./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe030_power.opt_pso.opt_rmo.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe030_power.opt_pso.opt_rmo.opt.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-7724a2d-m [2024-06-28 00:37:53,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 00:37:53,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 00:37:53,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 00:37:53,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 00:37:53,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 00:37:53,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 00:37:53,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 00:37:53,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 00:37:53,761 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 00:37:53,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 00:37:53,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 00:37:53,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 00:37:53,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 00:37:53,764 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 00:37:53,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 00:37:53,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 00:37:53,765 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 00:37:53,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 00:37:53,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 00:37:53,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 00:37:53,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 00:37:53,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 00:37:53,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 00:37:53,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 00:37:53,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 00:37:53,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 00:37:53,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 00:37:53,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 00:37:53,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 00:37:53,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 00:37:53,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 00:37:53,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 00:37:53,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 00:37:53,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 00:37:53,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 00:37:53,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 00:37:53,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 00:37:53,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-28 00:37:53,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 00:37:53,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 00:37:53,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 00:37:53,967 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 00:37:53,967 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 00:37:53,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe030_power.opt_pso.opt_rmo.opt.yml/witness.yml [2024-06-28 00:37:54,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 00:37:54,040 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 00:37:54,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2024-06-28 00:37:55,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 00:37:55,570 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 00:37:55,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2024-06-28 00:37:55,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042620ff3/9f22ab3ce10a4130aea5f25102f7a0b7/FLAGcabaca54f [2024-06-28 00:37:55,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042620ff3/9f22ab3ce10a4130aea5f25102f7a0b7 [2024-06-28 00:37:55,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 00:37:55,597 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 00:37:55,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 00:37:55,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 00:37:55,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 00:37:55,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 12:37:54" (1/2) ... [2024-06-28 00:37:55,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fb0eec and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 12:37:55, skipping insertion in model container [2024-06-28 00:37:55,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 12:37:54" (1/2) ... [2024-06-28 00:37:55,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@159ca4a0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 12:37:55, skipping insertion in model container [2024-06-28 00:37:55,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 12:37:55" (2/2) ... [2024-06-28 00:37:55,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fb0eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:55, skipping insertion in model container [2024-06-28 00:37:55,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 12:37:55" (2/2) ... [2024-06-28 00:37:55,607 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 00:37:55,633 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 00:37:55,634 INFO L97 edCorrectnessWitness]: Location invariant before [L816-L816] ! multithreaded || ((((((((((((0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-28 00:37:55,634 INFO L97 edCorrectnessWitness]: Location invariant before [L814-L814] ! multithreaded || ((((((((((((0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-28 00:37:55,634 INFO L97 edCorrectnessWitness]: Location invariant before [L817-L817] ! multithreaded || ((((((((((((0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-28 00:37:55,635 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 00:37:55,636 INFO L106 edCorrectnessWitness]: ghost_update [L812-L812] multithreaded = 1; [2024-06-28 00:37:55,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 00:37:56,052 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 00:37:56,094 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 00:37:56,269 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 00:37:56,313 INFO L206 MainTranslator]: Completed translation [2024-06-28 00:37:56,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56 WrapperNode [2024-06-28 00:37:56,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 00:37:56,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 00:37:56,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 00:37:56,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 00:37:56,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,382 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 142 [2024-06-28 00:37:56,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 00:37:56,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 00:37:56,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 00:37:56,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 00:37:56,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,407 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,424 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]. [2024-06-28 00:37:56,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 00:37:56,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 00:37:56,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 00:37:56,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 00:37:56,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (1/1) ... [2024-06-28 00:37:56,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 00:37:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 00:37:56,485 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) [2024-06-28 00:37:56,491 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 [2024-06-28 00:37:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 00:37:56,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 00:37:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-28 00:37:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-28 00:37:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-28 00:37:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-28 00:37:56,518 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-28 00:37:56,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-28 00:37:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 00:37:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 00:37:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 00:37:56,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 00:37:56,521 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 00:37:56,613 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 00:37:56,615 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 00:37:56,909 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 00:37:56,909 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 00:37:57,072 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 00:37:57,072 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 00:37:57,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 12:37:57 BoogieIcfgContainer [2024-06-28 00:37:57,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 00:37:57,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 00:37:57,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 00:37:57,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 00:37:57,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 12:37:54" (1/4) ... [2024-06-28 00:37:57,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc9feed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 12:37:57, skipping insertion in model container [2024-06-28 00:37:57,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 12:37:55" (2/4) ... [2024-06-28 00:37:57,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc9feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 12:37:57, skipping insertion in model container [2024-06-28 00:37:57,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 12:37:56" (3/4) ... [2024-06-28 00:37:57,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc9feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 12:37:57, skipping insertion in model container [2024-06-28 00:37:57,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 12:37:57" (4/4) ... [2024-06-28 00:37:57,086 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_power.opt_pso.opt_rmo.opt.i [2024-06-28 00:37:57,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 00:37:57,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-28 00:37:57,104 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 00:37:57,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 00:37:57,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2024-06-28 00:37:57,253 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-06-28 00:37:57,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 00:37:57,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-28 00:37:57,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2024-06-28 00:37:57,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 31 transitions, 71 flow [2024-06-28 00:37:57,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 00:37:57,282 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;@28e54e92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 00:37:57,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-28 00:37:57,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 00:37:57,288 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 00:37:57,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 00:37:57,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 00:37:57,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 00:37:57,290 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)] === [2024-06-28 00:37:57,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 00:37:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash 358423109, now seen corresponding path program 1 times [2024-06-28 00:37:57,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 00:37:57,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771216600] [2024-06-28 00:37:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 00:37:57,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 00:37:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 00:37:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 00:37:57,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 00:37:57,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771216600] [2024-06-28 00:37:57,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771216600] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 00:37:57,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 00:37:57,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 00:37:57,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352313017] [2024-06-28 00:37:57,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 00:37:57,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 00:37:57,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 00:37:58,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 00:37:58,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 00:37:58,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-06-28 00:37:58,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-06-28 00:37:58,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 00:37:58,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-06-28 00:37:58,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 00:37:58,113 INFO L124 PetriNetUnfolderBase]: 126/261 cut-off events. [2024-06-28 00:37:58,114 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 00:37:58,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 261 events. 126/261 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1426 event pairs, 45 based on Foata normal form. 6/251 useless extension candidates. Maximal degree in co-relation 489. Up to 148 conditions per place. [2024-06-28 00:37:58,118 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 18 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2024-06-28 00:37:58,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 115 flow [2024-06-28 00:37:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 00:37:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 00:37:58,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-06-28 00:37:58,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-06-28 00:37:58,128 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 71 flow. Second operand 3 states and 77 transitions. [2024-06-28 00:37:58,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 115 flow [2024-06-28 00:37:58,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 00:37:58,132 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 72 flow [2024-06-28 00:37:58,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-06-28 00:37:58,136 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2024-06-28 00:37:58,136 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 72 flow [2024-06-28 00:37:58,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-06-28 00:37:58,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 00:37:58,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 00:37:58,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 00:37:58,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-28 00:37:58,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 00:37:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1913406499, now seen corresponding path program 1 times [2024-06-28 00:37:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 00:37:58,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017017879] [2024-06-28 00:37:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 00:37:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 00:37:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 00:37:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 00:37:58,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 00:37:58,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017017879] [2024-06-28 00:37:58,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017017879] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 00:37:58,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 00:37:58,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 00:37:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337244638] [2024-06-28 00:37:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 00:37:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 00:37:58,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 00:37:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 00:37:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 00:37:58,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-06-28 00:37:58,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-06-28 00:37:58,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 00:37:58,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-06-28 00:37:58,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 00:37:58,555 INFO L124 PetriNetUnfolderBase]: 133/278 cut-off events. [2024-06-28 00:37:58,555 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-06-28 00:37:58,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 278 events. 133/278 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1516 event pairs, 41 based on Foata normal form. 6/274 useless extension candidates. Maximal degree in co-relation 559. Up to 133 conditions per place. [2024-06-28 00:37:58,560 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 21 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-06-28 00:37:58,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 140 flow [2024-06-28 00:37:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 00:37:58,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 00:37:58,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-06-28 00:37:58,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6125 [2024-06-28 00:37:58,564 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 72 flow. Second operand 4 states and 98 transitions. [2024-06-28 00:37:58,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 140 flow [2024-06-28 00:37:58,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 00:37:58,568 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 89 flow [2024-06-28 00:37:58,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-06-28 00:37:58,569 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-06-28 00:37:58,569 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 89 flow [2024-06-28 00:37:58,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-06-28 00:37:58,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 00:37:58,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 00:37:58,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 00:37:58,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-28 00:37:58,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 00:37:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash -537609092, now seen corresponding path program 1 times [2024-06-28 00:37:58,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 00:37:58,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906136509] [2024-06-28 00:37:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 00:37:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 00:37:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 00:37:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 00:37:59,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 00:37:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906136509] [2024-06-28 00:37:59,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906136509] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 00:37:59,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 00:37:59,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 00:37:59,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776145912] [2024-06-28 00:37:59,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 00:37:59,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 00:37:59,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 00:37:59,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 00:37:59,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 00:37:59,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-06-28 00:37:59,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-28 00:37:59,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 00:37:59,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-06-28 00:37:59,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 00:37:59,145 INFO L124 PetriNetUnfolderBase]: 141/306 cut-off events. [2024-06-28 00:37:59,145 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-06-28 00:37:59,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 306 events. 141/306 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1753 event pairs, 55 based on Foata normal form. 12/308 useless extension candidates. Maximal degree in co-relation 677. Up to 89 conditions per place. [2024-06-28 00:37:59,146 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 17 selfloop transitions, 3 changer transitions 9/42 dead transitions. [2024-06-28 00:37:59,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 171 flow [2024-06-28 00:37:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 00:37:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 00:37:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-06-28 00:37:59,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-28 00:37:59,148 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 89 flow. Second operand 5 states and 120 transitions. [2024-06-28 00:37:59,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 171 flow [2024-06-28 00:37:59,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 00:37:59,150 INFO L231 Difference]: Finished difference. Result has 44 places, 29 transitions, 84 flow [2024-06-28 00:37:59,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2024-06-28 00:37:59,150 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-06-28 00:37:59,151 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 29 transitions, 84 flow [2024-06-28 00:37:59,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-28 00:37:59,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 00:37:59,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 00:37:59,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 00:37:59,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-28 00:37:59,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 00:37:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1961695027, now seen corresponding path program 1 times [2024-06-28 00:37:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 00:37:59,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754401753] [2024-06-28 00:37:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 00:37:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 00:37:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 00:37:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 00:37:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 00:37:59,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754401753] [2024-06-28 00:37:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754401753] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 00:37:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 00:37:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 00:37:59,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669589765] [2024-06-28 00:37:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 00:37:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 00:37:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 00:37:59,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 00:37:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 00:37:59,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-06-28 00:37:59,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 29 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-28 00:37:59,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 00:37:59,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-06-28 00:37:59,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 00:37:59,614 INFO L124 PetriNetUnfolderBase]: 43/118 cut-off events. [2024-06-28 00:37:59,614 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-06-28 00:37:59,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 118 events. 43/118 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 465 event pairs, 7 based on Foata normal form. 12/126 useless extension candidates. Maximal degree in co-relation 245. Up to 40 conditions per place. [2024-06-28 00:37:59,615 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-06-28 00:37:59,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 126 flow [2024-06-28 00:37:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 00:37:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 00:37:59,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-06-28 00:37:59,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-06-28 00:37:59,617 INFO L175 Difference]: Start difference. First operand has 44 places, 29 transitions, 84 flow. Second operand 5 states and 112 transitions. [2024-06-28 00:37:59,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 126 flow [2024-06-28 00:37:59,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 00:37:59,618 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2024-06-28 00:37:59,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2024-06-28 00:37:59,619 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-06-28 00:37:59,619 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2024-06-28 00:37:59,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-28 00:37:59,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-28 00:37:59,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-28 00:37:59,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-28 00:37:59,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-28 00:37:59,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-28 00:37:59,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-28 00:37:59,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 00:37:59,623 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-28 00:37:59,625 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 00:37:59,625 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 00:37:59,628 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-28 00:37:59,628 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-28 00:37:59,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 12:37:59 BasicIcfg [2024-06-28 00:37:59,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 00:37:59,630 INFO L158 Benchmark]: Toolchain (without parser) took 4032.92ms. Allocated memory was 195.0MB in the beginning and 268.4MB in the end (delta: 73.4MB). Free memory was 121.1MB in the beginning and 173.9MB in the end (delta: -52.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-28 00:37:59,630 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 00:37:59,630 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 00:37:59,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.51ms. Allocated memory is still 195.0MB. Free memory was 121.1MB in the beginning and 149.7MB in the end (delta: -28.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-28 00:37:59,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.43ms. Allocated memory is still 195.0MB. Free memory was 149.7MB in the beginning and 146.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 00:37:59,631 INFO L158 Benchmark]: Boogie Preprocessor took 75.67ms. Allocated memory is still 195.0MB. Free memory was 146.4MB in the beginning and 142.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-28 00:37:59,631 INFO L158 Benchmark]: RCFGBuilder took 614.30ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 90.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-06-28 00:37:59,631 INFO L158 Benchmark]: TraceAbstraction took 2552.61ms. Allocated memory was 195.0MB in the beginning and 268.4MB in the end (delta: 73.4MB). Free memory was 89.7MB in the beginning and 173.9MB in the end (delta: -84.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 00:37:59,633 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 0.15ms. Allocated memory is still 134.2MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.51ms. Allocated memory is still 195.0MB. Free memory was 121.1MB in the beginning and 149.7MB in the end (delta: -28.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.43ms. Allocated memory is still 195.0MB. Free memory was 149.7MB in the beginning and 146.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.67ms. Allocated memory is still 195.0MB. Free memory was 146.4MB in the beginning and 142.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 614.30ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 90.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2552.61ms. Allocated memory was 195.0MB in the beginning and 268.4MB in the end (delta: 73.4MB). Free memory was 89.7MB in the beginning and 173.9MB in the end (delta: -84.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 814]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 816]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 817]: 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, 65 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 4 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-06-28 00:37:59,671 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