./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.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-8857f20-m [2024-01-29 22:55:19,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:19,605 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:19,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:19,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:19,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:19,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:19,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:19,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:19,641 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:19,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:19,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:19,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:19,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:19,644 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:19,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:19,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:19,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:19,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:19,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:19,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:19,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:19,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:19,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:19,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:19,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:19,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:19,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:19,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:19,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:19,650 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:19,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:19,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:19,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:19,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:19,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:19,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:19,916 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:19,916 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:19,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-01-29 22:55:20,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:20,011 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:20,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-01-29 22:55:20,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:21,233 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:21,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-01-29 22:55:21,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/727402dcd/748e669e3386449a92f7a0c2834efc8f/FLAG3e63123a9 [2024-01-29 22:55:21,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/727402dcd/748e669e3386449a92f7a0c2834efc8f [2024-01-29 22:55:21,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:21,263 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:21,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:21,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:21,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:21,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:20" (1/2) ... [2024-01-29 22:55:21,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdfbf00 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:21, skipping insertion in model container [2024-01-29 22:55:21,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:20" (1/2) ... [2024-01-29 22:55:21,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@483b551d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:21, skipping insertion in model container [2024-01-29 22:55:21,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:21" (2/2) ... [2024-01-29 22:55:21,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdfbf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21, skipping insertion in model container [2024-01-29 22:55:21,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:21" (2/2) ... [2024-01-29 22:55:21,273 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:21,309 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (0 <= g) && (g <= 127) [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] 0 <= g [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (0 <= g) && (g <= 42) [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] ((0 <= g) && (g <= 127)) && ((g == 0 || g == 2) || g == 42) [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] ((0 <= g) && (g <= 127)) && (g % 2 == 0) [2024-01-29 22:55:21,312 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (0 <= g) && (g <= 127) [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((0 <= g) && (g <= 127)) && (g % 2 == 0) [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] 0 <= g [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (0 <= g) && (g <= 42) [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((0 <= g) && (g <= 127)) && ((g == 0 || g == 2) || g == 42) [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 22:55:21,313 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] ((0 <= g) && ((unsigned long )arg == 0UL)) && ((g == 0 || g == 2) || g == 42) [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g) && (g <= 127) [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g) && (g % 2 == 0) [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g) && (g <= 42) [2024-01-29 22:55:21,314 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 42 [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 42 [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (0 <= g) && (g <= 127) [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((0 <= g) && (g <= 127)) && (g % 2 == 0) [2024-01-29 22:55:21,315 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((0 <= g) && (g <= 127)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:21,316 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g [2024-01-29 22:55:21,316 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (0 <= g) && (g <= 42) [2024-01-29 22:55:21,316 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((0 <= g) && (g <= 127)) && ((g == 0 || g == 2) || g == 42) [2024-01-29 22:55:21,316 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:21,316 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 42 [2024-01-29 22:55:21,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:21,477 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2024-01-29 22:55:21,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:21,584 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:21,592 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:55:21,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:21,730 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:21,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21 WrapperNode [2024-01-29 22:55:21,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:21,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:21,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:21,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:21,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,782 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-01-29 22:55:21,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:21,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:21,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:21,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:21,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,804 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 1, 5, 5, 5]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 5, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0, 0]. [2024-01-29 22:55:21,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:21,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:21,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:21,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:21,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (1/1) ... [2024-01-29 22:55:21,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:21,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:21,858 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) [2024-01-29 22:55:21,859 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 [2024-01-29 22:55:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 22:55:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:21,908 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:55:21,998 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:22,000 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:22,234 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:22,234 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:22,357 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:22,358 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:22,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:22 BoogieIcfgContainer [2024-01-29 22:55:22,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:22,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:22,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:22,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:22,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:20" (1/4) ... [2024-01-29 22:55:22,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97abfd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:21" (2/4) ... [2024-01-29 22:55:22,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:21" (3/4) ... [2024-01-29 22:55:22,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b97abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:22" (4/4) ... [2024-01-29 22:55:22,380 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-01-29 22:55:22,394 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:22,394 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-01-29 22:55:22,395 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:22,459 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:55:22,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 96 transitions, 196 flow [2024-01-29 22:55:22,533 INFO L124 PetriNetUnfolderBase]: 1/95 cut-off events. [2024-01-29 22:55:22,535 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:22,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 1/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 154 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-01-29 22:55:22,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 96 transitions, 196 flow [2024-01-29 22:55:22,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 95 transitions, 193 flow [2024-01-29 22:55:22,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:22,568 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;@4708aef7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:22,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-01-29 22:55:22,573 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:22,573 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:22,573 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:22,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:22,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:22,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:22,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash 10187, now seen corresponding path program 1 times [2024-01-29 22:55:22,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:22,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372523034] [2024-01-29 22:55:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:22,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:22,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372523034] [2024-01-29 22:55:22,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372523034] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:22,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:22,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415526736] [2024-01-29 22:55:22,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:22,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:22,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:22,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 96 [2024-01-29 22:55:22,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 22:55:22,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:22,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 96 [2024-01-29 22:55:22,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:23,027 INFO L124 PetriNetUnfolderBase]: 281/924 cut-off events. [2024-01-29 22:55:23,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:23,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1536 conditions, 924 events. 281/924 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6523 event pairs, 221 based on Foata normal form. 69/938 useless extension candidates. Maximal degree in co-relation 1525. Up to 588 conditions per place. [2024-01-29 22:55:23,038 INFO L140 encePairwiseOnDemand]: 72/96 looper letters, 49 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-01-29 22:55:23,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 307 flow [2024-01-29 22:55:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-01-29 22:55:23,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2024-01-29 22:55:23,054 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 193 flow. Second operand 3 states and 220 transitions. [2024-01-29 22:55:23,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 307 flow [2024-01-29 22:55:23,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:23,062 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 243 flow [2024-01-29 22:55:23,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2024-01-29 22:55:23,066 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 1 predicate places. [2024-01-29 22:55:23,067 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 243 flow [2024-01-29 22:55:23,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 22:55:23,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:23,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:55:23,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:23,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:23,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash 303897180, now seen corresponding path program 1 times [2024-01-29 22:55:23,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:23,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138921187] [2024-01-29 22:55:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:23,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:23,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138921187] [2024-01-29 22:55:23,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138921187] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:23,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:23,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:23,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140329392] [2024-01-29 22:55:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:23,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:23,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:23,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 96 [2024-01-29 22:55:23,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 243 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2024-01-29 22:55:23,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:23,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 96 [2024-01-29 22:55:23,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:23,352 INFO L124 PetriNetUnfolderBase]: 72/487 cut-off events. [2024-01-29 22:55:23,353 INFO L125 PetriNetUnfolderBase]: For 18/40 co-relation queries the response was YES. [2024-01-29 22:55:23,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 487 events. 72/487 cut-off events. For 18/40 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2695 event pairs, 42 based on Foata normal form. 17/416 useless extension candidates. Maximal degree in co-relation 709. Up to 153 conditions per place. [2024-01-29 22:55:23,357 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 28 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-29 22:55:23,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 316 flow [2024-01-29 22:55:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-01-29 22:55:23,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8307291666666666 [2024-01-29 22:55:23,362 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 243 flow. Second operand 4 states and 319 transitions. [2024-01-29 22:55:23,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 316 flow [2024-01-29 22:55:23,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:23,367 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 238 flow [2024-01-29 22:55:23,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-01-29 22:55:23,368 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-01-29 22:55:23,368 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 238 flow [2024-01-29 22:55:23,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2024-01-29 22:55:23,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:23,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:23,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:23,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:23,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:23,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1938129414, now seen corresponding path program 1 times [2024-01-29 22:55:23,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:23,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047703098] [2024-01-29 22:55:23,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:23,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:23,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:23,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047703098] [2024-01-29 22:55:23,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047703098] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:23,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:23,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644942496] [2024-01-29 22:55:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:23,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:23,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:23,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 96 [2024-01-29 22:55:23,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-01-29 22:55:23,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:23,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 96 [2024-01-29 22:55:23,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:23,773 INFO L124 PetriNetUnfolderBase]: 360/1054 cut-off events. [2024-01-29 22:55:23,773 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-01-29 22:55:23,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 1054 events. 360/1054 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7262 event pairs, 248 based on Foata normal form. 0/999 useless extension candidates. Maximal degree in co-relation 2047. Up to 720 conditions per place. [2024-01-29 22:55:23,778 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 65 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2024-01-29 22:55:23,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 106 transitions, 410 flow [2024-01-29 22:55:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2024-01-29 22:55:23,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5755208333333334 [2024-01-29 22:55:23,779 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 238 flow. Second operand 4 states and 221 transitions. [2024-01-29 22:55:23,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 106 transitions, 410 flow [2024-01-29 22:55:23,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 106 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:23,782 INFO L231 Difference]: Finished difference. Result has 101 places, 94 transitions, 265 flow [2024-01-29 22:55:23,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=101, PETRI_TRANSITIONS=94} [2024-01-29 22:55:23,784 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 3 predicate places. [2024-01-29 22:55:23,784 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 94 transitions, 265 flow [2024-01-29 22:55:23,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-01-29 22:55:23,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:23,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:23,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:23,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:23,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:23,785 INFO L85 PathProgramCache]: Analyzing trace with hash 162504449, now seen corresponding path program 1 times [2024-01-29 22:55:23,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:23,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879523134] [2024-01-29 22:55:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:23,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879523134] [2024-01-29 22:55:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879523134] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655826934] [2024-01-29 22:55:23,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:23,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:23,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:23,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 96 [2024-01-29 22:55:23,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 94 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-01-29 22:55:23,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:23,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 96 [2024-01-29 22:55:23,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,035 INFO L124 PetriNetUnfolderBase]: 266/961 cut-off events. [2024-01-29 22:55:24,035 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-01-29 22:55:24,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 961 events. 266/961 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6837 event pairs, 163 based on Foata normal form. 84/975 useless extension candidates. Maximal degree in co-relation 1751. Up to 478 conditions per place. [2024-01-29 22:55:24,039 INFO L140 encePairwiseOnDemand]: 77/96 looper letters, 47 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2024-01-29 22:55:24,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 97 transitions, 357 flow [2024-01-29 22:55:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-01-29 22:55:24,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2024-01-29 22:55:24,041 INFO L175 Difference]: Start difference. First operand has 101 places, 94 transitions, 265 flow. Second operand 3 states and 213 transitions. [2024-01-29 22:55:24,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 97 transitions, 357 flow [2024-01-29 22:55:24,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 97 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:24,045 INFO L231 Difference]: Finished difference. Result has 94 places, 86 transitions, 259 flow [2024-01-29 22:55:24,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2024-01-29 22:55:24,046 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -4 predicate places. [2024-01-29 22:55:24,046 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 259 flow [2024-01-29 22:55:24,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-01-29 22:55:24,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:24,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:24,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:24,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1084877731, now seen corresponding path program 1 times [2024-01-29 22:55:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015004777] [2024-01-29 22:55:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015004777] [2024-01-29 22:55:24,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015004777] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:24,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444662806] [2024-01-29 22:55:24,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:24,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:24,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:24,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 96 [2024-01-29 22:55:24,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2024-01-29 22:55:24,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:24,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 96 [2024-01-29 22:55:24,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,241 INFO L124 PetriNetUnfolderBase]: 154/604 cut-off events. [2024-01-29 22:55:24,241 INFO L125 PetriNetUnfolderBase]: For 269/271 co-relation queries the response was YES. [2024-01-29 22:55:24,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 604 events. 154/604 cut-off events. For 269/271 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3477 event pairs, 39 based on Foata normal form. 162/742 useless extension candidates. Maximal degree in co-relation 1176. Up to 210 conditions per place. [2024-01-29 22:55:24,245 INFO L140 encePairwiseOnDemand]: 80/96 looper letters, 41 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2024-01-29 22:55:24,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 325 flow [2024-01-29 22:55:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-01-29 22:55:24,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6840277777777778 [2024-01-29 22:55:24,246 INFO L175 Difference]: Start difference. First operand has 94 places, 86 transitions, 259 flow. Second operand 3 states and 197 transitions. [2024-01-29 22:55:24,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 325 flow [2024-01-29 22:55:24,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 87 transitions, 315 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:24,251 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 218 flow [2024-01-29 22:55:24,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2024-01-29 22:55:24,251 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -13 predicate places. [2024-01-29 22:55:24,251 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 218 flow [2024-01-29 22:55:24,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2024-01-29 22:55:24,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:24,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:24,252 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:24,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,253 INFO L85 PathProgramCache]: Analyzing trace with hash -728528308, now seen corresponding path program 1 times [2024-01-29 22:55:24,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77434762] [2024-01-29 22:55:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77434762] [2024-01-29 22:55:24,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77434762] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230050466] [2024-01-29 22:55:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:24,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 96 [2024-01-29 22:55:24,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-01-29 22:55:24,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:24,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 96 [2024-01-29 22:55:24,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,497 INFO L124 PetriNetUnfolderBase]: 241/796 cut-off events. [2024-01-29 22:55:24,498 INFO L125 PetriNetUnfolderBase]: For 224/227 co-relation queries the response was YES. [2024-01-29 22:55:24,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 796 events. 241/796 cut-off events. For 224/227 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4498 event pairs, 90 based on Foata normal form. 32/791 useless extension candidates. Maximal degree in co-relation 1638. Up to 327 conditions per place. [2024-01-29 22:55:24,501 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 60 selfloop transitions, 5 changer transitions 1/96 dead transitions. [2024-01-29 22:55:24,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 394 flow [2024-01-29 22:55:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-01-29 22:55:24,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5078125 [2024-01-29 22:55:24,503 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 218 flow. Second operand 4 states and 195 transitions. [2024-01-29 22:55:24,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 394 flow [2024-01-29 22:55:24,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 96 transitions, 385 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:24,505 INFO L231 Difference]: Finished difference. Result has 87 places, 75 transitions, 228 flow [2024-01-29 22:55:24,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=87, PETRI_TRANSITIONS=75} [2024-01-29 22:55:24,506 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -11 predicate places. [2024-01-29 22:55:24,506 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 75 transitions, 228 flow [2024-01-29 22:55:24,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-01-29 22:55:24,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:24,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:24,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:24,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash 229982621, now seen corresponding path program 1 times [2024-01-29 22:55:24,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050061429] [2024-01-29 22:55:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050061429] [2024-01-29 22:55:24,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050061429] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:24,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486328799] [2024-01-29 22:55:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:24,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:24,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 96 [2024-01-29 22:55:24,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 75 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:24,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:24,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 96 [2024-01-29 22:55:24,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,751 INFO L124 PetriNetUnfolderBase]: 185/625 cut-off events. [2024-01-29 22:55:24,751 INFO L125 PetriNetUnfolderBase]: For 223/231 co-relation queries the response was YES. [2024-01-29 22:55:24,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 625 events. 185/625 cut-off events. For 223/231 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3384 event pairs, 75 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 1313. Up to 270 conditions per place. [2024-01-29 22:55:24,754 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 37 selfloop transitions, 6 changer transitions 21/107 dead transitions. [2024-01-29 22:55:24,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 107 transitions, 439 flow [2024-01-29 22:55:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 299 transitions. [2024-01-29 22:55:24,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6229166666666667 [2024-01-29 22:55:24,755 INFO L175 Difference]: Start difference. First operand has 87 places, 75 transitions, 228 flow. Second operand 5 states and 299 transitions. [2024-01-29 22:55:24,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 107 transitions, 439 flow [2024-01-29 22:55:24,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 107 transitions, 427 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:24,757 INFO L231 Difference]: Finished difference. Result has 92 places, 76 transitions, 252 flow [2024-01-29 22:55:24,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=92, PETRI_TRANSITIONS=76} [2024-01-29 22:55:24,758 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -6 predicate places. [2024-01-29 22:55:24,758 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 76 transitions, 252 flow [2024-01-29 22:55:24,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:24,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:24,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:24,773 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:24,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2008050298, now seen corresponding path program 1 times [2024-01-29 22:55:24,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849244747] [2024-01-29 22:55:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849244747] [2024-01-29 22:55:24,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849244747] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:24,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997057275] [2024-01-29 22:55:24,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:24,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:24,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:24,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 22:55:24,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 76 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2024-01-29 22:55:24,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:24,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 22:55:24,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,911 INFO L124 PetriNetUnfolderBase]: 53/405 cut-off events. [2024-01-29 22:55:24,911 INFO L125 PetriNetUnfolderBase]: For 213/215 co-relation queries the response was YES. [2024-01-29 22:55:24,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 405 events. 53/405 cut-off events. For 213/215 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1968 event pairs, 21 based on Foata normal form. 7/404 useless extension candidates. Maximal degree in co-relation 746. Up to 106 conditions per place. [2024-01-29 22:55:24,913 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 24 selfloop transitions, 4 changer transitions 6/82 dead transitions. [2024-01-29 22:55:24,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 82 transitions, 341 flow [2024-01-29 22:55:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-01-29 22:55:24,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8993055555555556 [2024-01-29 22:55:24,914 INFO L175 Difference]: Start difference. First operand has 92 places, 76 transitions, 252 flow. Second operand 3 states and 259 transitions. [2024-01-29 22:55:24,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 82 transitions, 341 flow [2024-01-29 22:55:24,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 82 transitions, 320 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:24,915 INFO L231 Difference]: Finished difference. Result has 86 places, 71 transitions, 230 flow [2024-01-29 22:55:24,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=86, PETRI_TRANSITIONS=71} [2024-01-29 22:55:24,918 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -12 predicate places. [2024-01-29 22:55:24,918 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 71 transitions, 230 flow [2024-01-29 22:55:24,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2024-01-29 22:55:24,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:24,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:24,918 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:24,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1277403822, now seen corresponding path program 1 times [2024-01-29 22:55:24,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993591609] [2024-01-29 22:55:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993591609] [2024-01-29 22:55:24,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993591609] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:24,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964956994] [2024-01-29 22:55:24,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:24,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:24,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:25,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 96 [2024-01-29 22:55:25,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 71 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:55:25,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 96 [2024-01-29 22:55:25,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,154 INFO L124 PetriNetUnfolderBase]: 130/612 cut-off events. [2024-01-29 22:55:25,154 INFO L125 PetriNetUnfolderBase]: For 343/347 co-relation queries the response was YES. [2024-01-29 22:55:25,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 612 events. 130/612 cut-off events. For 343/347 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3149 event pairs, 56 based on Foata normal form. 12/617 useless extension candidates. Maximal degree in co-relation 1277. Up to 229 conditions per place. [2024-01-29 22:55:25,156 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 53 selfloop transitions, 6 changer transitions 4/94 dead transitions. [2024-01-29 22:55:25,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 94 transitions, 438 flow [2024-01-29 22:55:25,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-01-29 22:55:25,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.546875 [2024-01-29 22:55:25,157 INFO L175 Difference]: Start difference. First operand has 86 places, 71 transitions, 230 flow. Second operand 4 states and 210 transitions. [2024-01-29 22:55:25,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 94 transitions, 438 flow [2024-01-29 22:55:25,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 94 transitions, 417 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:25,160 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 261 flow [2024-01-29 22:55:25,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2024-01-29 22:55:25,160 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -10 predicate places. [2024-01-29 22:55:25,161 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 261 flow [2024-01-29 22:55:25,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:55:25,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:55:25,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:25,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2113331326, now seen corresponding path program 2 times [2024-01-29 22:55:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513856309] [2024-01-29 22:55:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513856309] [2024-01-29 22:55:25,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513856309] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:25,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2443008] [2024-01-29 22:55:25,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:25,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:25,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 96 [2024-01-29 22:55:25,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:55:25,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 96 [2024-01-29 22:55:25,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,372 INFO L124 PetriNetUnfolderBase]: 132/643 cut-off events. [2024-01-29 22:55:25,373 INFO L125 PetriNetUnfolderBase]: For 474/478 co-relation queries the response was YES. [2024-01-29 22:55:25,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 643 events. 132/643 cut-off events. For 474/478 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3357 event pairs, 50 based on Foata normal form. 12/645 useless extension candidates. Maximal degree in co-relation 1327. Up to 177 conditions per place. [2024-01-29 22:55:25,375 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 43 selfloop transitions, 7 changer transitions 9/90 dead transitions. [2024-01-29 22:55:25,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 419 flow [2024-01-29 22:55:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2024-01-29 22:55:25,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2024-01-29 22:55:25,376 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 261 flow. Second operand 4 states and 206 transitions. [2024-01-29 22:55:25,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 419 flow [2024-01-29 22:55:25,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 90 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:25,379 INFO L231 Difference]: Finished difference. Result has 87 places, 71 transitions, 265 flow [2024-01-29 22:55:25,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=87, PETRI_TRANSITIONS=71} [2024-01-29 22:55:25,379 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -11 predicate places. [2024-01-29 22:55:25,380 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 71 transitions, 265 flow [2024-01-29 22:55:25,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-29 22:55:25,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:55:25,380 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:25,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1177630211, now seen corresponding path program 1 times [2024-01-29 22:55:25,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415460192] [2024-01-29 22:55:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415460192] [2024-01-29 22:55:25,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415460192] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:25,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700375267] [2024-01-29 22:55:25,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:25,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:25,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:25,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 22:55:25,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 71 transitions, 265 flow. Second operand has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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) [2024-01-29 22:55:25,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 22:55:25,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,595 INFO L124 PetriNetUnfolderBase]: 34/332 cut-off events. [2024-01-29 22:55:25,596 INFO L125 PetriNetUnfolderBase]: For 342/346 co-relation queries the response was YES. [2024-01-29 22:55:25,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 332 events. 34/332 cut-off events. For 342/346 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1413 event pairs, 9 based on Foata normal form. 6/327 useless extension candidates. Maximal degree in co-relation 685. Up to 77 conditions per place. [2024-01-29 22:55:25,597 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 25 selfloop transitions, 5 changer transitions 2/79 dead transitions. [2024-01-29 22:55:25,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 79 transitions, 360 flow [2024-01-29 22:55:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2024-01-29 22:55:25,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2024-01-29 22:55:25,599 INFO L175 Difference]: Start difference. First operand has 87 places, 71 transitions, 265 flow. Second operand 4 states and 332 transitions. [2024-01-29 22:55:25,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 79 transitions, 360 flow [2024-01-29 22:55:25,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 79 transitions, 350 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:25,601 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 275 flow [2024-01-29 22:55:25,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=275, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2024-01-29 22:55:25,602 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -9 predicate places. [2024-01-29 22:55:25,603 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 275 flow [2024-01-29 22:55:25,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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) [2024-01-29 22:55:25,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 22:55:25,604 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:25,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash 591326609, now seen corresponding path program 1 times [2024-01-29 22:55:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784838275] [2024-01-29 22:55:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784838275] [2024-01-29 22:55:25,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784838275] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:25,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899771674] [2024-01-29 22:55:25,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:25,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:25,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 22:55:25,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 275 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-01-29 22:55:25,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 22:55:25,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,861 INFO L124 PetriNetUnfolderBase]: 33/359 cut-off events. [2024-01-29 22:55:25,862 INFO L125 PetriNetUnfolderBase]: For 311/316 co-relation queries the response was YES. [2024-01-29 22:55:25,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 359 events. 33/359 cut-off events. For 311/316 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1609 event pairs, 10 based on Foata normal form. 4/357 useless extension candidates. Maximal degree in co-relation 692. Up to 66 conditions per place. [2024-01-29 22:55:25,863 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 18 selfloop transitions, 5 changer transitions 9/76 dead transitions. [2024-01-29 22:55:25,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 76 transitions, 354 flow [2024-01-29 22:55:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2024-01-29 22:55:25,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8567708333333334 [2024-01-29 22:55:25,864 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 275 flow. Second operand 4 states and 329 transitions. [2024-01-29 22:55:25,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 76 transitions, 354 flow [2024-01-29 22:55:25,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 76 transitions, 334 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:25,866 INFO L231 Difference]: Finished difference. Result has 86 places, 65 transitions, 227 flow [2024-01-29 22:55:25,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=86, PETRI_TRANSITIONS=65} [2024-01-29 22:55:25,867 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -12 predicate places. [2024-01-29 22:55:25,867 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 65 transitions, 227 flow [2024-01-29 22:55:25,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-01-29 22:55:25,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 22:55:25,868 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 22:55:25,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 488760012, now seen corresponding path program 1 times [2024-01-29 22:55:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401163308] [2024-01-29 22:55:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:26,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401163308] [2024-01-29 22:55:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401163308] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:26,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:26,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 22:55:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134880324] [2024-01-29 22:55:26,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:55:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:26,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:55:26,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:55:26,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 22:55:26,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 65 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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) [2024-01-29 22:55:26,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:26,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 22:55:26,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:26,118 INFO L124 PetriNetUnfolderBase]: 8/121 cut-off events. [2024-01-29 22:55:26,118 INFO L125 PetriNetUnfolderBase]: For 102/104 co-relation queries the response was YES. [2024-01-29 22:55:26,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 121 events. 8/121 cut-off events. For 102/104 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 326 event pairs, 5 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 221. Up to 22 conditions per place. [2024-01-29 22:55:26,119 INFO L140 encePairwiseOnDemand]: 93/96 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-01-29 22:55:26,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 49 transitions, 210 flow [2024-01-29 22:55:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-01-29 22:55:26,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8307291666666666 [2024-01-29 22:55:26,121 INFO L175 Difference]: Start difference. First operand has 86 places, 65 transitions, 227 flow. Second operand 4 states and 319 transitions. [2024-01-29 22:55:26,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 49 transitions, 210 flow [2024-01-29 22:55:26,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 49 transitions, 186 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-01-29 22:55:26,122 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-01-29 22:55:26,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-01-29 22:55:26,123 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -35 predicate places. [2024-01-29 22:55:26,123 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-01-29 22:55:26,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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) [2024-01-29 22:55:26,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 56 remaining) [2024-01-29 22:55:26,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (43 of 56 remaining) [2024-01-29 22:55:26,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 56 remaining) [2024-01-29 22:55:26,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 56 remaining) [2024-01-29 22:55:26,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 56 remaining) [2024-01-29 22:55:26,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 56 remaining) [2024-01-29 22:55:26,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 56 remaining) [2024-01-29 22:55:26,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 56 remaining) [2024-01-29 22:55:26,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 56 remaining) [2024-01-29 22:55:26,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 56 remaining) [2024-01-29 22:55:26,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 56 remaining) [2024-01-29 22:55:26,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 56 remaining) [2024-01-29 22:55:26,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 56 remaining) [2024-01-29 22:55:26,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 56 remaining) [2024-01-29 22:55:26,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 56 remaining) [2024-01-29 22:55:26,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 56 remaining) [2024-01-29 22:55:26,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 56 remaining) [2024-01-29 22:55:26,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 56 remaining) [2024-01-29 22:55:26,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 56 remaining) [2024-01-29 22:55:26,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 56 remaining) [2024-01-29 22:55:26,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 56 remaining) [2024-01-29 22:55:26,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 56 remaining) [2024-01-29 22:55:26,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 56 remaining) [2024-01-29 22:55:26,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 22:55:26,137 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:26,142 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:26,142 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:26,147 INFO L503 ceAbstractionStarter]: Automizer considered 33 witness invariants [2024-01-29 22:55:26,147 INFO L504 ceAbstractionStarter]: WitnessConsidered=33 [2024-01-29 22:55:26,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:26 BasicIcfg [2024-01-29 22:55:26,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:26,149 INFO L158 Benchmark]: Toolchain (without parser) took 4886.38ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 123.2MB in the beginning and 117.5MB in the end (delta: 5.6MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,149 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:26,149 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 155.2MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:26,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 98.6MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.67ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,150 INFO L158 Benchmark]: Boogie Preprocessor took 47.73ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,150 INFO L158 Benchmark]: RCFGBuilder took 529.13ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 121.6MB in the end (delta: -27.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,151 INFO L158 Benchmark]: TraceAbstraction took 3786.65ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 120.9MB in the beginning and 117.5MB in the end (delta: 3.4MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,152 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 155.2MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 155.2MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 98.6MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.67ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.73ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.13ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 121.6MB in the end (delta: -27.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3786.65ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 120.9MB in the beginning and 117.5MB in the end (delta: 3.4MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 153 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1462 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 438 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1608 IncrementalHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 281 mSolverCounterUnsat, 289 mSDtfsCounter, 1608 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=11, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:55:26,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE