./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_90-arrayloop2_racing.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/goblint-regression/28-race_reach_90-arrayloop2_racing.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_90-arrayloop2_racing.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:32:47,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:32:47,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:32:47,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:32:47,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:32:47,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:32:47,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:32:47,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:32:47,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:32:47,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:32:47,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:32:47,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:32:47,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:32:47,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:32:47,332 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:32:47,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:32:47,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:32:47,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:32:47,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:32:47,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:32:47,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:32:47,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:32:47,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:32:47,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:32:47,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:32:47,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:32:47,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:32:47,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:32:47,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:32:47,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:32:47,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:32:47,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:32:47,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:32:47,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:32:47,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:32:47,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:32:47,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:32:47,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:32:47,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:32:47,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:32:47,338 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:32:47,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:32:47,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:32:47,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:32:47,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:32:47,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:32:47,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:32:47,531 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:32:47,531 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:32:47,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_90-arrayloop2_racing.yml/witness.yml [2024-02-07 19:32:47,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:32:47,627 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:32:47,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-02-07 19:32:48,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:32:48,925 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:32:48,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-02-07 19:32:48,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e2f7ef5/7b4f9bdc70fa4d67bd3a751e5b5b56e3/FLAG8976b87e2 [2024-02-07 19:32:48,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e2f7ef5/7b4f9bdc70fa4d67bd3a751e5b5b56e3 [2024-02-07 19:32:48,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:32:48,956 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:32:48,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:32:48,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:32:48,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:32:48,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:32:47" (1/2) ... [2024-02-07 19:32:48,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a065f2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:32:48, skipping insertion in model container [2024-02-07 19:32:48,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:32:47" (1/2) ... [2024-02-07 19:32:48,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37ce1cc8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:32:48, skipping insertion in model container [2024-02-07 19:32:48,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:32:48" (2/2) ... [2024-02-07 19:32:48,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a065f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:48, skipping insertion in model container [2024-02-07 19:32:48,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:32:48" (2/2) ... [2024-02-07 19:32:48,965 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:32:49,024 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:32:49,025 INFO L76 edCorrectnessWitness]: Location invariant after [L1082-L1082] ((((((((((((((((((((((((i == 21 || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22 [2024-02-07 19:32:49,025 INFO L76 edCorrectnessWitness]: Location invariant before [L1078-L1078] (0 <= i) && (i <= 9) [2024-02-07 19:32:49,025 INFO L76 edCorrectnessWitness]: Location invariant before [L1079-L1079] (0 <= i) && (i <= 9) [2024-02-07 19:32:49,025 INFO L76 edCorrectnessWitness]: Location invariant before [L1071-L1071] j <= 9 [2024-02-07 19:32:49,026 INFO L76 edCorrectnessWitness]: Location invariant after [L1082-L1082] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,026 INFO L76 edCorrectnessWitness]: Location invariant before [L1051-L1051] j <= 9 [2024-02-07 19:32:49,026 INFO L76 edCorrectnessWitness]: Location invariant before [L1083-L1083] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,026 INFO L76 edCorrectnessWitness]: Location invariant after [L1083-L1083] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant before [L1024-L1024] (0 <= x) && (x <= 261) [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant after [L1083-L1083] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant before [L1063-L1063] j <= 9 [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant after [L1080-L1080] ((0 <= i) && (i <= 9)) && (((((((6 <= j && j <= 29) || j == 5) || j == 4) || j == 3) || j == 2) || j == 1) || (0 == j && j == 0)) [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant before [L1082-L1082] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,027 INFO L76 edCorrectnessWitness]: Location invariant before [L1083-L1083] (((((((((((((((((((((((((25 <= i && i <= 9999) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:32:49,028 INFO L76 edCorrectnessWitness]: Location invariant before [L1080-L1080] ((0 <= i) && (i <= 9)) && (((((((6 <= j && j <= 29) || j == 5) || j == 4) || j == 3) || j == 2) || j == 1) || (0 == j && j == 0)) [2024-02-07 19:32:49,028 INFO L76 edCorrectnessWitness]: Location invariant before [L1082-L1082] ((((((((((((((((((((((((i == 21 || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22 [2024-02-07 19:32:49,028 INFO L76 edCorrectnessWitness]: Location invariant before [L1043-L1043] j <= 9 [2024-02-07 19:32:49,072 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:32:49,438 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-02-07 19:32:49,454 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,454 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,455 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,456 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,491 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:32:49,521 INFO L206 MainTranslator]: Completed pre-run [2024-02-07 19:32:49,560 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] Start Parsing Local [2024-02-07 19:32:49,587 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,588 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,588 WARN L1564 CHandler]: Possible shadowing of function new [2024-02-07 19:32:49,589 WARN L1564 CHandler]: Possible shadowing of function new Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:32:49,655 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:32:49,712 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:32:49,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49 WrapperNode [2024-02-07 19:32:49,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:32:49,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:32:49,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:32:49,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:32:49,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,802 INFO L138 Inliner]: procedures = 279, calls = 72, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 338 [2024-02-07 19:32:49,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:32:49,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:32:49,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:32:49,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:32:49,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,861 INFO L175 MemorySlicer]: Split 37 memory accesses to 5 slices as follows [2, 5, 26, 2, 2]. 70 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0]. The 17 writes are split as follows [0, 0, 15, 1, 1]. [2024-02-07 19:32:49,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:32:49,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:32:49,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:32:49,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:32:49,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (1/1) ... [2024-02-07 19:32:49,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:32:49,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:32:49,955 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) [2024-02-07 19:32:49,974 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 [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-02-07 19:32:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-02-07 19:32:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:32:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-02-07 19:32:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:32:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-07 19:32:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:32:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:32:49,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:32:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:32:49,996 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:32:50,139 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:32:50,141 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:32:50,513 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:32:50,513 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:32:50,735 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:32:50,736 INFO L320 CfgBuilder]: Removed 30 assume(true) statements. [2024-02-07 19:32:50,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:32:50 BoogieIcfgContainer [2024-02-07 19:32:50,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:32:50,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:32:50,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:32:50,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:32:50,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:32:47" (1/4) ... [2024-02-07 19:32:50,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dfc0c5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:32:50, skipping insertion in model container [2024-02-07 19:32:50,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:32:48" (2/4) ... [2024-02-07 19:32:50,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dfc0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:32:50, skipping insertion in model container [2024-02-07 19:32:50,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:32:49" (3/4) ... [2024-02-07 19:32:50,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dfc0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:32:50, skipping insertion in model container [2024-02-07 19:32:50,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:32:50" (4/4) ... [2024-02-07 19:32:50,748 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-02-07 19:32:50,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:32:50,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-02-07 19:32:50,765 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:32:51,011 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-07 19:32:51,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 141 transitions, 302 flow [2024-02-07 19:32:51,102 INFO L124 PetriNetUnfolderBase]: 52/232 cut-off events. [2024-02-07 19:32:51,102 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-02-07 19:32:51,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 232 events. 52/232 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1041 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 134. Up to 8 conditions per place. [2024-02-07 19:32:51,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 141 transitions, 302 flow [2024-02-07 19:32:51,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 141 transitions, 302 flow [2024-02-07 19:32:51,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:32:51,130 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;@296e0477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:32:51,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-02-07 19:32:51,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:32:51,133 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-02-07 19:32:51,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:32:51,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:32:51,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-07 19:32:51,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:32:51,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:32:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash 865389, now seen corresponding path program 1 times [2024-02-07 19:32:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:32:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481787642] [2024-02-07 19:32:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:32:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:32:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:51,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:32:51,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481787642] [2024-02-07 19:32:51,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481787642] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:32:51,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:32:51,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:32:51,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787823690] [2024-02-07 19:32:51,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:32:51,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:32:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:32:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:32:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:32:51,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 141 [2024-02-07 19:32:51,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 141 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-07 19:32:51,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:32:51,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 141 [2024-02-07 19:32:51,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:32:53,101 INFO L124 PetriNetUnfolderBase]: 8205/16317 cut-off events. [2024-02-07 19:32:53,103 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-02-07 19:32:53,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28514 conditions, 16317 events. 8205/16317 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 137499 event pairs, 6954 based on Foata normal form. 2672/16817 useless extension candidates. Maximal degree in co-relation 27067. Up to 12060 conditions per place. [2024-02-07 19:32:53,197 INFO L140 encePairwiseOnDemand]: 114/141 looper letters, 78 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2024-02-07 19:32:53,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 125 transitions, 430 flow [2024-02-07 19:32:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:32:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:32:53,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-02-07 19:32:53,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-02-07 19:32:53,210 INFO L175 Difference]: Start difference. First operand has 112 places, 141 transitions, 302 flow. Second operand 3 states and 240 transitions. [2024-02-07 19:32:53,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 125 transitions, 430 flow [2024-02-07 19:32:53,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 125 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:32:53,217 INFO L231 Difference]: Finished difference. Result has 115 places, 120 transitions, 274 flow [2024-02-07 19:32:53,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=115, PETRI_TRANSITIONS=120} [2024-02-07 19:32:53,221 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 3 predicate places. [2024-02-07 19:32:53,221 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 120 transitions, 274 flow [2024-02-07 19:32:53,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-07 19:32:53,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:32:53,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:32:53,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:32:53,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:32:53,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:32:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash 11840776, now seen corresponding path program 1 times [2024-02-07 19:32:53,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:32:53,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443174361] [2024-02-07 19:32:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:32:53,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 19:32:53,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062722520] [2024-02-07 19:32:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:53,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:32:53,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:32:53,251 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) [2024-02-07 19:32:53,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-02-07 19:32:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:32:53,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2024-02-07 19:32:53,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:32:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:53,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-07 19:32:53,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:32:53,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443174361] [2024-02-07 19:32:53,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 19:32:53,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062722520] [2024-02-07 19:32:53,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062722520] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:32:53,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:32:53,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:32:53,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358324785] [2024-02-07 19:32:53,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:32:53,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:32:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:32:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:32:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:32:53,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 141 [2024-02-07 19:32:53,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 120 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2024-02-07 19:32:53,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:32:53,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 141 [2024-02-07 19:32:53,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:32:54,890 INFO L124 PetriNetUnfolderBase]: 8205/16316 cut-off events. [2024-02-07 19:32:54,891 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2024-02-07 19:32:54,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28523 conditions, 16316 events. 8205/16316 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 137468 event pairs, 6954 based on Foata normal form. 0/14147 useless extension candidates. Maximal degree in co-relation 28498. Up to 12061 conditions per place. [2024-02-07 19:32:54,967 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 77 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2024-02-07 19:32:54,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 125 transitions, 446 flow [2024-02-07 19:32:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:32:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:32:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2024-02-07 19:32:54,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383 [2024-02-07 19:32:54,969 INFO L175 Difference]: Start difference. First operand has 115 places, 120 transitions, 274 flow. Second operand 4 states and 258 transitions. [2024-02-07 19:32:54,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 125 transitions, 446 flow [2024-02-07 19:32:54,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 125 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:32:54,972 INFO L231 Difference]: Finished difference. Result has 119 places, 122 transitions, 296 flow [2024-02-07 19:32:54,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=119, PETRI_TRANSITIONS=122} [2024-02-07 19:32:54,973 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2024-02-07 19:32:54,973 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 122 transitions, 296 flow [2024-02-07 19:32:54,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2024-02-07 19:32:54,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:32:54,974 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-02-07 19:32:55,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-02-07 19:32:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:32:55,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:32:55,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:32:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash 367067149, now seen corresponding path program 1 times [2024-02-07 19:32:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:32:55,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158372226] [2024-02-07 19:32:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:55,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:32:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:32:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:32:55,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158372226] [2024-02-07 19:32:55,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158372226] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:32:55,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:32:55,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:32:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932355381] [2024-02-07 19:32:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:32:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:32:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:32:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:32:55,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:32:55,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 141 [2024-02-07 19:32:55,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-02-07 19:32:55,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:32:55,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 141 [2024-02-07 19:32:55,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:32:56,814 INFO L124 PetriNetUnfolderBase]: 8205/16321 cut-off events. [2024-02-07 19:32:56,814 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2024-02-07 19:32:56,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28547 conditions, 16321 events. 8205/16321 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 137568 event pairs, 6954 based on Foata normal form. 2/14155 useless extension candidates. Maximal degree in co-relation 28506. Up to 12064 conditions per place. [2024-02-07 19:32:56,929 INFO L140 encePairwiseOnDemand]: 138/141 looper letters, 76 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-02-07 19:32:56,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 126 transitions, 474 flow [2024-02-07 19:32:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:32:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:32:56,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2024-02-07 19:32:56,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5106382978723404 [2024-02-07 19:32:56,936 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 296 flow. Second operand 3 states and 216 transitions. [2024-02-07 19:32:56,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 126 transitions, 474 flow [2024-02-07 19:32:56,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 126 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:32:56,942 INFO L231 Difference]: Finished difference. Result has 120 places, 124 transitions, 319 flow [2024-02-07 19:32:56,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=120, PETRI_TRANSITIONS=124} [2024-02-07 19:32:56,943 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 8 predicate places. [2024-02-07 19:32:56,944 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 124 transitions, 319 flow [2024-02-07 19:32:56,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-02-07 19:32:56,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:32:56,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:32:56,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:32:56,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:32:56,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:32:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash 367064986, now seen corresponding path program 1 times [2024-02-07 19:32:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:32:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977037736] [2024-02-07 19:32:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:56,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:32:56,982 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 19:32:56,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587896239] [2024-02-07 19:32:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:56,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:32:56,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:32:56,984 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) [2024-02-07 19:32:57,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-02-07 19:32:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:32:57,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 19:32:57,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:32:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:57,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-07 19:32:57,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:32:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977037736] [2024-02-07 19:32:57,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 19:32:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587896239] [2024-02-07 19:32:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587896239] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:32:57,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:32:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:32:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756229358] [2024-02-07 19:32:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:32:57,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:32:57,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:32:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:32:57,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:32:57,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 141 [2024-02-07 19:32:57,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 124 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-02-07 19:32:57,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:32:57,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 141 [2024-02-07 19:32:57,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:32:58,782 INFO L124 PetriNetUnfolderBase]: 8205/16326 cut-off events. [2024-02-07 19:32:58,782 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-02-07 19:32:58,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28578 conditions, 16326 events. 8205/16326 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 137598 event pairs, 6954 based on Foata normal form. 4/14160 useless extension candidates. Maximal degree in co-relation 28508. Up to 12051 conditions per place. [2024-02-07 19:32:58,863 INFO L140 encePairwiseOnDemand]: 132/141 looper letters, 77 selfloop transitions, 10 changer transitions 0/130 dead transitions. [2024-02-07 19:32:58,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 130 transitions, 523 flow [2024-02-07 19:32:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:32:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:32:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 342 transitions. [2024-02-07 19:32:58,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2024-02-07 19:32:58,865 INFO L175 Difference]: Start difference. First operand has 120 places, 124 transitions, 319 flow. Second operand 6 states and 342 transitions. [2024-02-07 19:32:58,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 130 transitions, 523 flow [2024-02-07 19:32:58,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 130 transitions, 520 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:32:58,869 INFO L231 Difference]: Finished difference. Result has 124 places, 125 transitions, 360 flow [2024-02-07 19:32:58,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=124, PETRI_TRANSITIONS=125} [2024-02-07 19:32:58,869 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 12 predicate places. [2024-02-07 19:32:58,870 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 125 transitions, 360 flow [2024-02-07 19:32:58,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-02-07 19:32:58,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:32:58,870 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-02-07 19:32:58,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-02-07 19:32:59,081 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,SelfDestructingSolverStorable3 [2024-02-07 19:32:59,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:32:59,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:32:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash 247215870, now seen corresponding path program 1 times [2024-02-07 19:32:59,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:32:59,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184440275] [2024-02-07 19:32:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:32:59,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 19:32:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741495069] [2024-02-07 19:32:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:32:59,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:32:59,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:32:59,124 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) [2024-02-07 19:32:59,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-02-07 19:32:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:32:59,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2024-02-07 19:32:59,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:32:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:59,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 19:32:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:32:59,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:32:59,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184440275] [2024-02-07 19:32:59,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 19:32:59,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741495069] [2024-02-07 19:32:59,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741495069] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 19:32:59,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-02-07 19:32:59,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-02-07 19:32:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134809436] [2024-02-07 19:32:59,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-02-07 19:32:59,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-07 19:32:59,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:32:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-07 19:32:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-02-07 19:32:59,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 141 [2024-02-07 19:32:59,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 360 flow. Second operand has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 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) [2024-02-07 19:32:59,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:32:59,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 141 [2024-02-07 19:32:59,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:33:00,513 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-02-07 19:33:00,513 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-02-07 19:33:00,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 23 events. 1/23 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 8/31 useless extension candidates. Maximal degree in co-relation 89. Up to 7 conditions per place. [2024-02-07 19:33:00,513 INFO L140 encePairwiseOnDemand]: 135/141 looper letters, 14 selfloop transitions, 9 changer transitions 0/23 dead transitions. [2024-02-07 19:33:00,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 179 flow [2024-02-07 19:33:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-02-07 19:33:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-02-07 19:33:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 418 transitions. [2024-02-07 19:33:00,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32939322301024426 [2024-02-07 19:33:00,516 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 360 flow. Second operand 9 states and 418 transitions. [2024-02-07 19:33:00,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 179 flow [2024-02-07 19:33:00,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 118 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-02-07 19:33:00,518 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 95 flow [2024-02-07 19:33:00,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=95, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2024-02-07 19:33:00,520 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -85 predicate places. [2024-02-07 19:33:00,520 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 95 flow [2024-02-07 19:33:00,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 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) [2024-02-07 19:33:00,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:33:00,521 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1] [2024-02-07 19:33:00,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-02-07 19:33:00,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:33:00,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:33:00,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:33:00,749 INFO L85 PathProgramCache]: Analyzing trace with hash -81769474, now seen corresponding path program 2 times [2024-02-07 19:33:00,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:33:00,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933589083] [2024-02-07 19:33:00,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:33:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:33:00,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 19:33:00,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060907264] [2024-02-07 19:33:00,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-02-07 19:33:00,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:33:00,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:33:00,841 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) [2024-02-07 19:33:00,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-02-07 19:33:01,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-02-07 19:33:01,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-07 19:33:01,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 29 conjunts are in the unsatisfiable core [2024-02-07 19:33:01,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:33:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:33:01,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 19:33:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:33:02,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:33:02,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933589083] [2024-02-07 19:33:02,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 19:33:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060907264] [2024-02-07 19:33:02,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060907264] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 19:33:02,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-02-07 19:33:02,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-02-07 19:33:02,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377579421] [2024-02-07 19:33:02,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-02-07 19:33:02,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-02-07 19:33:02,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:33:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-02-07 19:33:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2024-02-07 19:33:02,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 141 [2024-02-07 19:33:02,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 95 flow. Second operand has 18 states, 18 states have (on average 45.27777777777778) internal successors, (815), 18 states have internal predecessors, (815), 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) [2024-02-07 19:33:02,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:33:02,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 141 [2024-02-07 19:33:02,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:33:05,451 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-02-07 19:33:05,452 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-02-07 19:33:05,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 47 events. 1/47 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 8/55 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2024-02-07 19:33:05,452 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 30 selfloop transitions, 17 changer transitions 0/47 dead transitions. [2024-02-07 19:33:05,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 359 flow [2024-02-07 19:33:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-02-07 19:33:05,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-02-07 19:33:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 786 transitions. [2024-02-07 19:33:05,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.327909887359199 [2024-02-07 19:33:05,457 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 95 flow. Second operand 17 states and 786 transitions. [2024-02-07 19:33:05,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 359 flow [2024-02-07 19:33:05,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 304 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-02-07 19:33:05,458 INFO L231 Difference]: Finished difference. Result has 48 places, 23 transitions, 199 flow [2024-02-07 19:33:05,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=199, PETRI_PLACES=48, PETRI_TRANSITIONS=23} [2024-02-07 19:33:05,459 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -64 predicate places. [2024-02-07 19:33:05,459 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 199 flow [2024-02-07 19:33:05,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.27777777777778) internal successors, (815), 18 states have internal predecessors, (815), 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) [2024-02-07 19:33:05,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:33:05,460 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 14, 13, 1, 1, 1, 1, 1] [2024-02-07 19:33:05,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-02-07 19:33:05,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:33:05,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2024-02-07 19:33:05,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:33:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash 667022846, now seen corresponding path program 3 times [2024-02-07 19:33:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:33:05,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222385189] [2024-02-07 19:33:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:33:05,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:33:05,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 19:33:05,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872621367] [2024-02-07 19:33:05,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-02-07 19:33:05,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:33:05,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:33:05,979 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) [2024-02-07 19:33:05,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15