 Elim1Store]: treesize reduction 114, result has 63.9 percent of original size [2024-06-27 19:47:12,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 33 case distinctions, treesize of input 1108687 treesize of output 632998 [2024-06-27 19:47:14,659 INFO L349 Elim1Store]: treesize reduction 54, result has 82.9 percent of original size [2024-06-27 19:47:14,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 33 case distinctions, treesize of input 5374765 treesize of output 2963220 [2024-06-27 19:47:19,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 37 [2024-06-27 19:47:19,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:47:19,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 3471196 treesize of output 1977540 [2024-06-27 19:47:22,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:47:22,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 27923 treesize of output 16351 [2024-06-27 19:47:22,643 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 8 treesize of output 4 [2024-06-27 19:47:22,669 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:22,693 INFO L349 Elim1Store]: treesize reduction 114, result has 0.9 percent of original size [2024-06-27 19:47:22,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 74147 treesize of output 46021 [2024-06-27 19:47:22,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:22,865 INFO L349 Elim1Store]: treesize reduction 44, result has 61.7 percent of original size [2024-06-27 19:47:22,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 4661 treesize of output 2793 [2024-06-27 19:47:23,078 INFO L173 IndexEqualityManager]: detected equality via solver [2024-06-27 19:47:23,152 INFO L349 Elim1Store]: treesize reduction 54, result has 53.0 percent of original size [2024-06-27 19:47:23,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 6915 treesize of output 4357 [2024-06-27 19:47:23,493 INFO L349 Elim1Store]: treesize reduction 24, result has 79.1 percent of original size [2024-06-27 19:47:23,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 11363 treesize of output 6435 [2024-06-27 19:47:25,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-27 19:47:25,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 6 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 99 case distinctions, treesize of input 42724 treesize of output 42083 [2024-06-27 19:48:56,647 INFO L349 Elim1Store]: treesize reduction 18, result has 92.3 percent of original size [2024-06-27 19:48:56,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 364708 treesize of output 198071 [2024-06-27 19:56:25,236 WARN L293 SmtUtils]: Spent 7.42m on a formula simplification. DAG size of input: 3024 DAG size of output: 3012 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-06-27 19:56:25,237 INFO L349 Elim1Store]: treesize reduction 24, result has 99.6 percent of original size [2024-06-27 19:56:25,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 39 select indices, 39 select index equivalence classes, 6 disjoint index pairs (out of 741 index pairs), introduced 42 new quantified variables, introduced 735 case distinctions, treesize of input 19996929 treesize of output 11305700 [2024-06-27 19:57:44,507 WARN L293 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 21685 DAG size of output: 3566 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-27 19:57:49,829 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 3465 DAG size of output: 3465 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-27 19:57:49,922 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 7 treesize of output 3 Killed by 15