./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.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_buggy_simple_loop1_vf.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28_buggy_simple_loop1_vf.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-dev-958ec4d-m [2024-02-07 14:44:26,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:44:26,340 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:44:26,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:44:26,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:44:26,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:44:26,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:44:26,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:44:26,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:44:26,370 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:44:26,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:44:26,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:44:26,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:44:26,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:44:26,375 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:44:26,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:44:26,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:44:26,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:44:26,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:44:26,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:44:26,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:44:26,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:44:26,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:44:26,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:44:26,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:44:26,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:44:26,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:44:26,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:44:26,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:44:26,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:44:26,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:44:26,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:44:26,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:44:26,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:44:26,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:44:26,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:44:26,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:44:26,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:44:26,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:44:26,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:44:26,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:44:26,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:44:26,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:44:26,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:44:26,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:44:26,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:44:26,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:44:26,624 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:44:26,624 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:44:26,625 INFO L431 ainManager$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_buggy_simple_loop1_vf.yml/witness.yml [2024-02-07 14:44:26,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:44:26,837 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:44:26,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2024-02-07 14:44:28,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:44:28,314 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:44:28,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2024-02-07 14:44:28,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd27b7ce/0e954986ee964174bbc92a6bb786b410/FLAG985ba30c6 [2024-02-07 14:44:28,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd27b7ce/0e954986ee964174bbc92a6bb786b410 [2024-02-07 14:44:28,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:44:28,352 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:44:28,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:44:28,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:44:28,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:44:28,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:44:26" (1/2) ... [2024-02-07 14:44:28,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1625fe13 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:44:28, skipping insertion in model container [2024-02-07 14:44:28,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:44:26" (1/2) ... [2024-02-07 14:44:28,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5bd31468 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:44:28, skipping insertion in model container [2024-02-07 14:44:28,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:44:28" (2/2) ... [2024-02-07 14:44:28,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1625fe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:28, skipping insertion in model container [2024-02-07 14:44:28,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:44:28" (2/2) ... [2024-02-07 14:44:28,363 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:44:28,534 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:44:28,535 INFO L76 edCorrectnessWitness]: Location invariant before [L695-L695] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 14:44:28,536 INFO L76 edCorrectnessWitness]: Location invariant before [L687-L687] ((((((((((((((2147483647LL + (long long )i) + (long long )j >= 0LL) && ((2147483647LL + (long long )j) + (long long )k >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((2147483646LL - (long long )i) + (long long )j >= 0LL)) && ((2147483649LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((2147483646LL + (long long )j) - (long long )k >= 0LL)) && ((2147483649LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((2147483648LL - (long long )i) - (long long )j >= 0LL)) && ((2147483648LL - (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && (1 == j)) && (j == 1) [2024-02-07 14:44:28,536 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )x >= 0LL) && ((2147483648LL + (long long )i) + (long long )y >= 0LL)) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )x >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )x >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )x >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )x >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )x >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL - (long long )x) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )x + (long long )y >= 0LL)) && ((long long )x + (long long )z >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )x >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )x >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )x >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )x >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )x >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )x >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )x) - (long long )y >= 0LL)) && ((8589934590LL - (long long )x) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 14:44:28,536 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )y >= 0LL) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 14:44:28,536 INFO L76 edCorrectnessWitness]: Location invariant before [L696-L696] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant before [L695-L695] (((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL)) && (((1 <= k && ((y <= 2147483648U && (((1U <= x && x != 0U) && ((((3U <= y && x <= 2147483646U) && (-2LL - (long long )x) + (long long )y >= 0LL) && y != 0U) || x <= 2147483647U)) || x <= 2147483647U)) || ((0 <= i && 1 <= j) && x <= 2147483647U))) || (1 <= j && x <= 2147483647U)) || ((0 <= i && 1 <= k) && x <= 2147483647U)) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )x >= 0LL) && ((2147483648LL + (long long )i) + (long long )y >= 0LL)) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )x >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )x >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )x >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )x >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )x >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL - (long long )x) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )x + (long long )y >= 0LL)) && ((long long )x + (long long )z >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )x >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )x >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )x >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )x >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )x >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )x >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )x) - (long long )y >= 0LL)) && ((8589934590LL - (long long )x) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )z >= 0LL) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant after [L695-L695] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant before [L691-L691] ((((((((0 <= i) && (1U <= x)) && (2U <= y)) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL - (long long )i) + (long long )j >= 0LL)) && (x != 0U)) && (y != 0U)) && (z != 0U)) && ((((((((((i <= 2147483646 && k != 1) && (((k != 2 && (((k != 3 && (((k != 4 && (((k != 5 && (((k != 6 && (((k != 7 && (((k != 8 && (((k != 9 && (((((((10 <= k && 11U <= z) && (-11LL + (long long )j) + (long long )k >= 0LL) && (-10LL + (long long )i) + (long long )k >= 0LL) && (-10LL - (long long )i) + (long long )k >= 0LL) && (-9LL - (long long )j) + (long long )k >= 0LL) && (9LL + (long long )j) - (long long )k >= 0LL) || ((((((((((((((((((((24 <= k && 25U <= z) && (-25LL + (long long )j) + (long long )k >= 0LL) && (-24LL + (long long )i) + (long long )k >= 0LL) && (-24LL - (long long )i) + (long long )k >= 0LL) && (-23LL - (long long )j) + (long long )k >= 0LL) && (23LL + (long long )j) - (long long )k >= 0LL) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23))) || ((((((9 <= k && 10U <= z) && (-10LL + (long long )j) + (long long )k >= 0LL) && (-9LL + (long long )i) + (long long )k >= 0LL) && (-9LL - (long long )i) + (long long )k >= 0LL) && (-8LL - (long long )j) + (long long )k >= 0LL) && (8LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((23 <= k && 24U <= z) && (-24LL + (long long )j) + (long long )k >= 0LL) && (-23LL + (long long )i) + (long long )k >= 0LL) && (-23LL - (long long )i) + (long long )k >= 0LL) && (-22LL - (long long )j) + (long long )k >= 0LL) && (22LL + (long long )j) - (long long )k >= 0LL) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22))) || ((((((8 <= k && 9U <= z) && (-9LL + (long long )j) + (long long )k >= 0LL) && (-8LL + (long long )i) + (long long )k >= 0LL) && (-8LL - (long long )i) + (long long )k >= 0LL) && (-7LL - (long long )j) + (long long )k >= 0LL) && (7LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((22 <= k && 23U <= z) && (-23LL + (long long )j) + (long long )k >= 0LL) && (-22LL + (long long )i) + (long long )k >= 0LL) && (-22LL - (long long )i) + (long long )k >= 0LL) && (-21LL - (long long )j) + (long long )k >= 0LL) && (21LL + (long long )j) - (long long )k >= 0LL) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21))) || ((((((7 <= k && 8U <= z) && (-8LL + (long long )j) + (long long )k >= 0LL) && (-7LL + (long long )i) + (long long )k >= 0LL) && (-7LL - (long long )i) + (long long )k >= 0LL) && (-6LL - (long long )j) + (long long )k >= 0LL) && (6LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((21 <= k && 22U <= z) && (-22LL + (long long )j) + (long long )k >= 0LL) && (-21LL + (long long )i) + (long long )k >= 0LL) && (-21LL - (long long )i) + (long long )k >= 0LL) && (-20LL - (long long )j) + (long long )k >= 0LL) && (20LL + (long long )j) - (long long )k >= 0LL) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20))) || ((((((6 <= k && 7U <= z) && (-7LL + (long long )j) + (long long )k >= 0LL) && (-6LL + (long long )i) + (long long )k >= 0LL) && (-6LL - (long long )i) + (long long )k >= 0LL) && (-5LL - (long long )j) + (long long )k >= 0LL) && (5LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((20 <= k && 21U <= z) && (-21LL + (long long )j) + (long long )k >= 0LL) && (-20LL + (long long )i) + (long long )k >= 0LL) && (-20LL - (long long )i) + (long long )k >= 0LL) && (-19LL - (long long )j) + (long long )k >= 0LL) && (19LL + (long long )j) - (long long )k >= 0LL) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19))) || ((((((5 <= k && 6U <= z) && (-6LL + (long long )j) + (long long )k >= 0LL) && (-5LL + (long long )i) + (long long )k >= 0LL) && (-5LL - (long long )i) + (long long )k >= 0LL) && (-4LL - (long long )j) + (long long )k >= 0LL) && (4LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((19 <= k && 20U <= z) && (-20LL + (long long )j) + (long long )k >= 0LL) && (-19LL + (long long )i) + (long long )k >= 0LL) && (-19LL - (long long )i) + (long long )k >= 0LL) && (-18LL - (long long )j) + (long long )k >= 0LL) && (18LL + (long long )j) - (long long )k >= 0LL) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18))) || ((((((4 <= k && 5U <= z) && (-5LL + (long long )j) + (long long )k >= 0LL) && (-4LL + (long long )i) + (long long )k >= 0LL) && (-4LL - (long long )i) + (long long )k >= 0LL) && (-3LL - (long long )j) + (long long )k >= 0LL) && (3LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((18 <= k && 19U <= z) && (-19LL + (long long )j) + (long long )k >= 0LL) && (-18LL + (long long )i) + (long long )k >= 0LL) && (-18LL - (long long )i) + (long long )k >= 0LL) && (-17LL - (long long )j) + (long long )k >= 0LL) && (17LL + (long long )j) - (long long )k >= 0LL) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17))) || ((((((3 <= k && 4U <= z) && (-4LL + (long long )j) + (long long )k >= 0LL) && (-3LL + (long long )i) + (long long )k >= 0LL) && (-3LL - (long long )i) + (long long )k >= 0LL) && (-2LL - (long long )j) + (long long )k >= 0LL) && (2LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((17 <= k && 18U <= z) && (-18LL + (long long )j) + (long long )k >= 0LL) && (-17LL + (long long )i) + (long long )k >= 0LL) && (-17LL - (long long )i) + (long long )k >= 0LL) && (-16LL - (long long )j) + (long long )k >= 0LL) && (16LL + (long long )j) - (long long )k >= 0LL) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16))) || ((((((2 <= k && 3U <= z) && (-3LL + (long long )j) + (long long )k >= 0LL) && (-2LL + (long long )i) + (long long )k >= 0LL) && (-2LL - (long long )i) + (long long )k >= 0LL) && (-1LL - (long long )j) + (long long )k >= 0LL) && (1LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((16 <= k && 17U <= z) && (-17LL + (long long )j) + (long long )k >= 0LL) && (-16LL + (long long )i) + (long long )k >= 0LL) && (-16LL - (long long )i) + (long long )k >= 0LL) && (-15LL - (long long )j) + (long long )k >= 0LL) && (15LL + (long long )j) - (long long )k >= 0LL) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15))) || ((((((((1 <= k && 2U <= z) && (-2LL + (long long )j) + (long long )k >= 0LL) && (-1LL + (long long )i) + (long long )k >= 0LL) && (-1LL - (long long )i) + (long long )k >= 0LL) && (0LL - (long long )j) + (long long )k >= 0LL) && (long long )j - (long long )k >= 0LL) && j == k) && k != 0)) || (((((((((((((((((((((15 <= k && 16U <= z) && i <= 2147483646) && (-16LL + (long long )j) + (long long )k >= 0LL) && (-15LL + (long long )i) + (long long )k >= 0LL) && (-15LL - (long long )i) + (long long )k >= 0LL) && (-14LL - (long long )j) + (long long )k >= 0LL) && (14LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14)) || ((((((((((((((((((((14 <= k && 15U <= z) && i <= 2147483646) && (-15LL + (long long )j) + (long long )k >= 0LL) && (-14LL + (long long )i) + (long long )k >= 0LL) && (-14LL - (long long )i) + (long long )k >= 0LL) && (-13LL - (long long )j) + (long long )k >= 0LL) && (13LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13)) || (((((((((((((((((((13 <= k && 14U <= z) && i <= 2147483646) && (-14LL + (long long )j) + (long long )k >= 0LL) && (-13LL + (long long )i) + (long long )k >= 0LL) && (-13LL - (long long )i) + (long long )k >= 0LL) && (-12LL - (long long )j) + (long long )k >= 0LL) && (12LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12)) || ((((((((((((((((((12 <= k && 13U <= z) && i <= 2147483646) && (-13LL + (long long )j) + (long long )k >= 0LL) && (-12LL + (long long )i) + (long long )k >= 0LL) && (-12LL - (long long )i) + (long long )k >= 0LL) && (-11LL - (long long )j) + (long long )k >= 0LL) && (11LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11)) || (((((((((((((((((((((((((((((((26 <= k && 27U <= z) && i <= 2147483646) && (-27LL + (long long )j) + (long long )k >= 0LL) && (-26LL + (long long )i) + (long long )k >= 0LL) && (-26LL - (long long )i) + (long long )k >= 0LL) && (-25LL - (long long )j) + (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23) && k != 24) && k != 25)) || (((((((((((((((((11 <= k && 12U <= z) && i <= 2147483646) && (-12LL + (long long )j) + (long long )k >= 0LL) && (-11LL + (long long )i) + (long long )k >= 0LL) && (-11LL - (long long )i) + (long long )k >= 0LL) && (-10LL - (long long )j) + (long long )k >= 0LL) && (10LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10)) || (((((((((((((((((((((((((((((((25 <= k && 26U <= z) && i <= 2147483646) && (-26LL + (long long )j) + (long long )k >= 0LL) && (-25LL + (long long )i) + (long long )k >= 0LL) && (-25LL - (long long )i) + (long long )k >= 0LL) && (-24LL - (long long )j) + (long long )k >= 0LL) && (24LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23) && k != 24)) [2024-02-07 14:44:28,537 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )y >= 0LL) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 14:44:28,538 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )z >= 0LL) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL) [2024-02-07 14:44:28,538 INFO L76 edCorrectnessWitness]: Location invariant after [L687-L687] ((((((((((((((2147483647LL + (long long )i) + (long long )j >= 0LL) && ((2147483647LL + (long long )j) + (long long )k >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((2147483646LL - (long long )i) + (long long )j >= 0LL)) && ((2147483649LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((2147483646LL + (long long )j) - (long long )k >= 0LL)) && ((2147483649LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((2147483648LL - (long long )i) - (long long )j >= 0LL)) && ((2147483648LL - (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && (1 == j)) && (j == 1) [2024-02-07 14:44:28,538 INFO L76 edCorrectnessWitness]: Location invariant before [L687-L687] ((((((((((((4294967296LL + (long long )i) + (long long )j >= 0LL) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL) [2024-02-07 14:44:28,538 INFO L76 edCorrectnessWitness]: Location invariant after [L687-L687] ((((((((((((4294967296LL + (long long )i) + (long long )j >= 0LL) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL) [2024-02-07 14:44:28,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:44:28,852 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2024-02-07 14:44:28,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:44:28,874 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:44:28,902 WARN L423 MainDispatcher]: Unable to annotate unsigned int with a witness entry [2024-02-07 14:44:28,903 WARN L423 MainDispatcher]: Unable to annotate x=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 14:44:28,903 WARN L423 MainDispatcher]: Unable to annotate y=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 14:44:28,903 WARN L423 MainDispatcher]: Unable to annotate z=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 14:44:28,903 WARN L423 MainDispatcher]: Unable to annotate i with a witness entry [2024-02-07 14:44:28,904 WARN L423 MainDispatcher]: Unable to annotate j=1 with a witness entry [2024-02-07 14:44:28,904 WARN L423 MainDispatcher]: Unable to annotate k=1 with a witness entry Start Parsing Local Start Parsing Local [2024-02-07 14:44:29,017 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] Start Parsing Local Start Parsing Local [2024-02-07 14:44:29,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:44:29,059 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:44:29,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29 WrapperNode [2024-02-07 14:44:29,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:44:29,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:44:29,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:44:29,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:44:29,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,095 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-02-07 14:44:29,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:44:29,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:44:29,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:44:29,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:44:29,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,148 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-02-07 14:44:29,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:44:29,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:44:29,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:44:29,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:44:29,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (1/1) ... [2024-02-07 14:44:29,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:44:29,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:44:29,254 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 14:44:29,297 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 14:44:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-07 14:44:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-07 14:44:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:44:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:44:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:44:29,315 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 14:44:29,426 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:44:29,428 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:44:29,768 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:44:29,768 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:44:29,827 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:44:29,827 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-07 14:44:29,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:44:29 BoogieIcfgContainer [2024-02-07 14:44:29,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:44:29,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:44:29,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:44:29,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:44:29,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:44:26" (1/4) ... [2024-02-07 14:44:29,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@940a8c7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:44:29, skipping insertion in model container [2024-02-07 14:44:29,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:44:28" (2/4) ... [2024-02-07 14:44:29,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@940a8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:44:29, skipping insertion in model container [2024-02-07 14:44:29,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:44:29" (3/4) ... [2024-02-07 14:44:29,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@940a8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:44:29, skipping insertion in model container [2024-02-07 14:44:29,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:44:29" (4/4) ... [2024-02-07 14:44:29,837 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-02-07 14:44:29,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:44:29,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-02-07 14:44:29,853 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:44:29,938 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:44:29,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 27 transitions, 58 flow [2024-02-07 14:44:30,001 INFO L124 PetriNetUnfolderBase]: 5/29 cut-off events. [2024-02-07 14:44:30,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:44:30,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 5/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 61 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-02-07 14:44:30,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 27 transitions, 58 flow [2024-02-07 14:44:30,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 27 transitions, 58 flow [2024-02-07 14:44:30,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:44:30,026 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;@1fabddc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:44:30,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-02-07 14:44:30,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:44:30,035 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-02-07 14:44:30,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:44:30,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:30,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:44:30,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-02-07 14:44:30,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2085740643, now seen corresponding path program 1 times [2024-02-07 14:44:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:30,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795523868] [2024-02-07 14:44:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:30,511 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 14:44:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:30,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795523868] [2024-02-07 14:44:30,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795523868] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:30,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:30,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:44:30,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45752029] [2024-02-07 14:44:30,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:44:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:44:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:44:30,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-02-07 14:44:30,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 27 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 14:44:30,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:30,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-02-07 14:44:30,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:30,698 INFO L124 PetriNetUnfolderBase]: 52/147 cut-off events. [2024-02-07 14:44:30,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:44:30,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 147 events. 52/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 625 event pairs, 20 based on Foata normal form. 12/141 useless extension candidates. Maximal degree in co-relation 246. Up to 74 conditions per place. [2024-02-07 14:44:30,703 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 26 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2024-02-07 14:44:30,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 38 transitions, 142 flow [2024-02-07 14:44:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:44:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:44:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2024-02-07 14:44:30,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-02-07 14:44:30,714 INFO L175 Difference]: Start difference. First operand has 25 places, 27 transitions, 58 flow. Second operand 4 states and 68 transitions. [2024-02-07 14:44:30,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 38 transitions, 142 flow [2024-02-07 14:44:30,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:44:30,718 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 94 flow [2024-02-07 14:44:30,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2024-02-07 14:44:30,721 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2024-02-07 14:44:30,722 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 94 flow [2024-02-07 14:44:30,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 14:44:30,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:30,723 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-02-07 14:44:30,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:44:30,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-02-07 14:44:30,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2085733343, now seen corresponding path program 1 times [2024-02-07 14:44:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892661669] [2024-02-07 14:44:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:30,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:30,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:44:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:30,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:44:30,771 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:44:30,773 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-02-07 14:44:30,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 11 remaining) [2024-02-07 14:44:30,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 11 remaining) [2024-02-07 14:44:30,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 11 remaining) [2024-02-07 14:44:30,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 11 remaining) [2024-02-07 14:44:30,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-02-07 14:44:30,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 11 remaining) [2024-02-07 14:44:30,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 11 remaining) [2024-02-07 14:44:30,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 11 remaining) [2024-02-07 14:44:30,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 11 remaining) [2024-02-07 14:44:30,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-02-07 14:44:30,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:44:30,777 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-02-07 14:44:30,781 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-07 14:44:30,781 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-02-07 14:44:30,916 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:44:30,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 49 transitions, 108 flow [2024-02-07 14:44:30,944 INFO L124 PetriNetUnfolderBase]: 10/54 cut-off events. [2024-02-07 14:44:30,944 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 14:44:30,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 10/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 45. Up to 3 conditions per place. [2024-02-07 14:44:30,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 49 transitions, 108 flow [2024-02-07 14:44:30,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 49 transitions, 108 flow [2024-02-07 14:44:30,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:44:30,958 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;@1fabddc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:44:30,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-02-07 14:44:30,966 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:44:30,966 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-02-07 14:44:30,966 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:44:30,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:30,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:44:30,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 14:44:30,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash -758990845, now seen corresponding path program 1 times [2024-02-07 14:44:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:30,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663932840] [2024-02-07 14:44:30,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:31,066 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 14:44:31,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:31,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663932840] [2024-02-07 14:44:31,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663932840] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:31,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:31,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:44:31,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172506461] [2024-02-07 14:44:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:31,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:44:31,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:31,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:44:31,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:44:31,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-02-07 14:44:31,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 49 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:44:31,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:31,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-02-07 14:44:31,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:31,452 INFO L124 PetriNetUnfolderBase]: 847/1728 cut-off events. [2024-02-07 14:44:31,453 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-02-07 14:44:31,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3006 conditions, 1728 events. 847/1728 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11184 event pairs, 298 based on Foata normal form. 129/1497 useless extension candidates. Maximal degree in co-relation 1216. Up to 799 conditions per place. [2024-02-07 14:44:31,462 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 53 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-02-07 14:44:31,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 77 transitions, 290 flow [2024-02-07 14:44:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:44:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:44:31,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-02-07 14:44:31,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7448979591836735 [2024-02-07 14:44:31,464 INFO L175 Difference]: Start difference. First operand has 44 places, 49 transitions, 108 flow. Second operand 4 states and 146 transitions. [2024-02-07 14:44:31,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 77 transitions, 290 flow [2024-02-07 14:44:31,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:44:31,466 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 142 flow [2024-02-07 14:44:31,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2024-02-07 14:44:31,467 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2024-02-07 14:44:31,467 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 142 flow [2024-02-07 14:44:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:44:31,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:31,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:31,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:44:31,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 14:44:31,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:31,468 INFO L85 PathProgramCache]: Analyzing trace with hash 754215174, now seen corresponding path program 1 times [2024-02-07 14:44:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:31,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343303106] [2024-02-07 14:44:31,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:31,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:31,990 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 14:44:31,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:31,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343303106] [2024-02-07 14:44:31,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343303106] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:31,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:31,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 14:44:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653938231] [2024-02-07 14:44:31,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:31,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 14:44:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:31,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 14:44:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 14:44:32,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-02-07 14:44:32,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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 14:44:32,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:32,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-02-07 14:44:32,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:32,644 INFO L124 PetriNetUnfolderBase]: 1495/2666 cut-off events. [2024-02-07 14:44:32,645 INFO L125 PetriNetUnfolderBase]: For 223/226 co-relation queries the response was YES. [2024-02-07 14:44:32,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5501 conditions, 2666 events. 1495/2666 cut-off events. For 223/226 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16302 event pairs, 334 based on Foata normal form. 0/2222 useless extension candidates. Maximal degree in co-relation 4336. Up to 838 conditions per place. [2024-02-07 14:44:32,660 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 89 selfloop transitions, 9 changer transitions 0/116 dead transitions. [2024-02-07 14:44:32,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 116 transitions, 508 flow [2024-02-07 14:44:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 14:44:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 14:44:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-02-07 14:44:32,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-02-07 14:44:32,663 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 142 flow. Second operand 6 states and 207 transitions. [2024-02-07 14:44:32,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 116 transitions, 508 flow [2024-02-07 14:44:32,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 116 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:44:32,667 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 197 flow [2024-02-07 14:44:32,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=197, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-02-07 14:44:32,668 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2024-02-07 14:44:32,668 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 197 flow [2024-02-07 14:44:32,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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 14:44:32,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:32,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:32,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:44:32,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 14:44:32,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash 754215974, now seen corresponding path program 1 times [2024-02-07 14:44:32,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:32,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643588334] [2024-02-07 14:44:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:32,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:32,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:32,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:32,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643588334] [2024-02-07 14:44:32,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643588334] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-07 14:44:32,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822404260] [2024-02-07 14:44:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:32,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:44:32,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:44:32,836 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 14:44:32,859 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 14:44:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:32,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 14:44:32,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:44:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:33,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 14:44:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:33,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822404260] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 14:44:33,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-07 14:44:33,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-02-07 14:44:33,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718283629] [2024-02-07 14:44:33,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-07 14:44:33,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-02-07 14:44:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:33,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-02-07 14:44:33,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-02-07 14:44:33,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-02-07 14:44:33,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 197 flow. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 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 14:44:33,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:33,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-02-07 14:44:33,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:34,586 INFO L124 PetriNetUnfolderBase]: 2482/4232 cut-off events. [2024-02-07 14:44:34,586 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-02-07 14:44:34,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9582 conditions, 4232 events. 2482/4232 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 26243 event pairs, 280 based on Foata normal form. 294/4100 useless extension candidates. Maximal degree in co-relation 8698. Up to 646 conditions per place. [2024-02-07 14:44:34,611 INFO L140 encePairwiseOnDemand]: 36/49 looper letters, 236 selfloop transitions, 22 changer transitions 0/276 dead transitions. [2024-02-07 14:44:34,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 276 transitions, 1286 flow [2024-02-07 14:44:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-02-07 14:44:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-02-07 14:44:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 580 transitions. [2024-02-07 14:44:34,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6575963718820862 [2024-02-07 14:44:34,615 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 197 flow. Second operand 18 states and 580 transitions. [2024-02-07 14:44:34,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 276 transitions, 1286 flow [2024-02-07 14:44:34,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 276 transitions, 1282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:44:34,628 INFO L231 Difference]: Finished difference. Result has 82 places, 69 transitions, 359 flow [2024-02-07 14:44:34,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=359, PETRI_PLACES=82, PETRI_TRANSITIONS=69} [2024-02-07 14:44:34,629 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 38 predicate places. [2024-02-07 14:44:34,629 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 69 transitions, 359 flow [2024-02-07 14:44:34,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 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 14:44:34,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:34,630 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-02-07 14:44:34,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-02-07 14:44:34,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:44:34,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 14:44:34,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1068761316, now seen corresponding path program 1 times [2024-02-07 14:44:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872147767] [2024-02-07 14:44:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:34,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:34,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:44:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:34,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:44:34,878 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:44:34,878 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-02-07 14:44:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 16 remaining) [2024-02-07 14:44:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 16 remaining) [2024-02-07 14:44:34,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 16 remaining) [2024-02-07 14:44:34,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 16 remaining) [2024-02-07 14:44:34,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2024-02-07 14:44:34,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 16 remaining) [2024-02-07 14:44:34,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 16 remaining) [2024-02-07 14:44:34,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 16 remaining) [2024-02-07 14:44:34,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 16 remaining) [2024-02-07 14:44:34,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2024-02-07 14:44:34,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 14:44:34,881 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-02-07 14:44:34,882 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-07 14:44:34,882 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-02-07 14:44:34,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:44:34,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 71 transitions, 160 flow [2024-02-07 14:44:34,983 INFO L124 PetriNetUnfolderBase]: 15/79 cut-off events. [2024-02-07 14:44:34,984 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-07 14:44:34,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 79 events. 15/79 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 250 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 66. Up to 4 conditions per place. [2024-02-07 14:44:34,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 71 transitions, 160 flow [2024-02-07 14:44:34,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 71 transitions, 160 flow [2024-02-07 14:44:34,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:44:34,990 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;@1fabddc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:44:34,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-02-07 14:44:34,992 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:44:34,992 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-02-07 14:44:34,992 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:44:34,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:34,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:44:34,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 14:44:34,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:34,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1342060142, now seen corresponding path program 1 times [2024-02-07 14:44:34,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:34,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642839648] [2024-02-07 14:44:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:34,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:35,114 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 14:44:35,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:35,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642839648] [2024-02-07 14:44:35,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642839648] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:35,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:35,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:44:35,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507266237] [2024-02-07 14:44:35,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:35,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:44:35,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:44:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:44:35,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 71 [2024-02-07 14:44:35,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 71 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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 14:44:35,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:35,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 71 [2024-02-07 14:44:35,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:37,466 INFO L124 PetriNetUnfolderBase]: 8539/14688 cut-off events. [2024-02-07 14:44:37,466 INFO L125 PetriNetUnfolderBase]: For 846/846 co-relation queries the response was YES. [2024-02-07 14:44:37,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25964 conditions, 14688 events. 8539/14688 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 115194 event pairs, 3391 based on Foata normal form. 1394/12638 useless extension candidates. Maximal degree in co-relation 3309. Up to 7030 conditions per place. [2024-02-07 14:44:37,555 INFO L140 encePairwiseOnDemand]: 58/71 looper letters, 80 selfloop transitions, 5 changer transitions 0/116 dead transitions. [2024-02-07 14:44:37,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 116 transitions, 444 flow [2024-02-07 14:44:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:44:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:44:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-02-07 14:44:37,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7887323943661971 [2024-02-07 14:44:37,558 INFO L175 Difference]: Start difference. First operand has 63 places, 71 transitions, 160 flow. Second operand 4 states and 224 transitions. [2024-02-07 14:44:37,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 116 transitions, 444 flow [2024-02-07 14:44:37,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 116 transitions, 438 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-02-07 14:44:37,560 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 190 flow [2024-02-07 14:44:37,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2024-02-07 14:44:37,561 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-02-07 14:44:37,561 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 190 flow [2024-02-07 14:44:37,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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 14:44:37,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:37,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:37,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 14:44:37,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 14:44:37,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:37,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1229586833, now seen corresponding path program 1 times [2024-02-07 14:44:37,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:37,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169967002] [2024-02-07 14:44:37,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:37,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:37,820 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 14:44:37,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169967002] [2024-02-07 14:44:37,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169967002] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:37,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:37,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 14:44:37,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391456772] [2024-02-07 14:44:37,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:37,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 14:44:37,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:37,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 14:44:37,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 14:44:37,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 71 [2024-02-07 14:44:37,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 14:44:37,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:37,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 71 [2024-02-07 14:44:37,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:40,901 INFO L124 PetriNetUnfolderBase]: 14980/23549 cut-off events. [2024-02-07 14:44:40,902 INFO L125 PetriNetUnfolderBase]: For 1891/1978 co-relation queries the response was YES. [2024-02-07 14:44:40,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46719 conditions, 23549 events. 14980/23549 cut-off events. For 1891/1978 co-relation queries the response was YES. Maximal size of possible extension queue 1194. Compared 173975 event pairs, 3340 based on Foata normal form. 0/18898 useless extension candidates. Maximal degree in co-relation 36947. Up to 7375 conditions per place. [2024-02-07 14:44:41,216 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 134 selfloop transitions, 9 changer transitions 0/173 dead transitions. [2024-02-07 14:44:41,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 173 transitions, 738 flow [2024-02-07 14:44:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 14:44:41,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 14:44:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 324 transitions. [2024-02-07 14:44:41,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7605633802816901 [2024-02-07 14:44:41,218 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 190 flow. Second operand 6 states and 324 transitions. [2024-02-07 14:44:41,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 173 transitions, 738 flow [2024-02-07 14:44:41,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 173 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:44:41,243 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 245 flow [2024-02-07 14:44:41,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-02-07 14:44:41,245 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 12 predicate places. [2024-02-07 14:44:41,245 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 245 flow [2024-02-07 14:44:41,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 14:44:41,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:41,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:41,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 14:44:41,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 14:44:41,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1229587633, now seen corresponding path program 1 times [2024-02-07 14:44:41,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:41,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613243100] [2024-02-07 14:44:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:41,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:41,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613243100] [2024-02-07 14:44:41,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613243100] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-07 14:44:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128630815] [2024-02-07 14:44:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:41,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:44:41,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:44:41,333 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 14:44:41,360 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 14:44:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:41,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 14:44:41,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:44:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:41,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 14:44:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:44:41,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128630815] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 14:44:41,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-07 14:44:41,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-02-07 14:44:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484321547] [2024-02-07 14:44:41,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-07 14:44:41,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-02-07 14:44:41,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-02-07 14:44:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-02-07 14:44:41,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 71 [2024-02-07 14:44:41,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 245 flow. Second operand has 14 states, 14 states have (on average 30.285714285714285) internal successors, (424), 14 states have internal predecessors, (424), 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 14:44:41,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:41,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 71 [2024-02-07 14:44:41,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:46,218 INFO L124 PetriNetUnfolderBase]: 24676/35422 cut-off events. [2024-02-07 14:44:46,219 INFO L125 PetriNetUnfolderBase]: For 4023/4023 co-relation queries the response was YES. [2024-02-07 14:44:46,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77745 conditions, 35422 events. 24676/35422 cut-off events. For 4023/4023 co-relation queries the response was YES. Maximal size of possible extension queue 1426. Compared 232794 event pairs, 2785 based on Foata normal form. 1806/32161 useless extension candidates. Maximal degree in co-relation 71424. Up to 5602 conditions per place. [2024-02-07 14:44:46,451 INFO L140 encePairwiseOnDemand]: 58/71 looper letters, 389 selfloop transitions, 22 changer transitions 0/441 dead transitions. [2024-02-07 14:44:46,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 441 transitions, 2008 flow [2024-02-07 14:44:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-02-07 14:44:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-02-07 14:44:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 949 transitions. [2024-02-07 14:44:46,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7425665101721439 [2024-02-07 14:44:46,454 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 245 flow. Second operand 18 states and 949 transitions. [2024-02-07 14:44:46,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 441 transitions, 2008 flow [2024-02-07 14:44:46,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 441 transitions, 2004 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:44:46,512 INFO L231 Difference]: Finished difference. Result has 101 places, 90 transitions, 407 flow [2024-02-07 14:44:46,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=407, PETRI_PLACES=101, PETRI_TRANSITIONS=90} [2024-02-07 14:44:46,513 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 38 predicate places. [2024-02-07 14:44:46,513 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 90 transitions, 407 flow [2024-02-07 14:44:46,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 30.285714285714285) internal successors, (424), 14 states have internal predecessors, (424), 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 14:44:46,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:46,514 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:46,527 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 14:44:46,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-02-07 14:44:46,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 14:44:46,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1373911772, now seen corresponding path program 1 times [2024-02-07 14:44:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:46,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713784658] [2024-02-07 14:44:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:44:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-07 14:44:46,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:44:46,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713784658] [2024-02-07 14:44:46,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713784658] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:44:46,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:44:46,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:44:46,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046757331] [2024-02-07 14:44:46,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:44:46,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:44:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:44:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:44:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:44:46,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 71 [2024-02-07 14:44:46,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 90 transitions, 407 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 14:44:46,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:44:46,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 71 [2024-02-07 14:44:46,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:44:57,581 INFO L124 PetriNetUnfolderBase]: 40511/68551 cut-off events. [2024-02-07 14:44:57,582 INFO L125 PetriNetUnfolderBase]: For 80284/81106 co-relation queries the response was YES. [2024-02-07 14:44:58,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161894 conditions, 68551 events. 40511/68551 cut-off events. For 80284/81106 co-relation queries the response was YES. Maximal size of possible extension queue 3197. Compared 638829 event pairs, 15608 based on Foata normal form. 1218/59319 useless extension candidates. Maximal degree in co-relation 152197. Up to 33245 conditions per place. [2024-02-07 14:44:58,395 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 141 selfloop transitions, 5 changer transitions 0/179 dead transitions. [2024-02-07 14:44:58,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 179 transitions, 1209 flow [2024-02-07 14:44:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:44:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:44:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-02-07 14:44:58,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7429577464788732 [2024-02-07 14:44:58,397 INFO L175 Difference]: Start difference. First operand has 101 places, 90 transitions, 407 flow. Second operand 4 states and 211 transitions. [2024-02-07 14:44:58,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 179 transitions, 1209 flow [2024-02-07 14:44:58,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 179 transitions, 1080 flow, removed 48 selfloop flow, removed 2 redundant places. [2024-02-07 14:44:58,716 INFO L231 Difference]: Finished difference. Result has 104 places, 94 transitions, 404 flow [2024-02-07 14:44:58,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=404, PETRI_PLACES=104, PETRI_TRANSITIONS=94} [2024-02-07 14:44:58,717 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 41 predicate places. [2024-02-07 14:44:58,717 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 94 transitions, 404 flow [2024-02-07 14:44:58,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 14:44:58,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:44:58,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:44:58,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 14:44:58,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 14:44:58,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:44:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash -536498580, now seen corresponding path program 1 times [2024-02-07 14:44:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:44:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130498609] [2024-02-07 14:44:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:44:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:44:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:58,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:44:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:44:58,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:44:58,735 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:44:58,736 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 21 remaining) [2024-02-07 14:44:58,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 21 remaining) [2024-02-07 14:44:58,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 21 remaining) [2024-02-07 14:44:58,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 21 remaining) [2024-02-07 14:44:58,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (15 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 21 remaining) [2024-02-07 14:44:58,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 21 remaining) [2024-02-07 14:44:58,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 21 remaining) [2024-02-07 14:44:58,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 21 remaining) [2024-02-07 14:44:58,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 14:44:58,739 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-07 14:44:58,745 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-02-07 14:44:58,745 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:44:58,766 INFO L503 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-02-07 14:44:58,766 INFO L504 ceAbstractionStarter]: WitnessConsidered=4 [2024-02-07 14:44:58,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:44:58 BasicIcfg [2024-02-07 14:44:58,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:44:58,768 INFO L158 Benchmark]: Toolchain (without parser) took 30416.16ms. Allocated memory was 155.2MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 105.2MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-02-07 14:44:58,768 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:44:58,768 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:44:58,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.54ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 54.9MB in the end (delta: 50.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-02-07 14:44:58,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 155.2MB. Free memory was 54.9MB in the beginning and 52.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:44:58,769 INFO L158 Benchmark]: Boogie Preprocessor took 97.82ms. Allocated memory is still 155.2MB. Free memory was 52.9MB in the beginning and 50.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:44:58,769 INFO L158 Benchmark]: RCFGBuilder took 632.34ms. Allocated memory is still 155.2MB. Free memory was 50.1MB in the beginning and 89.2MB in the end (delta: -39.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-02-07 14:44:58,769 INFO L158 Benchmark]: TraceAbstraction took 28936.48ms. Allocated memory was 155.2MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 88.3MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-02-07 14:44:58,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.54ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 54.9MB in the end (delta: 50.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 155.2MB. Free memory was 54.9MB in the beginning and 52.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.82ms. Allocated memory is still 155.2MB. Free memory was 52.9MB in the beginning and 50.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.34ms. Allocated memory is still 155.2MB. Free memory was 50.1MB in the beginning and 89.2MB in the end (delta: -39.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 28936.48ms. Allocated memory was 155.2MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 88.3MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 pthread_t t; VAL [t={3:0}] [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, t={3:0}] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [arg={0:0}, arg={0:0}, i=0, j=1, k=1] [L688] COND FALSE 1 !(i