./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_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_37-traces-ex-4_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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_37-traces-ex-4_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_37-traces-ex-4_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-59af5db-m [2024-02-02 09:17:47,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:47,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:47,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:47,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:47,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:47,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:47,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:47,276 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:47,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:47,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:47,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:47,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:47,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:47,282 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:47,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:47,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:47,282 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:47,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:47,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:47,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:47,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:47,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:47,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:47,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:47,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:47,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:47,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:47,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:47,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:47,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:47,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:47,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:47,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:47,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:47,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:47,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:47,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:47,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:47,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:47,288 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:47,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:47,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:47,290 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:47,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:47,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:47,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:47,548 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:47,548 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:47,549 INFO L431 ainManager$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_37-traces-ex-4_true.yml/witness.yml [2024-02-02 09:17:47,668 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:47,668 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:47,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-02-02 09:17:48,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:48,907 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:48,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-02-02 09:17:48,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1f1597e/8d49b5dda946468fa2afe98f9fb39420/FLAG47cd2e75b [2024-02-02 09:17:48,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd1f1597e/8d49b5dda946468fa2afe98f9fb39420 [2024-02-02 09:17:48,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:48,941 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:48,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:48,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:48,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:48,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:47" (1/2) ... [2024-02-02 09:17:48,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61db5bd5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:48, skipping insertion in model container [2024-02-02 09:17:48,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:47" (1/2) ... [2024-02-02 09:17:48,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c2d7490 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:48, skipping insertion in model container [2024-02-02 09:17:48,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:48" (2/2) ... [2024-02-02 09:17:48,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61db5bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:48, skipping insertion in model container [2024-02-02 09:17:48,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:48" (2/2) ... [2024-02-02 09:17:48,950 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:48,982 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:48,984 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] g == 2 [2024-02-02 09:17:48,984 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-02-02 09:17:48,984 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-02-02 09:17:48,984 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 2) && (g == 2) [2024-02-02 09:17:48,985 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] g == 2 [2024-02-02 09:17:48,985 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 1) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (g == 2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] (g == 2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] g == 2 [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,986 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 1) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:48,987 INFO L101 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-02-02 09:17:48,987 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 1) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:49,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:49,237 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_37-traces-ex-4_true.i[1088,1101] [2024-02-02 09:17:49,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:49,362 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:49,372 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_37-traces-ex-4_true.i[1088,1101] [2024-02-02 09:17:49,373 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry 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 [2024-02-02 09:17:49,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:49,453 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:49,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49 WrapperNode [2024-02-02 09:17:49,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:49,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:49,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:49,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:49,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,497 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-02-02 09:17:49,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:49,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:49,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:49,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:49,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,521 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-02-02 09:17:49,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:49,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:49,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:49,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:49,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (1/1) ... [2024-02-02 09:17:49,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:49,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:17:49,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:17:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:17:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:17:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:49,646 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:17:49,740 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:49,742 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:17:49,922 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:17:49,924 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:17:50,036 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:17:50,037 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:17:50,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:50 BoogieIcfgContainer [2024-02-02 09:17:50,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:17:50,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:17:50,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:17:50,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:17:50,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:47" (1/4) ... [2024-02-02 09:17:50,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ff19c6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:50, skipping insertion in model container [2024-02-02 09:17:50,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:48" (2/4) ... [2024-02-02 09:17:50,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ff19c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:50, skipping insertion in model container [2024-02-02 09:17:50,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:49" (3/4) ... [2024-02-02 09:17:50,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ff19c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:50, skipping insertion in model container [2024-02-02 09:17:50,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:50" (4/4) ... [2024-02-02 09:17:50,048 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2024-02-02 09:17:50,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:17:50,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-02-02 09:17:50,061 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:17:50,114 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:17:50,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 120 flow [2024-02-02 09:17:50,185 INFO L124 PetriNetUnfolderBase]: 1/57 cut-off events. [2024-02-02 09:17:50,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:50,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-02-02 09:17:50,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 120 flow [2024-02-02 09:17:50,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 57 transitions, 117 flow [2024-02-02 09:17:50,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:17:50,209 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;@5e8dd4ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:17:50,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-02-02 09:17:50,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:17:50,211 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:17:50,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:50,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:50,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:17:50,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:50,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash 8004, now seen corresponding path program 1 times [2024-02-02 09:17:50,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386317417] [2024-02-02 09:17:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:50,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:50,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:50,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386317417] [2024-02-02 09:17:50,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386317417] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:50,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:50,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:17:50,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123733998] [2024-02-02 09:17:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:50,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:50,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:50,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-02-02 09:17:50,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:50,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:50,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-02-02 09:17:50,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:50,630 INFO L124 PetriNetUnfolderBase]: 183/655 cut-off events. [2024-02-02 09:17:50,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:50,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 655 events. 183/655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3908 event pairs, 115 based on Foata normal form. 46/668 useless extension candidates. Maximal degree in co-relation 1103. Up to 323 conditions per place. [2024-02-02 09:17:50,635 INFO L140 encePairwiseOnDemand]: 43/58 looper letters, 38 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-02-02 09:17:50,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 229 flow [2024-02-02 09:17:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-02-02 09:17:50,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7298850574712644 [2024-02-02 09:17:50,645 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 117 flow. Second operand 3 states and 127 transitions. [2024-02-02 09:17:50,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 229 flow [2024-02-02 09:17:50,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:50,649 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 168 flow [2024-02-02 09:17:50,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-02-02 09:17:50,652 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2024-02-02 09:17:50,653 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 168 flow [2024-02-02 09:17:50,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:50,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:50,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:17:50,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:17:50,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:50,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash 238750993, now seen corresponding path program 1 times [2024-02-02 09:17:50,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:50,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659801580] [2024-02-02 09:17:50,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:50,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:50,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659801580] [2024-02-02 09:17:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659801580] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:50,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946434824] [2024-02-02 09:17:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:50,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:50,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:50,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 58 [2024-02-02 09:17:50,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:50,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:50,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 58 [2024-02-02 09:17:50,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:50,933 INFO L124 PetriNetUnfolderBase]: 117/519 cut-off events. [2024-02-02 09:17:50,933 INFO L125 PetriNetUnfolderBase]: For 116/117 co-relation queries the response was YES. [2024-02-02 09:17:50,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 519 events. 117/519 cut-off events. For 116/117 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3133 event pairs, 78 based on Foata normal form. 9/474 useless extension candidates. Maximal degree in co-relation 933. Up to 248 conditions per place. [2024-02-02 09:17:50,937 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 28 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-02-02 09:17:50,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 242 flow [2024-02-02 09:17:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-02-02 09:17:50,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7198275862068966 [2024-02-02 09:17:50,939 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 168 flow. Second operand 4 states and 167 transitions. [2024-02-02 09:17:50,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 242 flow [2024-02-02 09:17:50,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:50,942 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 154 flow [2024-02-02 09:17:50,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2024-02-02 09:17:50,943 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-02-02 09:17:50,943 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 154 flow [2024-02-02 09:17:50,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:50,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:50,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:50,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:17:50,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:50,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 165266375, now seen corresponding path program 1 times [2024-02-02 09:17:50,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:50,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664746472] [2024-02-02 09:17:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:50,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:50,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664746472] [2024-02-02 09:17:50,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664746472] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:50,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:50,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:50,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787891407] [2024-02-02 09:17:50,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:50,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:50,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:50,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:51,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-02-02 09:17:51,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:51,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-02-02 09:17:51,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:51,125 INFO L124 PetriNetUnfolderBase]: 205/655 cut-off events. [2024-02-02 09:17:51,125 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-02-02 09:17:51,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 655 events. 205/655 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3711 event pairs, 27 based on Foata normal form. 12/640 useless extension candidates. Maximal degree in co-relation 1324. Up to 254 conditions per place. [2024-02-02 09:17:51,128 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 50 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-02-02 09:17:51,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 73 transitions, 310 flow [2024-02-02 09:17:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-02-02 09:17:51,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431034482758621 [2024-02-02 09:17:51,130 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 154 flow. Second operand 4 states and 126 transitions. [2024-02-02 09:17:51,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 73 transitions, 310 flow [2024-02-02 09:17:51,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:51,132 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 159 flow [2024-02-02 09:17:51,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-02-02 09:17:51,133 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2024-02-02 09:17:51,133 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 159 flow [2024-02-02 09:17:51,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:51,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:51,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:17:51,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:51,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1018757866, now seen corresponding path program 1 times [2024-02-02 09:17:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:51,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860603912] [2024-02-02 09:17:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:51,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860603912] [2024-02-02 09:17:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860603912] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:51,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:51,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:51,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871986858] [2024-02-02 09:17:51,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:51,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:51,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 58 [2024-02-02 09:17:51,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:51,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 58 [2024-02-02 09:17:51,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:51,312 INFO L124 PetriNetUnfolderBase]: 164/498 cut-off events. [2024-02-02 09:17:51,312 INFO L125 PetriNetUnfolderBase]: For 188/189 co-relation queries the response was YES. [2024-02-02 09:17:51,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 498 events. 164/498 cut-off events. For 188/189 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2399 event pairs, 19 based on Foata normal form. 56/545 useless extension candidates. Maximal degree in co-relation 1058. Up to 254 conditions per place. [2024-02-02 09:17:51,315 INFO L140 encePairwiseOnDemand]: 48/58 looper letters, 37 selfloop transitions, 3 changer transitions 8/64 dead transitions. [2024-02-02 09:17:51,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 269 flow [2024-02-02 09:17:51,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-02-02 09:17:51,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6163793103448276 [2024-02-02 09:17:51,317 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 159 flow. Second operand 4 states and 143 transitions. [2024-02-02 09:17:51,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 269 flow [2024-02-02 09:17:51,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 64 transitions, 261 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:51,319 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 119 flow [2024-02-02 09:17:51,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-02-02 09:17:51,319 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-02-02 09:17:51,320 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 119 flow [2024-02-02 09:17:51,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:51,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:51,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:17:51,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:51,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:51,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1428755024, now seen corresponding path program 1 times [2024-02-02 09:17:51,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:51,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764005653] [2024-02-02 09:17:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:51,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764005653] [2024-02-02 09:17:51,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764005653] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:51,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:51,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:51,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877425310] [2024-02-02 09:17:51,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:51,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:51,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:51,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:51,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:51,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 58 [2024-02-02 09:17:51,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:51,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 58 [2024-02-02 09:17:51,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:51,472 INFO L124 PetriNetUnfolderBase]: 127/388 cut-off events. [2024-02-02 09:17:51,472 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-02-02 09:17:51,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 388 events. 127/388 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1750 event pairs, 79 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 833. Up to 169 conditions per place. [2024-02-02 09:17:51,474 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 37 selfloop transitions, 7 changer transitions 6/61 dead transitions. [2024-02-02 09:17:51,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 61 transitions, 267 flow [2024-02-02 09:17:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:51,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-02-02 09:17:51,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5586206896551724 [2024-02-02 09:17:51,475 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 119 flow. Second operand 5 states and 162 transitions. [2024-02-02 09:17:51,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 61 transitions, 267 flow [2024-02-02 09:17:51,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 61 transitions, 257 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:51,477 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 129 flow [2024-02-02 09:17:51,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-02-02 09:17:51,478 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -9 predicate places. [2024-02-02 09:17:51,478 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 129 flow [2024-02-02 09:17:51,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:51,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:51,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:17:51,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:51,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:51,479 INFO L85 PathProgramCache]: Analyzing trace with hash 319138910, now seen corresponding path program 1 times [2024-02-02 09:17:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:51,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13269933] [2024-02-02 09:17:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:51,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:51,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13269933] [2024-02-02 09:17:51,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13269933] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:51,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:51,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247709550] [2024-02-02 09:17:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:51,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:51,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58 [2024-02-02 09:17:51,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:51,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58 [2024-02-02 09:17:51,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:51,566 INFO L124 PetriNetUnfolderBase]: 38/195 cut-off events. [2024-02-02 09:17:51,566 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-02-02 09:17:51,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 195 events. 38/195 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 767 event pairs, 9 based on Foata normal form. 7/194 useless extension candidates. Maximal degree in co-relation 365. Up to 69 conditions per place. [2024-02-02 09:17:51,567 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 17 selfloop transitions, 5 changer transitions 6/49 dead transitions. [2024-02-02 09:17:51,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 197 flow [2024-02-02 09:17:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:51,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-02-02 09:17:51,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8103448275862069 [2024-02-02 09:17:51,568 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 129 flow. Second operand 3 states and 141 transitions. [2024-02-02 09:17:51,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 197 flow [2024-02-02 09:17:51,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 175 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:51,570 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2024-02-02 09:17:51,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-02-02 09:17:51,571 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2024-02-02 09:17:51,571 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2024-02-02 09:17:51,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:51,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:51,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:17:51,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-02 09:17:51,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:51,572 INFO L85 PathProgramCache]: Analyzing trace with hash -667752471, now seen corresponding path program 1 times [2024-02-02 09:17:51,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:51,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706695482] [2024-02-02 09:17:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:51,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706695482] [2024-02-02 09:17:51,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706695482] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:51,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:51,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:51,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899506421] [2024-02-02 09:17:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:51,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:51,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:51,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:51,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:51,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58 [2024-02-02 09:17:51,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:51,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58 [2024-02-02 09:17:51,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:51,685 INFO L124 PetriNetUnfolderBase]: 14/92 cut-off events. [2024-02-02 09:17:51,704 INFO L125 PetriNetUnfolderBase]: For 29/30 co-relation queries the response was YES. [2024-02-02 09:17:51,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 92 events. 14/92 cut-off events. For 29/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 137 event pairs, 2 based on Foata normal form. 6/96 useless extension candidates. Maximal degree in co-relation 168. Up to 41 conditions per place. [2024-02-02 09:17:51,704 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-02-02 09:17:51,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 39 transitions, 149 flow [2024-02-02 09:17:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2024-02-02 09:17:51,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7327586206896551 [2024-02-02 09:17:51,706 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 4 states and 170 transitions. [2024-02-02 09:17:51,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 39 transitions, 149 flow [2024-02-02 09:17:51,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 125 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:51,707 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-02-02 09:17:51,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-02-02 09:17:51,707 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -15 predicate places. [2024-02-02 09:17:51,707 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-02-02 09:17:51,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:51,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 25 remaining) [2024-02-02 09:17:51,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 25 remaining) [2024-02-02 09:17:51,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 25 remaining) [2024-02-02 09:17:51,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (21 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 25 remaining) [2024-02-02 09:17:51,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 25 remaining) [2024-02-02 09:17:51,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 25 remaining) [2024-02-02 09:17:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 25 remaining) [2024-02-02 09:17:51,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 25 remaining) [2024-02-02 09:17:51,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:17:51,714 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:51,718 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:17:51,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:17:51,721 INFO L503 ceAbstractionStarter]: Automizer considered 14 witness invariants [2024-02-02 09:17:51,721 INFO L504 ceAbstractionStarter]: WitnessConsidered=14 [2024-02-02 09:17:51,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:17:51 BasicIcfg [2024-02-02 09:17:51,722 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:17:51,722 INFO L158 Benchmark]: Toolchain (without parser) took 2781.79ms. Allocated memory was 167.8MB in the beginning and 270.5MB in the end (delta: 102.8MB). Free memory was 92.5MB in the beginning and 234.2MB in the end (delta: -141.7MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,723 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:51,723 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 167.8MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 155.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:51,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.92ms. Allocated memory is still 167.8MB. Free memory was 92.3MB in the beginning and 126.6MB in the end (delta: -34.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 124.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,724 INFO L158 Benchmark]: Boogie Preprocessor took 32.45ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 122.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,724 INFO L158 Benchmark]: RCFGBuilder took 505.91ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 94.3MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,724 INFO L158 Benchmark]: TraceAbstraction took 1680.70ms. Allocated memory was 167.8MB in the beginning and 270.5MB in the end (delta: 102.8MB). Free memory was 93.7MB in the beginning and 234.2MB in the end (delta: -140.5MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2024-02-02 09:17:51,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 167.8MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 155.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.92ms. Allocated memory is still 167.8MB. Free memory was 92.3MB in the beginning and 126.6MB in the end (delta: -34.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 124.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.45ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 122.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.91ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 94.3MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1680.70ms. Allocated memory was 167.8MB in the beginning and 270.5MB in the end (delta: 102.8MB). Free memory was 93.7MB in the beginning and 234.2MB in the end (delta: -140.5MB). Peak memory consumption was 99.8MB. 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: 700]: 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: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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: 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: 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: 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, 91 locations, 25 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: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 419 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 554 IncrementalHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 50 mSDtfsCounter, 554 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=1, InterpolantAutomatonStates: 27, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:17:51,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE