./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-three-array-sum.wvr.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/weaver/popl20-three-array-sum.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-three-array-sum.wvr.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:08:58,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:08:58,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:08:58,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:08:58,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:08:58,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:08:58,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:08:58,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:08:58,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:08:58,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:08:58,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:08:58,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:08:58,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:08:58,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:08:58,183 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:08:58,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:08:58,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:08:58,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:08:58,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:08:58,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:08:58,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:08:58,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:08:58,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:08:58,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:08:58,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:08:58,186 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:08:58,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:08:58,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:08:58,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:08:58,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:08:58,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:08:58,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:08:58,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:08:58,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:08:58,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:08:58,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:08:58,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:08:58,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:08:58,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:08:58,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:08:58,192 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:08:58,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:08:58,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:08:58,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:08:58,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:08:58,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:08:58,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:08:58,466 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:08:58,466 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:08:58,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-three-array-sum.wvr.yml/witness.yml [2024-06-28 01:08:58,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:08:58,543 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:08:58,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-28 01:08:59,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:08:59,935 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:08:59,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-06-28 01:08:59,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50200219d/ae06b9b49eb74c10838570fba1b42f30/FLAG88ff403e8 [2024-06-28 01:08:59,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50200219d/ae06b9b49eb74c10838570fba1b42f30 [2024-06-28 01:08:59,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:08:59,954 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:08:59,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:08:59,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:08:59,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:08:59,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:08:58" (1/2) ... [2024-06-28 01:08:59,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbc622d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:08:59, skipping insertion in model container [2024-06-28 01:08:59,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:08:58" (1/2) ... [2024-06-28 01:08:59,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2240e9db and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:08:59, skipping insertion in model container [2024-06-28 01:08:59,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:08:59" (2/2) ... [2024-06-28 01:08:59,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbc622d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:08:59, skipping insertion in model container [2024-06-28 01:08:59,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:08:59" (2/2) ... [2024-06-28 01:08:59,967 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:08:59,982 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:08:59,983 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 01:08:59,983 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 01:08:59,983 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] (! multithreaded || 0 <= p) && (! multithreaded || 0 <= p) [2024-06-28 01:08:59,983 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:08:59,984 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-06-28 01:09:00,004 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:09:00,200 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-06-28 01:09:00,208 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:09:00,215 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:09:00,269 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-06-28 01:09:00,273 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:09:00,293 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:09:00,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00 WrapperNode [2024-06-28 01:09:00,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:09:00,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:09:00,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:09:00,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:09:00,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,361 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 144 [2024-06-28 01:09:00,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:09:00,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:09:00,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:09:00,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:09:00,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,396 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,418 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-06-28 01:09:00,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:09:00,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:09:00,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:09:00,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:09:00,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (1/1) ... [2024-06-28 01:09:00,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:09:00,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:00,491 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) [2024-06-28 01:09:00,500 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 [2024-06-28 01:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-28 01:09:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-28 01:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-28 01:09:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-28 01:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-28 01:09:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-28 01:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-28 01:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-28 01:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 01:09:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 01:09:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-28 01:09:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:09:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:09:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-28 01:09:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-28 01:09:00,536 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:09:00,623 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:09:00,624 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:09:00,893 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:09:00,893 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:09:01,251 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:09:01,251 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-28 01:09:01,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:09:01 BoogieIcfgContainer [2024-06-28 01:09:01,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:09:01,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:09:01,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:09:01,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:09:01,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:08:58" (1/4) ... [2024-06-28 01:09:01,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7682f386 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:09:01, skipping insertion in model container [2024-06-28 01:09:01,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:08:59" (2/4) ... [2024-06-28 01:09:01,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7682f386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:09:01, skipping insertion in model container [2024-06-28 01:09:01,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:09:00" (3/4) ... [2024-06-28 01:09:01,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7682f386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:09:01, skipping insertion in model container [2024-06-28 01:09:01,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:09:01" (4/4) ... [2024-06-28 01:09:01,264 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-06-28 01:09:01,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:09:01,283 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-28 01:09:01,283 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:09:01,346 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-28 01:09:01,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 113 flow [2024-06-28 01:09:01,414 INFO L124 PetriNetUnfolderBase]: 7/43 cut-off events. [2024-06-28 01:09:01,417 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-28 01:09:01,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 43 events. 7/43 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-06-28 01:09:01,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 46 transitions, 113 flow [2024-06-28 01:09:01,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 42 transitions, 102 flow [2024-06-28 01:09:01,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:09:01,438 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;@6490c949, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:09:01,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-06-28 01:09:01,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:09:01,448 INFO L124 PetriNetUnfolderBase]: 4/12 cut-off events. [2024-06-28 01:09:01,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:09:01,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:01,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:01,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:01,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:01,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1768431740, now seen corresponding path program 1 times [2024-06-28 01:09:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:01,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332390680] [2024-06-28 01:09:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:01,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:01,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332390680] [2024-06-28 01:09:01,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332390680] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:01,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:01,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:09:01,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557882128] [2024-06-28 01:09:01,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:01,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:09:01,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:01,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:09:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:09:01,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-06-28 01:09:01,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-28 01:09:01,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:01,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-06-28 01:09:01,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:02,208 INFO L124 PetriNetUnfolderBase]: 753/1199 cut-off events. [2024-06-28 01:09:02,209 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-06-28 01:09:02,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 1199 events. 753/1199 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5162 event pairs, 237 based on Foata normal form. 45/1103 useless extension candidates. Maximal degree in co-relation 2061. Up to 671 conditions per place. [2024-06-28 01:09:02,228 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 47 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-06-28 01:09:02,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 58 transitions, 244 flow [2024-06-28 01:09:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:09:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:09:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-06-28 01:09:02,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6376811594202898 [2024-06-28 01:09:02,240 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 102 flow. Second operand 3 states and 88 transitions. [2024-06-28 01:09:02,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 58 transitions, 244 flow [2024-06-28 01:09:02,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 224 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-28 01:09:02,248 INFO L231 Difference]: Finished difference. Result has 41 places, 42 transitions, 102 flow [2024-06-28 01:09:02,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=42} [2024-06-28 01:09:02,256 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places. [2024-06-28 01:09:02,256 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 102 flow [2024-06-28 01:09:02,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-28 01:09:02,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:02,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:02,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:09:02,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:02,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash 481454725, now seen corresponding path program 1 times [2024-06-28 01:09:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:02,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653635104] [2024-06-28 01:09:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:02,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:02,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:02,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653635104] [2024-06-28 01:09:02,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653635104] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:02,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:02,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:09:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18567892] [2024-06-28 01:09:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:02,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:09:02,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:02,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:09:02,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:09:02,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-06-28 01:09:02,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-06-28 01:09:02,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:02,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-06-28 01:09:02,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:02,734 INFO L124 PetriNetUnfolderBase]: 1063/1727 cut-off events. [2024-06-28 01:09:02,734 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-06-28 01:09:02,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 1727 events. 1063/1727 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8243 event pairs, 435 based on Foata normal form. 54/1598 useless extension candidates. Maximal degree in co-relation 909. Up to 926 conditions per place. [2024-06-28 01:09:02,749 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 71 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2024-06-28 01:09:02,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 85 transitions, 350 flow [2024-06-28 01:09:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:09:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:09:02,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-06-28 01:09:02,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2024-06-28 01:09:02,756 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 102 flow. Second operand 5 states and 140 transitions. [2024-06-28 01:09:02,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 85 transitions, 350 flow [2024-06-28 01:09:02,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 85 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:09:02,763 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 139 flow [2024-06-28 01:09:02,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2024-06-28 01:09:02,765 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-06-28 01:09:02,765 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 139 flow [2024-06-28 01:09:02,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-06-28 01:09:02,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:02,771 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:02,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:09:02,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:02,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:02,775 INFO L85 PathProgramCache]: Analyzing trace with hash 944556155, now seen corresponding path program 1 times [2024-06-28 01:09:02,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:02,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106753516] [2024-06-28 01:09:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:02,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:02,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-28 01:09:02,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:02,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106753516] [2024-06-28 01:09:02,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106753516] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:02,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:02,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:09:02,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602873608] [2024-06-28 01:09:02,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:02,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:09:02,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:09:02,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:09:02,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-06-28 01:09:02,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-06-28 01:09:02,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:02,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-06-28 01:09:02,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:03,295 INFO L124 PetriNetUnfolderBase]: 1555/2447 cut-off events. [2024-06-28 01:09:03,295 INFO L125 PetriNetUnfolderBase]: For 936/975 co-relation queries the response was YES. [2024-06-28 01:09:03,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5632 conditions, 2447 events. 1555/2447 cut-off events. For 936/975 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 11329 event pairs, 1062 based on Foata normal form. 44/2217 useless extension candidates. Maximal degree in co-relation 2727. Up to 1755 conditions per place. [2024-06-28 01:09:03,317 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 67 selfloop transitions, 15 changer transitions 0/92 dead transitions. [2024-06-28 01:09:03,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 92 transitions, 411 flow [2024-06-28 01:09:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:09:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:09:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions. [2024-06-28 01:09:03,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5905797101449275 [2024-06-28 01:09:03,322 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 139 flow. Second operand 6 states and 163 transitions. [2024-06-28 01:09:03,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 92 transitions, 411 flow [2024-06-28 01:09:03,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 402 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:03,332 INFO L231 Difference]: Finished difference. Result has 54 places, 58 transitions, 238 flow [2024-06-28 01:09:03,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=238, PETRI_PLACES=54, PETRI_TRANSITIONS=58} [2024-06-28 01:09:03,333 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-06-28 01:09:03,334 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 238 flow [2024-06-28 01:09:03,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-06-28 01:09:03,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:03,334 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:03,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:09:03,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:03,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:03,336 INFO L85 PathProgramCache]: Analyzing trace with hash -432744480, now seen corresponding path program 1 times [2024-06-28 01:09:03,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:03,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872346080] [2024-06-28 01:09:03,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:03,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:03,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:03,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872346080] [2024-06-28 01:09:03,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872346080] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:03,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856460900] [2024-06-28 01:09:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:03,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:03,454 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) [2024-06-28 01:09:03,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-28 01:09:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:03,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-28 01:09:03,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:09:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-28 01:09:03,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:09:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-28 01:09:03,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856460900] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 01:09:03,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 01:09:03,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-28 01:09:03,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212534981] [2024-06-28 01:09:03,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 01:09:03,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-28 01:09:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:03,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-28 01:09:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-28 01:09:03,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 46 [2024-06-28 01:09:03,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 238 flow. Second operand has 14 states, 14 states have (on average 14.285714285714286) internal successors, (200), 14 states have internal predecessors, (200), 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) [2024-06-28 01:09:03,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:03,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 46 [2024-06-28 01:09:03,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:04,568 INFO L124 PetriNetUnfolderBase]: 2109/3253 cut-off events. [2024-06-28 01:09:04,569 INFO L125 PetriNetUnfolderBase]: For 1361/1361 co-relation queries the response was YES. [2024-06-28 01:09:04,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7934 conditions, 3253 events. 2109/3253 cut-off events. For 1361/1361 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15588 event pairs, 446 based on Foata normal form. 116/3017 useless extension candidates. Maximal degree in co-relation 4615. Up to 713 conditions per place. [2024-06-28 01:09:04,592 INFO L140 encePairwiseOnDemand]: 32/46 looper letters, 130 selfloop transitions, 40 changer transitions 0/178 dead transitions. [2024-06-28 01:09:04,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 178 transitions, 921 flow [2024-06-28 01:09:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-28 01:09:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-28 01:09:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 310 transitions. [2024-06-28 01:09:04,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183946488294314 [2024-06-28 01:09:04,594 INFO L175 Difference]: Start difference. First operand has 54 places, 58 transitions, 238 flow. Second operand 13 states and 310 transitions. [2024-06-28 01:09:04,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 178 transitions, 921 flow [2024-06-28 01:09:04,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 178 transitions, 921 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-28 01:09:04,606 INFO L231 Difference]: Finished difference. Result has 68 places, 77 transitions, 463 flow [2024-06-28 01:09:04,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=463, PETRI_PLACES=68, PETRI_TRANSITIONS=77} [2024-06-28 01:09:04,608 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2024-06-28 01:09:04,609 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 77 transitions, 463 flow [2024-06-28 01:09:04,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.285714285714286) internal successors, (200), 14 states have internal predecessors, (200), 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) [2024-06-28 01:09:04,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:04,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:04,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-28 01:09:04,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:04,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:04,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 418821347, now seen corresponding path program 1 times [2024-06-28 01:09:04,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:04,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63536814] [2024-06-28 01:09:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:04,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:05,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:05,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63536814] [2024-06-28 01:09:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63536814] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:05,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:05,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:09:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124081891] [2024-06-28 01:09:05,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:05,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:09:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:09:05,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:09:05,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-06-28 01:09:05,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 77 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-28 01:09:05,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:05,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-06-28 01:09:05,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:05,600 INFO L124 PetriNetUnfolderBase]: 2736/4346 cut-off events. [2024-06-28 01:09:05,600 INFO L125 PetriNetUnfolderBase]: For 4979/5037 co-relation queries the response was YES. [2024-06-28 01:09:05,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11651 conditions, 4346 events. 2736/4346 cut-off events. For 4979/5037 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 22845 event pairs, 864 based on Foata normal form. 5/3827 useless extension candidates. Maximal degree in co-relation 6812. Up to 2364 conditions per place. [2024-06-28 01:09:05,638 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 95 selfloop transitions, 3 changer transitions 1/108 dead transitions. [2024-06-28 01:09:05,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 108 transitions, 809 flow [2024-06-28 01:09:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:09:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:09:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-06-28 01:09:05,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2024-06-28 01:09:05,640 INFO L175 Difference]: Start difference. First operand has 68 places, 77 transitions, 463 flow. Second operand 3 states and 96 transitions. [2024-06-28 01:09:05,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 108 transitions, 809 flow [2024-06-28 01:09:05,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 747 flow, removed 21 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:05,653 INFO L231 Difference]: Finished difference. Result has 69 places, 79 transitions, 438 flow [2024-06-28 01:09:05,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=69, PETRI_TRANSITIONS=79} [2024-06-28 01:09:05,655 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2024-06-28 01:09:05,656 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 79 transitions, 438 flow [2024-06-28 01:09:05,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-28 01:09:05,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:05,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:05,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:09:05,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:05,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1007305353, now seen corresponding path program 1 times [2024-06-28 01:09:05,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:05,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362040518] [2024-06-28 01:09:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:05,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:05,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:05,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362040518] [2024-06-28 01:09:05,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362040518] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:05,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:05,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:09:05,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663520743] [2024-06-28 01:09:05,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:05,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:09:05,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:09:05,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:09:05,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-06-28 01:09:05,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 79 transitions, 438 flow. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2024-06-28 01:09:05,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:05,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-06-28 01:09:05,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:06,287 INFO L124 PetriNetUnfolderBase]: 2570/4319 cut-off events. [2024-06-28 01:09:06,287 INFO L125 PetriNetUnfolderBase]: For 4129/4200 co-relation queries the response was YES. [2024-06-28 01:09:06,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11470 conditions, 4319 events. 2570/4319 cut-off events. For 4129/4200 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 24535 event pairs, 1857 based on Foata normal form. 48/4216 useless extension candidates. Maximal degree in co-relation 6492. Up to 3176 conditions per place. [2024-06-28 01:09:06,314 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 85 selfloop transitions, 24 changer transitions 0/118 dead transitions. [2024-06-28 01:09:06,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 118 transitions, 801 flow [2024-06-28 01:09:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:09:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:09:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2024-06-28 01:09:06,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2024-06-28 01:09:06,316 INFO L175 Difference]: Start difference. First operand has 69 places, 79 transitions, 438 flow. Second operand 6 states and 168 transitions. [2024-06-28 01:09:06,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 118 transitions, 801 flow [2024-06-28 01:09:06,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 118 transitions, 796 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:09:06,327 INFO L231 Difference]: Finished difference. Result has 75 places, 81 transitions, 506 flow [2024-06-28 01:09:06,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=75, PETRI_TRANSITIONS=81} [2024-06-28 01:09:06,328 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 30 predicate places. [2024-06-28 01:09:06,328 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 81 transitions, 506 flow [2024-06-28 01:09:06,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2024-06-28 01:09:06,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:06,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:06,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:09:06,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:06,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash -438158522, now seen corresponding path program 1 times [2024-06-28 01:09:06,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:06,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448345720] [2024-06-28 01:09:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:06,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:06,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448345720] [2024-06-28 01:09:06,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448345720] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083318993] [2024-06-28 01:09:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:06,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:06,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:06,454 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) [2024-06-28 01:09:06,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-28 01:09:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:06,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2024-06-28 01:09:06,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:09:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:06,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:09:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:06,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083318993] provided 1 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:06,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-06-28 01:09:06,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-06-28 01:09:06,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665918049] [2024-06-28 01:09:06,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:06,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:09:06,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:06,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:09:06,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:09:06,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-06-28 01:09:06,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 81 transitions, 506 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-06-28 01:09:06,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:06,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-06-28 01:09:06,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:07,250 INFO L124 PetriNetUnfolderBase]: 3099/4946 cut-off events. [2024-06-28 01:09:07,250 INFO L125 PetriNetUnfolderBase]: For 4939/4939 co-relation queries the response was YES. [2024-06-28 01:09:07,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14364 conditions, 4946 events. 3099/4946 cut-off events. For 4939/4939 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26928 event pairs, 1241 based on Foata normal form. 185/4957 useless extension candidates. Maximal degree in co-relation 8087. Up to 2181 conditions per place. [2024-06-28 01:09:07,286 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 86 selfloop transitions, 9 changer transitions 15/118 dead transitions. [2024-06-28 01:09:07,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 118 transitions, 866 flow [2024-06-28 01:09:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:09:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:09:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-06-28 01:09:07,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6130434782608696 [2024-06-28 01:09:07,288 INFO L175 Difference]: Start difference. First operand has 75 places, 81 transitions, 506 flow. Second operand 5 states and 141 transitions. [2024-06-28 01:09:07,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 118 transitions, 866 flow [2024-06-28 01:09:07,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 118 transitions, 827 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:09:07,307 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 417 flow [2024-06-28 01:09:07,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2024-06-28 01:09:07,308 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 33 predicate places. [2024-06-28 01:09:07,308 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 417 flow [2024-06-28 01:09:07,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-06-28 01:09:07,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:07,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:07,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-06-28 01:09:07,527 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,SelfDestructingSolverStorable6 [2024-06-28 01:09:07,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:07,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1676632018, now seen corresponding path program 1 times [2024-06-28 01:09:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:07,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882721705] [2024-06-28 01:09:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:09:07,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:07,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882721705] [2024-06-28 01:09:07,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882721705] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:09:07,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:09:07,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:09:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695466517] [2024-06-28 01:09:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:07,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:09:07,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:07,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:09:07,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:09:07,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-06-28 01:09:07,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 417 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-06-28 01:09:07,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:07,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-06-28 01:09:07,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:08,258 INFO L124 PetriNetUnfolderBase]: 2612/4432 cut-off events. [2024-06-28 01:09:08,258 INFO L125 PetriNetUnfolderBase]: For 7671/7671 co-relation queries the response was YES. [2024-06-28 01:09:08,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13306 conditions, 4432 events. 2612/4432 cut-off events. For 7671/7671 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 25595 event pairs, 1927 based on Foata normal form. 0/4101 useless extension candidates. Maximal degree in co-relation 8602. Up to 3433 conditions per place. [2024-06-28 01:09:08,285 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 44 selfloop transitions, 12 changer transitions 27/92 dead transitions. [2024-06-28 01:09:08,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 92 transitions, 657 flow [2024-06-28 01:09:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:09:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:09:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-06-28 01:09:08,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5289855072463768 [2024-06-28 01:09:08,287 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 417 flow. Second operand 6 states and 146 transitions. [2024-06-28 01:09:08,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 92 transitions, 657 flow [2024-06-28 01:09:08,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 92 transitions, 617 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-06-28 01:09:08,300 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 361 flow [2024-06-28 01:09:08,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=361, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2024-06-28 01:09:08,301 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 35 predicate places. [2024-06-28 01:09:08,301 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 361 flow [2024-06-28 01:09:08,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-06-28 01:09:08,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:08,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:08,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:09:08,302 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:08,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1261372728, now seen corresponding path program 1 times [2024-06-28 01:09:08,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:08,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303138204] [2024-06-28 01:09:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:08,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:08,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:08,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303138204] [2024-06-28 01:09:08,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303138204] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:08,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702690845] [2024-06-28 01:09:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:08,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:08,475 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) [2024-06-28 01:09:08,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-28 01:09:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:08,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2024-06-28 01:09:08,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:09:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:08,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:09:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:08,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702690845] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 01:09:08,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 01:09:08,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-06-28 01:09:08,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96175161] [2024-06-28 01:09:08,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 01:09:08,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:09:08,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:08,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:09:08,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:09:08,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-06-28 01:09:08,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 361 flow. Second operand has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 9 states have internal predecessors, (168), 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) [2024-06-28 01:09:08,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:08,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-06-28 01:09:08,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:09,239 INFO L124 PetriNetUnfolderBase]: 2870/5130 cut-off events. [2024-06-28 01:09:09,240 INFO L125 PetriNetUnfolderBase]: For 5827/5827 co-relation queries the response was YES. [2024-06-28 01:09:09,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 5130 events. 2870/5130 cut-off events. For 5827/5827 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 32484 event pairs, 886 based on Foata normal form. 256/5077 useless extension candidates. Maximal degree in co-relation 8663. Up to 1729 conditions per place. [2024-06-28 01:09:09,272 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 76 selfloop transitions, 19 changer transitions 0/104 dead transitions. [2024-06-28 01:09:09,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 104 transitions, 753 flow [2024-06-28 01:09:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-28 01:09:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-28 01:09:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2024-06-28 01:09:09,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4673913043478261 [2024-06-28 01:09:09,275 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 361 flow. Second operand 8 states and 172 transitions. [2024-06-28 01:09:09,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 104 transitions, 753 flow [2024-06-28 01:09:09,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 104 transitions, 663 flow, removed 21 selfloop flow, removed 10 redundant places. [2024-06-28 01:09:09,294 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 348 flow [2024-06-28 01:09:09,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=348, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2024-06-28 01:09:09,296 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2024-06-28 01:09:09,296 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 348 flow [2024-06-28 01:09:09,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 9 states have internal predecessors, (168), 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) [2024-06-28 01:09:09,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:09,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:09,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-06-28 01:09:09,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:09,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:09,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:09,517 INFO L85 PathProgramCache]: Analyzing trace with hash 889073511, now seen corresponding path program 1 times [2024-06-28 01:09:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:09,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181168178] [2024-06-28 01:09:09,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:09,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:09,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-28 01:09:09,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181168178] [2024-06-28 01:09:09,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181168178] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214454719] [2024-06-28 01:09:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:09,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:09,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:09,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-28 01:09:09,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-06-28 01:09:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:09,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2024-06-28 01:09:09,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:09:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-28 01:09:09,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:09:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-28 01:09:09,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214454719] provided 1 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:09,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-06-28 01:09:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-06-28 01:09:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162513401] [2024-06-28 01:09:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:09:09,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:09:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:09:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:09:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:09:09,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-06-28 01:09:09,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-06-28 01:09:09,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:09:09,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-06-28 01:09:09,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:09:10,207 INFO L124 PetriNetUnfolderBase]: 2132/3903 cut-off events. [2024-06-28 01:09:10,207 INFO L125 PetriNetUnfolderBase]: For 4591/4591 co-relation queries the response was YES. [2024-06-28 01:09:10,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10852 conditions, 3903 events. 2132/3903 cut-off events. For 4591/4591 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 24251 event pairs, 1048 based on Foata normal form. 201/3906 useless extension candidates. Maximal degree in co-relation 6864. Up to 2277 conditions per place. [2024-06-28 01:09:10,232 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 76 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-06-28 01:09:10,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 631 flow [2024-06-28 01:09:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:09:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:09:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2024-06-28 01:09:10,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5347826086956522 [2024-06-28 01:09:10,234 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 348 flow. Second operand 5 states and 123 transitions. [2024-06-28 01:09:10,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 631 flow [2024-06-28 01:09:10,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 92 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:09:10,243 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 366 flow [2024-06-28 01:09:10,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=366, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2024-06-28 01:09:10,244 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 30 predicate places. [2024-06-28 01:09:10,244 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 366 flow [2024-06-28 01:09:10,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-06-28 01:09:10,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:09:10,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:09:10,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-06-28 01:09:10,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:10,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:09:10,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:09:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1536372577, now seen corresponding path program 1 times [2024-06-28 01:09:10,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:09:10,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509371228] [2024-06-28 01:09:10,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:10,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:09:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:09:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509371228] [2024-06-28 01:09:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509371228] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:09:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832125908] [2024-06-28 01:09:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:09:12,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:09:12,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:09:12,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-28 01:09:12,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-06-28 01:09:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:09:12,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 37 conjunts are in the unsatisfiable core [2024-06-28 01:09:12,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:09:12,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-06-28 01:09:12,284 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-06-28 01:09:12,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 14 [2024-06-28 01:09:12,343 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2024-06-28 01:09:12,343 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 16 treesize of output 18 [2024-06-28 01:09:12,578 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-06-28 01:09:12,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2024-06-28 01:09:12,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:12,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2024-06-28 01:09:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:09:12,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:09:13,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:13,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 356 treesize of output 336 [2024-06-28 01:09:13,718 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 163 treesize of output 159 [2024-06-28 01:09:14,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:14,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 149 [2024-06-28 01:09:15,299 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:15,300 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:09:15,318 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:15,321 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:09:15,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:15,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 149 [2024-06-28 01:09:16,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:16,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 149 [2024-06-28 01:09:17,476 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,476 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 1 [2024-06-28 01:09:17,506 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,506 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:09:17,575 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,575 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 1 [2024-06-28 01:09:17,618 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,619 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:09:17,658 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,658 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:09:17,674 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:17,674 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:09:17,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:17,691 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2024-06-28 01:09:18,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:18,759 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 43 [2024-06-28 01:09:58,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-06-28 01:09:59,297 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:09:59,297 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:09:59,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:09:59,314 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2024-06-28 01:10:00,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-06-28 01:10:01,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:10:01,063 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 43 [2024-06-28 01:10:31,845 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 71 treesize of output 59 [2024-06-28 01:10:31,890 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 429 treesize of output 361 [2024-06-28 01:10:32,811 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 47 treesize of output 39 [2024-06-28 01:10:32,825 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 87 treesize of output 71 [2024-06-28 01:10:37,428 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 71 treesize of output 59 [2024-06-28 01:10:37,462 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 302 treesize of output 250 [2024-06-28 01:10:37,879 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 22 treesize of output 18 [2024-06-28 01:10:37,886 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 65 treesize of output 53 [2024-06-28 01:10:38,685 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 22 treesize of output 18 [2024-06-28 01:10:38,692 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 65 treesize of output 53 [2024-06-28 01:10:39,401 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 47 treesize of output 39 [2024-06-28 01:10:39,418 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 234 treesize of output 194 [2024-06-28 01:10:39,631 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 47 treesize of output 39 [2024-06-28 01:10:39,646 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 87 treesize of output 71 [2024-06-28 01:10:40,850 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 47 treesize of output 39 [2024-06-28 01:10:40,867 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 153 treesize of output 129 [2024-06-28 01:10:40,943 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 22 treesize of output 18 [2024-06-28 01:10:40,950 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 65 treesize of output 53 [2024-06-28 01:10:41,569 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 22 treesize of output 18 [2024-06-28 01:10:41,579 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 65 treesize of output 53 [2024-06-28 01:10:42,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 81 [2024-06-28 01:10:42,339 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 374 treesize of output 310 [2024-06-28 01:10:42,952 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:42,952 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:10:42,968 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:42,968 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:10:42,996 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:42,996 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:10:43,014 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,015 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:10:43,032 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,032 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:10:43,046 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,047 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:10:43,072 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,072 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:10:43,082 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,082 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:10:43,136 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,137 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 1 [2024-06-28 01:10:43,188 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,188 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:10:43,200 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:10:43,200 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:10:43,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 59 [2024-06-28 01:10:43,289 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 429 treesize of output 361 [2024-06-28 01:10:43,996 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 47 treesize of output 39 [2024-06-28 01:10:44,009 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 87 treesize of output 71 [2024-06-28 01:10:45,772 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 71 treesize of output 59 [2024-06-28 01:10:45,798 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 107 treesize of output 87 [2024-06-28 01:10:47,165 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:10:47,186 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:10:48,741 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 24 treesize of output 20 [2024-06-28 01:10:48,750 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 69 treesize of output 57 [2024-06-28 01:10:49,447 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 51 treesize of output 43 [2024-06-28 01:10:49,456 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 141 treesize of output 117 [2024-06-28 01:11:02,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-06-28 01:11:02,047 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 69 treesize of output 57 [2024-06-28 01:11:02,783 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 47 treesize of output 39 [2024-06-28 01:11:02,804 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 153 treesize of output 129 [2024-06-28 01:11:02,880 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 22 treesize of output 18 [2024-06-28 01:11:02,889 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 65 treesize of output 53 [2024-06-28 01:11:03,507 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 22 treesize of output 18 [2024-06-28 01:11:03,514 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 65 treesize of output 53 [2024-06-28 01:11:04,092 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 22 treesize of output 18 [2024-06-28 01:11:04,101 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 65 treesize of output 53 [2024-06-28 01:11:04,761 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 47 treesize of output 39 [2024-06-28 01:11:04,778 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 234 treesize of output 194 [2024-06-28 01:11:04,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2024-06-28 01:11:04,993 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 87 treesize of output 71 [2024-06-28 01:11:05,995 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:11:06,303 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 97 treesize of output 81 [2024-06-28 01:11:06,342 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 129 treesize of output 105 [2024-06-28 01:11:28,205 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 47 treesize of output 39 [2024-06-28 01:11:28,220 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 87 treesize of output 71 [2024-06-28 01:11:29,075 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 22 treesize of output 18 [2024-06-28 01:11:29,081 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 65 treesize of output 53 [2024-06-28 01:11:29,828 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 22 treesize of output 18 [2024-06-28 01:11:29,834 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 65 treesize of output 53 [2024-06-28 01:11:30,561 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:30,561 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:11:30,572 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:30,572 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:11:30,581 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:30,581 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:11:30,591 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:30,591 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:11:30,601 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:30,601 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:11:30,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:11:30,612 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2024-06-28 01:11:31,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-06-28 01:11:31,794 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,795 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:11:31,814 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,815 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:11:31,888 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,888 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:11:31,905 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,905 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:11:31,918 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,919 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-06-28 01:11:31,965 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,965 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 1 [2024-06-28 01:11:31,995 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:31,995 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2024-06-28 01:11:32,007 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-06-28 01:11:32,008 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2024-06-28 01:11:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:11:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832125908] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 01:11:32,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 01:11:32,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 35 [2024-06-28 01:11:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718793533] [2024-06-28 01:11:32,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 01:11:32,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-06-28 01:11:32,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:11:32,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-06-28 01:11:32,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1074, Unknown=0, NotChecked=0, Total=1260 [2024-06-28 01:11:32,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 46 [2024-06-28 01:11:32,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 366 flow. Second operand has 36 states, 36 states have (on average 13.61111111111111) internal successors, (490), 36 states have internal predecessors, (490), 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) [2024-06-28 01:11:32,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:11:32,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 46 [2024-06-28 01:11:32,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:11:34,734 INFO L124 PetriNetUnfolderBase]: 3191/6303 cut-off events. [2024-06-28 01:11:34,735 INFO L125 PetriNetUnfolderBase]: For 8394/8394 co-relation queries the response was YES. [2024-06-28 01:11:34,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17535 conditions, 6303 events. 3191/6303 cut-off events. For 8394/8394 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 45758 event pairs, 439 based on Foata normal form. 3/5945 useless extension candidates. Maximal degree in co-relation 12058. Up to 2703 conditions per place. [2024-06-28 01:11:34,782 INFO L140 encePairwiseOnDemand]: 32/46 looper letters, 155 selfloop transitions, 75 changer transitions 1/241 dead transitions. [2024-06-28 01:11:34,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 241 transitions, 1677 flow [2024-06-28 01:11:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-06-28 01:11:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-06-28 01:11:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 423 transitions. [2024-06-28 01:11:34,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3998109640831758 [2024-06-28 01:11:34,786 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 366 flow. Second operand 23 states and 423 transitions. [2024-06-28 01:11:34,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 241 transitions, 1677 flow [2024-06-28 01:11:34,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 241 transitions, 1635 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-06-28 01:11:34,802 INFO L231 Difference]: Finished difference. Result has 101 places, 132 transitions, 1010 flow [2024-06-28 01:11:34,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1010, PETRI_PLACES=101, PETRI_TRANSITIONS=132} [2024-06-28 01:11:34,803 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 56 predicate places. [2024-06-28 01:11:34,803 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 132 transitions, 1010 flow [2024-06-28 01:11:34,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.61111111111111) internal successors, (490), 36 states have internal predecessors, (490), 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) [2024-06-28 01:11:34,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:11:34,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:11:34,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-06-28 01:11:35,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-06-28 01:11:35,019 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-28 01:11:35,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:11:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash 992512565, now seen corresponding path program 2 times [2024-06-28 01:11:35,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:11:35,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448079914] [2024-06-28 01:11:35,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:11:35,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:11:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:11:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:11:36,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:11:36,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448079914] [2024-06-28 01:11:36,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448079914] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:11:36,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238808942] [2024-06-28 01:11:36,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-28 01:11:36,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:11:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:11:36,354 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-28 01:11:36,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-06-28 01:11:36,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-06-28 01:11:36,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-28 01:11:36,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 53 conjunts are in the unsatisfiable core [2024-06-28 01:11:36,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:11:36,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-06-28 01:11:36,538 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-06-28 01:11:36,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-06-28 01:11:36,619 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-06-28 01:11:36,619 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-06-28 01:11:36,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-06-28 01:11:37,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 39 treesize of output 15 [2024-06-28 01:11:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-28 01:11:37,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:11:37,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:11:37,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 356 treesize of output 336 [2024-06-28 01:11:37,729 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 75 treesize of output 73 [2024-06-28 01:11:37,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:11:37,795 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 198 treesize of output 190 [2024-06-28 01:11:37,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:11:37,823 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 146 treesize of output 134 [2024-06-28 01:11:45,925 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:11:51,339 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:11:56,973 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:11:59,341 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:19,605 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:19,674 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:21,647 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:21,719 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:26,441 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:26,598 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:26,723 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:26,783 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-06-28 01:12:27,291 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:27,496 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:27,677 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:12:41,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:12:41,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 438 treesize of output 374 [2024-06-28 01:12:43,336 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-06-28 01:14:12,150 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:14:54,006 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:15:16,253 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:15:24,304 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:15:36,718 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:17:26,122 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:18:14,838 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:18:40,628 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:18:49,012 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:19:05,602 WARN L293 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:19:46,839 WARN L293 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:20:08,155 WARN L293 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:20:17,773 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:21:05,897 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:21:14,074 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:22:09,141 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-28 01:22:59,873 WARN L293 SmtUtils]: Spent 16.07s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15