./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:16:38,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:38,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:38,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:38,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:38,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:38,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:38,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:38,292 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:38,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:38,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:38,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:38,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:38,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:38,298 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:38,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:38,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:38,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:38,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:38,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:38,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:38,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:38,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:38,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:38,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:38,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:38,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:38,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:38,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:38,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:38,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:38,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:38,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:38,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:38,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:38,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:38,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:38,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:38,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:38,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:38,315 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:38,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:38,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:38,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:38,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:38,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:38,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:38,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:38,634 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:38,635 INFO L431 ainManager$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 14:16:39,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:40,161 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:40,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-01-29 14:16:40,176 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b211d322d/6b52d8b02fe244d2908f420b978b5f41/FLAGea97f497e [2024-01-29 14:16:40,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b211d322d/6b52d8b02fe244d2908f420b978b5f41 [2024-01-29 14:16:40,192 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:40,193 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:40,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-01-29 14:16:40,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:40,287 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:40,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:40,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:40,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:40,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:40" (1/2) ... [2024-01-29 14:16:40,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeceef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:40, skipping insertion in model container [2024-01-29 14:16:40,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:40" (1/2) ... [2024-01-29 14:16:40,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55ceb2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:40, skipping insertion in model container [2024-01-29 14:16:40,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:40" (2/2) ... [2024-01-29 14:16:40,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeceef1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40, skipping insertion in model container [2024-01-29 14:16:40,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:40" (2/2) ... [2024-01-29 14:16:40,300 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:40,352 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g % 2 == 0 [2024-01-29 14:16:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g <= 127 [2024-01-29 14:16:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 0 || g == 2) || g == 42 [2024-01-29 14:16:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g <= 42 [2024-01-29 14:16:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 0 || g == 2) || g == 42 [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g % 2 == 0 [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 42 [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 127 [2024-01-29 14:16:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 42 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 42 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g % 2 == 0 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g <= 42 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g <= 127 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (g == 0 || g == 2) || g == 42 [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] 0 <= g [2024-01-29 14:16:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 42 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] 0 <= g [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g % 2 == 0 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g <= 127 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g <= 42 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (g == 0 || g == 2) || g == 42 [2024-01-29 14:16:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:40,399 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:40,582 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 14:16:40,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:40,773 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:40,784 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 14:16:40,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:40,882 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:40,882 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40 WrapperNode [2024-01-29 14:16:40,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:40,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:40,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:40,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:40,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:40,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:40,954 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-01-29 14:16:40,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:40,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:40,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:40,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:40,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:40,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:40,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:40,998 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 5, 1]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-29 14:16:40,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:41,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:41,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:41,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:41,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (1/1) ... [2024-01-29 14:16:41,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:41,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:41,094 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 14:16:41,177 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 14:16:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:16:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:16:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 14:16:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:16:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:16:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:41,198 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 14:16:41,348 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:41,350 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:41,561 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:41,561 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:41,747 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:41,747 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:16:41,748 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:41 BoogieIcfgContainer [2024-01-29 14:16:41,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:41,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:41,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:41,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:41,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:40" (1/4) ... [2024-01-29 14:16:41,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8288b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:41, skipping insertion in model container [2024-01-29 14:16:41,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:40" (2/4) ... [2024-01-29 14:16:41,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8288b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:41, skipping insertion in model container [2024-01-29 14:16:41,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:40" (3/4) ... [2024-01-29 14:16:41,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8288b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:41, skipping insertion in model container [2024-01-29 14:16:41,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:41" (4/4) ... [2024-01-29 14:16:41,756 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-01-29 14:16:41,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:41,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-01-29 14:16:41,772 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:41,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:16:41,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 96 transitions, 196 flow [2024-01-29 14:16:41,961 INFO L124 PetriNetUnfolderBase]: 1/95 cut-off events. [2024-01-29 14:16:41,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:41,966 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 14:16:41,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 96 transitions, 196 flow [2024-01-29 14:16:41,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 95 transitions, 193 flow [2024-01-29 14:16:41,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:41,992 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;@47a82591, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:41,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-01-29 14:16:41,995 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:41,995 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:41,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:41,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:41,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:41,996 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 14:16:42,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash 10187, now seen corresponding path program 1 times [2024-01-29 14:16:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:42,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271131794] [2024-01-29 14:16:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:42,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:42,223 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 14:16:42,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:42,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271131794] [2024-01-29 14:16:42,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271131794] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:42,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:42,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805268321] [2024-01-29 14:16:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:42,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:42,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:42,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:42,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:42,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 96 [2024-01-29 14:16:42,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 193 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 14:16:42,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:42,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 96 [2024-01-29 14:16:42,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:42,677 INFO L124 PetriNetUnfolderBase]: 229/852 cut-off events. [2024-01-29 14:16:42,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:42,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 852 events. 229/852 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6047 event pairs, 181 based on Foata normal form. 71/828 useless extension candidates. Maximal degree in co-relation 1347. Up to 482 conditions per place. [2024-01-29 14:16:42,689 INFO L140 encePairwiseOnDemand]: 71/96 looper letters, 47 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-01-29 14:16:42,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 303 flow [2024-01-29 14:16:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2024-01-29 14:16:42,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.78125 [2024-01-29 14:16:42,709 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 193 flow. Second operand 3 states and 225 transitions. [2024-01-29 14:16:42,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 303 flow [2024-01-29 14:16:42,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:42,717 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 245 flow [2024-01-29 14:16:42,719 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=245, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2024-01-29 14:16:42,723 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 1 predicate places. [2024-01-29 14:16:42,723 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 245 flow [2024-01-29 14:16:42,724 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 14:16:42,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:42,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:16:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:42,725 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 14:16:42,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 303897180, now seen corresponding path program 1 times [2024-01-29 14:16:42,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:42,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873887087] [2024-01-29 14:16:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:42,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:42,948 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 14:16:42,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:42,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873887087] [2024-01-29 14:16:42,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873887087] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:42,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:42,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8125979] [2024-01-29 14:16:42,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:42,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:42,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:42,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:43,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 96 [2024-01-29 14:16:43,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 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 14:16:43,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:43,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 96 [2024-01-29 14:16:43,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:43,136 INFO L124 PetriNetUnfolderBase]: 72/448 cut-off events. [2024-01-29 14:16:43,137 INFO L125 PetriNetUnfolderBase]: For 18/40 co-relation queries the response was YES. [2024-01-29 14:16:43,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 448 events. 72/448 cut-off events. For 18/40 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2400 event pairs, 42 based on Foata normal form. 57/459 useless extension candidates. Maximal degree in co-relation 673. Up to 153 conditions per place. [2024-01-29 14:16:43,139 INFO L140 encePairwiseOnDemand]: 86/96 looper letters, 28 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 14:16:43,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 95 transitions, 308 flow [2024-01-29 14:16:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 304 transitions. [2024-01-29 14:16:43,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2024-01-29 14:16:43,142 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 245 flow. Second operand 4 states and 304 transitions. [2024-01-29 14:16:43,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 95 transitions, 308 flow [2024-01-29 14:16:43,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 95 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:43,146 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 230 flow [2024-01-29 14:16:43,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2024-01-29 14:16:43,146 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -5 predicate places. [2024-01-29 14:16:43,147 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 230 flow [2024-01-29 14:16:43,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 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 14:16:43,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:43,147 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 14:16:43,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:43,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 14:16:43,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:43,148 INFO L85 PathProgramCache]: Analyzing trace with hash 162504449, now seen corresponding path program 1 times [2024-01-29 14:16:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326183211] [2024-01-29 14:16:43,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:43,190 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 14:16:43,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:43,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326183211] [2024-01-29 14:16:43,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326183211] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:43,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:43,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:43,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003690764] [2024-01-29 14:16:43,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:43,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:43,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 96 [2024-01-29 14:16:43,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 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 14:16:43,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:43,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 96 [2024-01-29 14:16:43,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:43,405 INFO L124 PetriNetUnfolderBase]: 208/797 cut-off events. [2024-01-29 14:16:43,405 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-01-29 14:16:43,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 797 events. 208/797 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5423 event pairs, 121 based on Foata normal form. 76/820 useless extension candidates. Maximal degree in co-relation 1387. Up to 361 conditions per place. [2024-01-29 14:16:43,410 INFO L140 encePairwiseOnDemand]: 79/96 looper letters, 44 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-01-29 14:16:43,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 310 flow [2024-01-29 14:16:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-01-29 14:16:43,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7430555555555556 [2024-01-29 14:16:43,412 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 230 flow. Second operand 3 states and 214 transitions. [2024-01-29 14:16:43,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 310 flow [2024-01-29 14:16:43,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 89 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:43,415 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 215 flow [2024-01-29 14:16:43,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-01-29 14:16:43,416 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -13 predicate places. [2024-01-29 14:16:43,416 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 215 flow [2024-01-29 14:16:43,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 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 14:16:43,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:43,417 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 14:16:43,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:43,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 14:16:43,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1084877731, now seen corresponding path program 1 times [2024-01-29 14:16:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563135457] [2024-01-29 14:16:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:43,468 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 14:16:43,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:43,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563135457] [2024-01-29 14:16:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563135457] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:43,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210264712] [2024-01-29 14:16:43,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:43,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:43,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:43,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:43,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 96 [2024-01-29 14:16:43,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 14:16:43,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:43,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 96 [2024-01-29 14:16:43,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:43,627 INFO L124 PetriNetUnfolderBase]: 129/507 cut-off events. [2024-01-29 14:16:43,627 INFO L125 PetriNetUnfolderBase]: For 215/218 co-relation queries the response was YES. [2024-01-29 14:16:43,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 507 events. 129/507 cut-off events. For 215/218 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2759 event pairs, 36 based on Foata normal form. 129/615 useless extension candidates. Maximal degree in co-relation 935. Up to 168 conditions per place. [2024-01-29 14:16:43,630 INFO L140 encePairwiseOnDemand]: 80/96 looper letters, 36 selfloop transitions, 3 changer transitions 1/79 dead transitions. [2024-01-29 14:16:43,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 79 transitions, 273 flow [2024-01-29 14:16:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-01-29 14:16:43,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-01-29 14:16:43,632 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 215 flow. Second operand 3 states and 200 transitions. [2024-01-29 14:16:43,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 79 transitions, 273 flow [2024-01-29 14:16:43,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 79 transitions, 265 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:43,635 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 176 flow [2024-01-29 14:16:43,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2024-01-29 14:16:43,636 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -22 predicate places. [2024-01-29 14:16:43,636 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 176 flow [2024-01-29 14:16:43,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 14:16:43,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:43,637 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 14:16:43,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:43,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 14:16:43,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:43,638 INFO L85 PathProgramCache]: Analyzing trace with hash 229982621, now seen corresponding path program 1 times [2024-01-29 14:16:43,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585838089] [2024-01-29 14:16:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:43,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:43,744 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 14:16:43,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:43,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585838089] [2024-01-29 14:16:43,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585838089] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:43,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:43,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:43,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126850145] [2024-01-29 14:16:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:43,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:43,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:43,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:43,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:43,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 96 [2024-01-29 14:16:43,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:16:43,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:43,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 96 [2024-01-29 14:16:43,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:43,958 INFO L124 PetriNetUnfolderBase]: 151/538 cut-off events. [2024-01-29 14:16:43,958 INFO L125 PetriNetUnfolderBase]: For 155/162 co-relation queries the response was YES. [2024-01-29 14:16:43,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 538 events. 151/538 cut-off events. For 155/162 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2878 event pairs, 57 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 1038. Up to 207 conditions per place. [2024-01-29 14:16:43,961 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 32 selfloop transitions, 5 changer transitions 20/96 dead transitions. [2024-01-29 14:16:43,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 96 transitions, 359 flow [2024-01-29 14:16:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:43,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 303 transitions. [2024-01-29 14:16:43,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.63125 [2024-01-29 14:16:43,963 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 176 flow. Second operand 5 states and 303 transitions. [2024-01-29 14:16:43,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 96 transitions, 359 flow [2024-01-29 14:16:43,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 96 transitions, 350 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:43,969 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 198 flow [2024-01-29 14:16:43,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-01-29 14:16:43,972 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -16 predicate places. [2024-01-29 14:16:43,972 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 198 flow [2024-01-29 14:16:43,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:16:43,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:43,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:43,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:43,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 14:16:43,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:43,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1896976435, now seen corresponding path program 1 times [2024-01-29 14:16:43,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:43,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546596178] [2024-01-29 14:16:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:44,220 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 14:16:44,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:44,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546596178] [2024-01-29 14:16:44,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546596178] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:44,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:44,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:44,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418360924] [2024-01-29 14:16:44,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:44,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:44,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:44,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:44,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:44,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 14:16:44,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 14:16:44,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:44,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 14:16:44,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:44,294 INFO L124 PetriNetUnfolderBase]: 42/328 cut-off events. [2024-01-29 14:16:44,294 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-01-29 14:16:44,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 328 events. 42/328 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1356 event pairs, 16 based on Foata normal form. 8/329 useless extension candidates. Maximal degree in co-relation 547. Up to 67 conditions per place. [2024-01-29 14:16:44,295 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 15 selfloop transitions, 5 changer transitions 13/74 dead transitions. [2024-01-29 14:16:44,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 74 transitions, 284 flow [2024-01-29 14:16:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:44,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2024-01-29 14:16:44,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8697916666666666 [2024-01-29 14:16:44,297 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 198 flow. Second operand 4 states and 334 transitions. [2024-01-29 14:16:44,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 74 transitions, 284 flow [2024-01-29 14:16:44,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 74 transitions, 258 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-01-29 14:16:44,303 INFO L231 Difference]: Finished difference. Result has 76 places, 59 transitions, 152 flow [2024-01-29 14:16:44,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=76, PETRI_TRANSITIONS=59} [2024-01-29 14:16:44,306 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -22 predicate places. [2024-01-29 14:16:44,306 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 152 flow [2024-01-29 14:16:44,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 14:16:44,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:44,307 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 14:16:44,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:16:44,307 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 14:16:44,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:44,308 INFO L85 PathProgramCache]: Analyzing trace with hash -124008659, now seen corresponding path program 1 times [2024-01-29 14:16:44,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:44,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345402317] [2024-01-29 14:16:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:44,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:44,538 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 14:16:44,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:44,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345402317] [2024-01-29 14:16:44,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345402317] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:44,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:44,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458240337] [2024-01-29 14:16:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:44,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:44,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:44,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 14:16:44,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 152 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 14:16:44,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:44,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 14:16:44,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:44,594 INFO L124 PetriNetUnfolderBase]: 9/111 cut-off events. [2024-01-29 14:16:44,595 INFO L125 PetriNetUnfolderBase]: For 28/29 co-relation queries the response was YES. [2024-01-29 14:16:44,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 111 events. 9/111 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 174 event pairs, 1 based on Foata normal form. 4/112 useless extension candidates. Maximal degree in co-relation 180. Up to 22 conditions per place. [2024-01-29 14:16:44,596 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 17 selfloop transitions, 5 changer transitions 2/65 dead transitions. [2024-01-29 14:16:44,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 65 transitions, 222 flow [2024-01-29 14:16:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2024-01-29 14:16:44,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.859375 [2024-01-29 14:16:44,597 INFO L175 Difference]: Start difference. First operand has 76 places, 59 transitions, 152 flow. Second operand 4 states and 330 transitions. [2024-01-29 14:16:44,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 65 transitions, 222 flow [2024-01-29 14:16:44,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 203 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-01-29 14:16:44,600 INFO L231 Difference]: Finished difference. Result has 72 places, 60 transitions, 155 flow [2024-01-29 14:16:44,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=72, PETRI_TRANSITIONS=60} [2024-01-29 14:16:44,601 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -26 predicate places. [2024-01-29 14:16:44,601 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 60 transitions, 155 flow [2024-01-29 14:16:44,601 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 14:16:44,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:44,602 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 14:16:44,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:16:44,602 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 53 more)] === [2024-01-29 14:16:44,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1132796592, now seen corresponding path program 1 times [2024-01-29 14:16:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:44,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778993772] [2024-01-29 14:16:44,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:44,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:44,896 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 14:16:44,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:44,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778993772] [2024-01-29 14:16:44,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778993772] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:44,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:44,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:16:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165288397] [2024-01-29 14:16:44,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:44,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 14:16:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 14:16:44,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-29 14:16:44,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-01-29 14:16:44,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 155 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 14:16:44,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:44,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-01-29 14:16:44,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:44,929 INFO L124 PetriNetUnfolderBase]: 3/70 cut-off events. [2024-01-29 14:16:44,930 INFO L125 PetriNetUnfolderBase]: For 27/28 co-relation queries the response was YES. [2024-01-29 14:16:44,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 70 events. 3/70 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 3 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2024-01-29 14:16:44,930 INFO L140 encePairwiseOnDemand]: 93/96 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2024-01-29 14:16:44,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 44 transitions, 144 flow [2024-01-29 14:16:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-01-29 14:16:44,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8307291666666666 [2024-01-29 14:16:44,932 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 155 flow. Second operand 4 states and 319 transitions. [2024-01-29 14:16:44,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 44 transitions, 144 flow [2024-01-29 14:16:44,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:16:44,933 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-01-29 14:16:44,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-01-29 14:16:44,934 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2024-01-29 14:16:44,934 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-01-29 14:16:44,934 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 14:16:44,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 56 remaining) [2024-01-29 14:16:44,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 56 remaining) [2024-01-29 14:16:44,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 56 remaining) [2024-01-29 14:16:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 56 remaining) [2024-01-29 14:16:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 56 remaining) [2024-01-29 14:16:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 56 remaining) [2024-01-29 14:16:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 56 remaining) [2024-01-29 14:16:44,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (43 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 56 remaining) [2024-01-29 14:16:44,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 56 remaining) [2024-01-29 14:16:44,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 56 remaining) [2024-01-29 14:16:44,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 56 remaining) [2024-01-29 14:16:44,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 56 remaining) [2024-01-29 14:16:44,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 56 remaining) [2024-01-29 14:16:44,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 56 remaining) [2024-01-29 14:16:44,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 56 remaining) [2024-01-29 14:16:44,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 56 remaining) [2024-01-29 14:16:44,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 56 remaining) [2024-01-29 14:16:44,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 56 remaining) [2024-01-29 14:16:44,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 56 remaining) [2024-01-29 14:16:44,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 56 remaining) [2024-01-29 14:16:44,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 56 remaining) [2024-01-29 14:16:44,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 56 remaining) [2024-01-29 14:16:44,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 56 remaining) [2024-01-29 14:16:44,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 56 remaining) [2024-01-29 14:16:44,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 56 remaining) [2024-01-29 14:16:44,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 56 remaining) [2024-01-29 14:16:44,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 56 remaining) [2024-01-29 14:16:44,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 56 remaining) [2024-01-29 14:16:44,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 56 remaining) [2024-01-29 14:16:44,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 56 remaining) [2024-01-29 14:16:44,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 56 remaining) [2024-01-29 14:16:44,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:16:44,948 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:44,953 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:44,953 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:44,957 INFO L503 ceAbstractionStarter]: Automizer considered 33 witness invariants [2024-01-29 14:16:44,957 INFO L504 ceAbstractionStarter]: WitnessConsidered=33 [2024-01-29 14:16:44,958 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:44 BasicIcfg [2024-01-29 14:16:44,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:44,958 INFO L158 Benchmark]: Toolchain (without parser) took 4671.92ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 114.3MB in the beginning and 64.3MB in the end (delta: 50.1MB). Peak memory consumption was 120.4MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,959 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 151.0MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:44,959 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:44,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.60ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 89.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.55ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,960 INFO L158 Benchmark]: Boogie Preprocessor took 73.53ms. Allocated memory is still 151.0MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,960 INFO L158 Benchmark]: RCFGBuilder took 718.29ms. Allocated memory is still 151.0MB. Free memory was 85.6MB in the beginning and 85.7MB in the end (delta: -141.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,960 INFO L158 Benchmark]: TraceAbstraction took 3208.08ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 85.3MB in the beginning and 64.3MB in the end (delta: 21.0MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2024-01-29 14:16:44,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 151.0MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.60ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 89.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.55ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.53ms. Allocated memory is still 151.0MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 718.29ms. Allocated memory is still 151.0MB. Free memory was 85.6MB in the beginning and 85.7MB in the end (delta: -141.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3208.08ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 85.3MB in the beginning and 64.3MB in the end (delta: 21.0MB). Peak memory consumption was 94.4MB. 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: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 696 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 391 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 711 IncrementalHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 198 mSDtfsCounter, 711 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=1, InterpolantAutomatonStates: 30, 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, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 14:16:44,991 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