./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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/weaver/parallel-ticket-3.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.wvr.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-04 16:25:47,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:25:47,212 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:25:47,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:25:47,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:25:47,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:25:47,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:25:47,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:25:47,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:25:47,254 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:25:47,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:25:47,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:25:47,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:25:47,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:25:47,257 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:25:47,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:25:47,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:25:47,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:25:47,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:25:47,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:25:47,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:25:47,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:25:47,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:25:47,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:25:47,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:25:47,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:25:47,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:25:47,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:25:47,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:25:47,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:25:47,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:25:47,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:25:47,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:47,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:25:47,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:25:47,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:25:47,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:25:47,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:25:47,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:25:47,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:25:47,264 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:25:47,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:25:47,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:25:47,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:25:47,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:25:47,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:25:47,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:25:47,515 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:25:47,515 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:25:47,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.wvr.yml/witness.yml [2024-06-04 16:25:47,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:25:47,598 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:25:47,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-04 16:25:48,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:25:49,005 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:25:49,006 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-04 16:25:49,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c4a95cf/51f73f5294144da1929c29cfe0f95df9/FLAGe388c27af [2024-06-04 16:25:49,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c4a95cf/51f73f5294144da1929c29cfe0f95df9 [2024-06-04 16:25:49,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:25:49,027 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:25:49,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:49,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:25:49,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:25:49,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:47" (1/2) ... [2024-06-04 16:25:49,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765c3924 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:49, skipping insertion in model container [2024-06-04 16:25:49,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:47" (1/2) ... [2024-06-04 16:25:49,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74ddfe1d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:49, skipping insertion in model container [2024-06-04 16:25:49,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:49" (2/2) ... [2024-06-04 16:25:49,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765c3924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49, skipping insertion in model container [2024-06-04 16:25:49,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:49" (2/2) ... [2024-06-04 16:25:49,037 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:25:49,048 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:25:49,049 INFO L97 edCorrectnessWitness]: Location invariant before [L118-L118] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:49,050 INFO L97 edCorrectnessWitness]: Location invariant before [L117-L117] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:49,050 INFO L97 edCorrectnessWitness]: Location invariant before [L119-L119] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:49,050 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:25:49,050 INFO L106 edCorrectnessWitness]: ghost_update [L116-L116] multithreaded = 1; [2024-06-04 16:25:49,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:25:49,214 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:49,228 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 16:25:49,350 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:49,378 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:25:49,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49 WrapperNode [2024-06-04 16:25:49,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:49,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:49,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:25:49,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:25:49,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,449 INFO L138 Inliner]: procedures = 21, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 158 [2024-06-04 16:25:49,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:49,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:25:49,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:25:49,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:25:49,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,488 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-04 16:25:49,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:25:49,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:25:49,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:25:49,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:25:49,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (1/1) ... [2024-06-04 16:25:49,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:49,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:25:49,541 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) [2024-06-04 16:25:49,551 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 [2024-06-04 16:25:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:25:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 16:25:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 16:25:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 16:25:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 16:25:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 16:25:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 16:25:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:25:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 16:25:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 16:25:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:25:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:25:49,576 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:25:49,661 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:25:49,663 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:25:49,968 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:25:49,969 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:25:50,187 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:25:50,188 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 16:25:50,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:50 BoogieIcfgContainer [2024-06-04 16:25:50,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:25:50,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:25:50,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:25:50,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:25:50,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:47" (1/4) ... [2024-06-04 16:25:50,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c098f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:25:50, skipping insertion in model container [2024-06-04 16:25:50,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:25:49" (2/4) ... [2024-06-04 16:25:50,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c098f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:25:50, skipping insertion in model container [2024-06-04 16:25:50,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:49" (3/4) ... [2024-06-04 16:25:50,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c098f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:25:50, skipping insertion in model container [2024-06-04 16:25:50,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:50" (4/4) ... [2024-06-04 16:25:50,203 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-06-04 16:25:50,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:25:50,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-04 16:25:50,222 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:25:50,282 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-04 16:25:50,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 103 flow [2024-06-04 16:25:50,359 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-06-04 16:25:50,360 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-04 16:25:50,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-04 16:25:50,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 103 flow [2024-06-04 16:25:50,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-04 16:25:50,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:25:50,384 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;@4c191d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:25:50,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-04 16:25:50,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:25:50,388 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 16:25:50,388 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:25:50,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:50,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 16:25:50,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:50,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2147214457, now seen corresponding path program 1 times [2024-06-04 16:25:50,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:50,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934533202] [2024-06-04 16:25:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:50,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:50,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:50,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934533202] [2024-06-04 16:25:50,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934533202] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:50,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:50,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:25:50,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954195745] [2024-06-04 16:25:50,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:50,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:25:50,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:25:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:25:50,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-04 16:25:50,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-04 16:25:50,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:50,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-04 16:25:50,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:51,235 INFO L124 PetriNetUnfolderBase]: 1208/1845 cut-off events. [2024-06-04 16:25:51,236 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-06-04 16:25:51,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3748 conditions, 1845 events. 1208/1845 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8956 event pairs, 431 based on Foata normal form. 45/1863 useless extension candidates. Maximal degree in co-relation 3733. Up to 1448 conditions per place. [2024-06-04 16:25:51,256 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 38 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-06-04 16:25:51,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 186 flow [2024-06-04 16:25:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:25:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:25:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-06-04 16:25:51,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5772357723577236 [2024-06-04 16:25:51,271 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 71 transitions. [2024-06-04 16:25:51,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 186 flow [2024-06-04 16:25:51,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-04 16:25:51,280 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 91 flow [2024-06-04 16:25:51,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-06-04 16:25:51,286 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2024-06-04 16:25:51,286 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 91 flow [2024-06-04 16:25:51,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-06-04 16:25:51,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:51,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:51,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:25:51,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:51,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:51,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1541006464, now seen corresponding path program 1 times [2024-06-04 16:25:51,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:51,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590346646] [2024-06-04 16:25:51,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:51,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:51,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:51,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590346646] [2024-06-04 16:25:51,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590346646] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:51,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:51,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:25:51,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316475384] [2024-06-04 16:25:51,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:51,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:25:51,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:51,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:25:51,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:25:51,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 16:25:51,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-06-04 16:25:51,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:51,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 16:25:51,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:51,730 INFO L124 PetriNetUnfolderBase]: 961/1613 cut-off events. [2024-06-04 16:25:51,731 INFO L125 PetriNetUnfolderBase]: For 174/182 co-relation queries the response was YES. [2024-06-04 16:25:51,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1613 events. 961/1613 cut-off events. For 174/182 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8598 event pairs, 415 based on Foata normal form. 89/1671 useless extension candidates. Maximal degree in co-relation 3331. Up to 892 conditions per place. [2024-06-04 16:25:51,743 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 39 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-06-04 16:25:51,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 207 flow [2024-06-04 16:25:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:25:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:25:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-06-04 16:25:51,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5934959349593496 [2024-06-04 16:25:51,746 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 91 flow. Second operand 3 states and 73 transitions. [2024-06-04 16:25:51,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 207 flow [2024-06-04 16:25:51,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:25:51,772 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 98 flow [2024-06-04 16:25:51,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-06-04 16:25:51,774 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-06-04 16:25:51,774 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 98 flow [2024-06-04 16:25:51,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-06-04 16:25:51,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:51,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:51,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 16:25:51,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:51,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2029084626, now seen corresponding path program 1 times [2024-06-04 16:25:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199474722] [2024-06-04 16:25:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:51,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:51,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199474722] [2024-06-04 16:25:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199474722] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:51,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:25:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669530803] [2024-06-04 16:25:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:51,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:51,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:51,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-04 16:25:51,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:25:51,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:51,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-04 16:25:51,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:52,176 INFO L124 PetriNetUnfolderBase]: 1188/2170 cut-off events. [2024-06-04 16:25:52,177 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-06-04 16:25:52,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4509 conditions, 2170 events. 1188/2170 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 13241 event pairs, 392 based on Foata normal form. 38/2178 useless extension candidates. Maximal degree in co-relation 4492. Up to 690 conditions per place. [2024-06-04 16:25:52,190 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 57 selfloop transitions, 13 changer transitions 0/81 dead transitions. [2024-06-04 16:25:52,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 81 transitions, 340 flow [2024-06-04 16:25:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-06-04 16:25:52,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6878048780487804 [2024-06-04 16:25:52,193 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 98 flow. Second operand 5 states and 141 transitions. [2024-06-04 16:25:52,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 81 transitions, 340 flow [2024-06-04 16:25:52,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 81 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:25:52,196 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 173 flow [2024-06-04 16:25:52,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-06-04 16:25:52,197 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-06-04 16:25:52,197 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 173 flow [2024-06-04 16:25:52,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:25:52,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:52,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:52,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 16:25:52,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:52,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:52,199 INFO L85 PathProgramCache]: Analyzing trace with hash -562038122, now seen corresponding path program 2 times [2024-06-04 16:25:52,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:52,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004243162] [2024-06-04 16:25:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:52,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004243162] [2024-06-04 16:25:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004243162] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:52,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:52,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:25:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992610323] [2024-06-04 16:25:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:52,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:52,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:52,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:52,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-04 16:25:52,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:25:52,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:52,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-04 16:25:52,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:52,521 INFO L124 PetriNetUnfolderBase]: 1145/2149 cut-off events. [2024-06-04 16:25:52,522 INFO L125 PetriNetUnfolderBase]: For 1012/1022 co-relation queries the response was YES. [2024-06-04 16:25:52,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5405 conditions, 2149 events. 1145/2149 cut-off events. For 1012/1022 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13404 event pairs, 394 based on Foata normal form. 47/2167 useless extension candidates. Maximal degree in co-relation 5386. Up to 669 conditions per place. [2024-06-04 16:25:52,539 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 57 selfloop transitions, 16 changer transitions 0/84 dead transitions. [2024-06-04 16:25:52,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 428 flow [2024-06-04 16:25:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-06-04 16:25:52,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6878048780487804 [2024-06-04 16:25:52,541 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 173 flow. Second operand 5 states and 141 transitions. [2024-06-04 16:25:52,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 428 flow [2024-06-04 16:25:52,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 84 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-04 16:25:52,544 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 242 flow [2024-06-04 16:25:52,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-06-04 16:25:52,545 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-04 16:25:52,546 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 242 flow [2024-06-04 16:25:52,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:25:52,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:52,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:52,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 16:25:52,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:52,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash 440188026, now seen corresponding path program 1 times [2024-06-04 16:25:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:52,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507117022] [2024-06-04 16:25:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:52,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:52,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:52,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507117022] [2024-06-04 16:25:52,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507117022] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:52,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:25:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496656178] [2024-06-04 16:25:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:52,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:52,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:52,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:52,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:52,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-04 16:25:52,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-06-04 16:25:52,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:52,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-04 16:25:52,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:52,983 INFO L124 PetriNetUnfolderBase]: 1984/3301 cut-off events. [2024-06-04 16:25:52,984 INFO L125 PetriNetUnfolderBase]: For 4069/4089 co-relation queries the response was YES. [2024-06-04 16:25:52,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9845 conditions, 3301 events. 1984/3301 cut-off events. For 4069/4089 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 18948 event pairs, 795 based on Foata normal form. 65/3315 useless extension candidates. Maximal degree in co-relation 9822. Up to 2507 conditions per place. [2024-06-04 16:25:53,012 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 75 selfloop transitions, 11 changer transitions 0/93 dead transitions. [2024-06-04 16:25:53,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 93 transitions, 629 flow [2024-06-04 16:25:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-06-04 16:25:53,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170731707317073 [2024-06-04 16:25:53,014 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 242 flow. Second operand 5 states and 106 transitions. [2024-06-04 16:25:53,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 93 transitions, 629 flow [2024-06-04 16:25:53,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:25:53,027 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 344 flow [2024-06-04 16:25:53,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2024-06-04 16:25:53,030 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-04 16:25:53,030 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 344 flow [2024-06-04 16:25:53,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-06-04 16:25:53,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:53,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:53,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-04 16:25:53,032 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:53,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:53,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1160988561, now seen corresponding path program 1 times [2024-06-04 16:25:53,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:53,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816772380] [2024-06-04 16:25:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:53,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:53,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816772380] [2024-06-04 16:25:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816772380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:53,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:25:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107914157] [2024-06-04 16:25:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:53,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:53,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:53,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-04 16:25:53,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-06-04 16:25:53,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:53,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-04 16:25:53,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:53,441 INFO L124 PetriNetUnfolderBase]: 1757/3022 cut-off events. [2024-06-04 16:25:53,441 INFO L125 PetriNetUnfolderBase]: For 5523/5577 co-relation queries the response was YES. [2024-06-04 16:25:53,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9207 conditions, 3022 events. 1757/3022 cut-off events. For 5523/5577 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17905 event pairs, 580 based on Foata normal form. 247/3241 useless extension candidates. Maximal degree in co-relation 9181. Up to 1818 conditions per place. [2024-06-04 16:25:53,456 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 53 selfloop transitions, 12 changer transitions 34/104 dead transitions. [2024-06-04 16:25:53,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 104 transitions, 748 flow [2024-06-04 16:25:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-06-04 16:25:53,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317073170731708 [2024-06-04 16:25:53,458 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 344 flow. Second operand 5 states and 109 transitions. [2024-06-04 16:25:53,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 104 transitions, 748 flow [2024-06-04 16:25:53,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 104 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:25:53,466 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 332 flow [2024-06-04 16:25:53,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-06-04 16:25:53,467 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-06-04 16:25:53,467 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 332 flow [2024-06-04 16:25:53,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-06-04 16:25:53,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:53,468 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] [2024-06-04 16:25:53,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-04 16:25:53,468 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 16:25:53,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1358728026, now seen corresponding path program 1 times [2024-06-04 16:25:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:53,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745661603] [2024-06-04 16:25:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:53,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:53,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745661603] [2024-06-04 16:25:53,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745661603] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:53,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:53,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:25:53,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375319956] [2024-06-04 16:25:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:53,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:53,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:53,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:53,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-04 16:25:53,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 332 flow. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-06-04 16:25:53,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:53,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-04 16:25:53,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:53,665 INFO L124 PetriNetUnfolderBase]: 300/577 cut-off events. [2024-06-04 16:25:53,666 INFO L125 PetriNetUnfolderBase]: For 858/924 co-relation queries the response was YES. [2024-06-04 16:25:53,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 577 events. 300/577 cut-off events. For 858/924 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2408 event pairs, 88 based on Foata normal form. 36/611 useless extension candidates. Maximal degree in co-relation 1700. Up to 186 conditions per place. [2024-06-04 16:25:53,668 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-06-04 16:25:53,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 376 flow [2024-06-04 16:25:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-04 16:25:53,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5902439024390244 [2024-06-04 16:25:53,670 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 332 flow. Second operand 5 states and 121 transitions. [2024-06-04 16:25:53,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 376 flow [2024-06-04 16:25:53,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 325 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-06-04 16:25:53,673 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-06-04 16:25:53,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=48, 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=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-06-04 16:25:53,675 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-04 16:25:53,675 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-06-04 16:25:53,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-06-04 16:25:53,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-04 16:25:53,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-04 16:25:53,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-04 16:25:53,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-04 16:25:53,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-04 16:25:53,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-04 16:25:53,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-04 16:25:53,680 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-06-04 16:25:53,683 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 16:25:53,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 16:25:53,686 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-04 16:25:53,686 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-04 16:25:53,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 04:25:53 BasicIcfg [2024-06-04 16:25:53,688 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 16:25:53,690 INFO L158 Benchmark]: Toolchain (without parser) took 4661.64ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 105.0MB in the beginning and 93.3MB in the end (delta: 11.7MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,693 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 167.8MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:25:53,693 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:25:53,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.12ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 89.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.28ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,694 INFO L158 Benchmark]: Boogie Preprocessor took 49.55ms. Allocated memory is still 167.8MB. Free memory was 87.7MB in the beginning and 85.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,694 INFO L158 Benchmark]: RCFGBuilder took 685.52ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 85.0MB in the beginning and 162.6MB in the end (delta: -77.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,695 INFO L158 Benchmark]: TraceAbstraction took 3495.59ms. Allocated memory was 216.0MB in the beginning and 266.3MB in the end (delta: 50.3MB). Free memory was 161.5MB in the beginning and 93.3MB in the end (delta: 68.3MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. [2024-06-04 16:25:53,696 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 0.20ms. Allocated memory is still 167.8MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.12ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 89.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.28ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.55ms. Allocated memory is still 167.8MB. Free memory was 87.7MB in the beginning and 85.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 685.52ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 85.0MB in the beginning and 162.6MB in the end (delta: -77.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3495.59ms. Allocated memory was 216.0MB in the beginning and 266.3MB in the end (delta: 50.3MB). Free memory was 161.5MB in the beginning and 93.3MB in the end (delta: 68.3MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 117]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 118]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 119]: 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 7 procedures, 67 locations, 6 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: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 728 IncrementalHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 11 mSDtfsCounter, 728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 0.9s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 551 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-04 16:25:53,724 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