./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.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/protection/parallel-barrier.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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-barrier.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/parallel-barrier.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-cde23df-m [2024-06-14 11:43:33,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:43:33,904 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 11:43:33,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:43:33,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:43:33,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:43:33,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:43:33,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:43:33,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:43:33,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:43:33,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:43:33,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:43:33,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:43:33,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:43:33,941 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:43:33,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:43:33,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:43:33,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:43:33,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 11:43:33,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:43:33,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:43:33,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:43:33,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:43:33,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:43:33,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:43:33,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:43:33,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:43:33,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:43:33,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:43:33,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:43:33,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:43:33,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:43:33,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:43:33,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:43:33,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:43:33,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:43:33,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 11:43:33,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 11:43:33,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:43:33,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:43:33,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:43:33,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:43:33,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:43:33,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:43:34,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:43:34,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:43:34,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:43:34,169 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:43:34,170 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:43:34,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/parallel-barrier.wvr.yml/witness.yml [2024-06-14 11:43:34,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:43:34,261 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:43:34,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2024-06-14 11:43:35,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:43:35,605 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 11:43:35,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2024-06-14 11:43:35,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddeb8f467/d0ef73bd1d794772b49424e4758bd5dd/FLAG048d00e10 [2024-06-14 11:43:35,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddeb8f467/d0ef73bd1d794772b49424e4758bd5dd [2024-06-14 11:43:35,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:43:35,624 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:43:35,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:43:35,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:43:35,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:43:35,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:34" (1/2) ... [2024-06-14 11:43:35,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deab2ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:43:35, skipping insertion in model container [2024-06-14 11:43:35,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:34" (1/2) ... [2024-06-14 11:43:35,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e83fd45 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:43:35, skipping insertion in model container [2024-06-14 11:43:35,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:35" (2/2) ... [2024-06-14 11:43:35,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deab2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35, skipping insertion in model container [2024-06-14 11:43:35,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:35" (2/2) ... [2024-06-14 11:43:35,634 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 11:43:35,652 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 11:43:35,656 INFO L97 edCorrectnessWitness]: Location invariant before [L102-L102] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,656 INFO L97 edCorrectnessWitness]: Location invariant before [L193-L193] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,656 INFO L97 edCorrectnessWitness]: Location invariant before [L103-L103] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,656 INFO L97 edCorrectnessWitness]: Location invariant before [L165-L165] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,656 INFO L97 edCorrectnessWitness]: Location invariant before [L194-L194] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,657 INFO L97 edCorrectnessWitness]: Location invariant before [L166-L166] ! multithreaded || -2147483647 <= y_7 [2024-06-14 11:43:35,657 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 11:43:35,657 INFO L106 edCorrectnessWitness]: ghost_update [L192-L192] multithreaded = 1; [2024-06-14 11:43:35,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:43:35,811 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:43:35,844 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 11:43:35,928 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:43:35,942 INFO L206 MainTranslator]: Completed translation [2024-06-14 11:43:35,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35 WrapperNode [2024-06-14 11:43:35,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 11:43:35,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 11:43:35,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 11:43:35,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 11:43:35,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:35,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:35,993 INFO L138 Inliner]: procedures = 24, calls = 69, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 249 [2024-06-14 11:43:35,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 11:43:35,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 11:43:35,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 11:43:35,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 11:43:36,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,016 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]. [2024-06-14 11:43:36,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 11:43:36,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 11:43:36,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 11:43:36,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 11:43:36,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (1/1) ... [2024-06-14 11:43:36,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:43:36,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:43:36,072 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) [2024-06-14 11:43:36,088 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 [2024-06-14 11:43:36,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 11:43:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 11:43:36,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 11:43:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 11:43:36,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 11:43:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 11:43:36,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 11:43:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 11:43:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 11:43:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 11:43:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-14 11:43:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-14 11:43:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-06-14 11:43:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-06-14 11:43:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 11:43:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 11:43:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 11:43:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 11:43:36,105 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 11:43:36,194 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 11:43:36,196 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 11:43:36,428 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 11:43:36,428 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 11:43:36,603 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 11:43:36,603 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 11:43:36,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:43:36 BoogieIcfgContainer [2024-06-14 11:43:36,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 11:43:36,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 11:43:36,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 11:43:36,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 11:43:36,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:34" (1/4) ... [2024-06-14 11:43:36,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cb720a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:43:36, skipping insertion in model container [2024-06-14 11:43:36,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:43:35" (2/4) ... [2024-06-14 11:43:36,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cb720a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:43:36, skipping insertion in model container [2024-06-14 11:43:36,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:35" (3/4) ... [2024-06-14 11:43:36,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cb720a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:43:36, skipping insertion in model container [2024-06-14 11:43:36,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:43:36" (4/4) ... [2024-06-14 11:43:36,614 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-06-14 11:43:36,628 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 11:43:36,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-14 11:43:36,628 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 11:43:36,720 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-06-14 11:43:36,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 86 transitions, 238 flow [2024-06-14 11:43:36,793 INFO L124 PetriNetUnfolderBase]: 4/74 cut-off events. [2024-06-14 11:43:36,794 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-14 11:43:36,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 74 events. 4/74 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 85. Up to 3 conditions per place. [2024-06-14 11:43:36,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 86 transitions, 238 flow [2024-06-14 11:43:36,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 72 transitions, 189 flow [2024-06-14 11:43:36,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 11:43:36,825 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;@5217d93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 11:43:36,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-06-14 11:43:36,829 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 11:43:36,829 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 11:43:36,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:43:36,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:36,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 11:43:36,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-14 11:43:36,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1861303216, now seen corresponding path program 1 times [2024-06-14 11:43:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:43:36,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460885059] [2024-06-14 11:43:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:43:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:43:37,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:43:37,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460885059] [2024-06-14 11:43:37,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460885059] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:37,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:37,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 11:43:37,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105473344] [2024-06-14 11:43:37,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:37,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:43:37,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:43:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:43:37,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:43:37,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 90 [2024-06-14 11:43:37,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 72 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-06-14 11:43:37,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:37,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 90 [2024-06-14 11:43:37,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:40,698 INFO L124 PetriNetUnfolderBase]: 30782/41180 cut-off events. [2024-06-14 11:43:40,698 INFO L125 PetriNetUnfolderBase]: For 4549/4549 co-relation queries the response was YES. [2024-06-14 11:43:40,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86305 conditions, 41180 events. 30782/41180 cut-off events. For 4549/4549 co-relation queries the response was YES. Maximal size of possible extension queue 1681. Compared 266075 event pairs, 9743 based on Foata normal form. 789/38459 useless extension candidates. Maximal degree in co-relation 85775. Up to 36292 conditions per place. [2024-06-14 11:43:41,033 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 67 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-06-14 11:43:41,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 95 transitions, 399 flow [2024-06-14 11:43:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:43:41,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:43:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-06-14 11:43:41,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259259259259259 [2024-06-14 11:43:41,046 INFO L175 Difference]: Start difference. First operand has 87 places, 72 transitions, 189 flow. Second operand 3 states and 169 transitions. [2024-06-14 11:43:41,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 95 transitions, 399 flow [2024-06-14 11:43:41,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 95 transitions, 354 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-06-14 11:43:41,105 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 185 flow [2024-06-14 11:43:41,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-06-14 11:43:41,109 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -9 predicate places. [2024-06-14 11:43:41,109 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 185 flow [2024-06-14 11:43:41,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-06-14 11:43:41,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:41,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:41,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 11:43:41,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-14 11:43:41,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2072614668, now seen corresponding path program 1 times [2024-06-14 11:43:41,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:43:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179862157] [2024-06-14 11:43:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:43:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:43:41,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:43:41,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179862157] [2024-06-14 11:43:41,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179862157] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:41,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:41,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:43:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470914061] [2024-06-14 11:43:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:41,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 11:43:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:43:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 11:43:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-14 11:43:41,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 90 [2024-06-14 11:43:41,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:41,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:41,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 90 [2024-06-14 11:43:41,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:46,361 INFO L124 PetriNetUnfolderBase]: 55871/76396 cut-off events. [2024-06-14 11:43:46,378 INFO L125 PetriNetUnfolderBase]: For 11455/11455 co-relation queries the response was YES. [2024-06-14 11:43:46,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163742 conditions, 76396 events. 55871/76396 cut-off events. For 11455/11455 co-relation queries the response was YES. Maximal size of possible extension queue 3301. Compared 542405 event pairs, 10578 based on Foata normal form. 5052/77410 useless extension candidates. Maximal degree in co-relation 59646. Up to 34459 conditions per place. [2024-06-14 11:43:46,826 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 161 selfloop transitions, 10 changer transitions 0/194 dead transitions. [2024-06-14 11:43:46,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 194 transitions, 828 flow [2024-06-14 11:43:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 11:43:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 11:43:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 382 transitions. [2024-06-14 11:43:46,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6063492063492063 [2024-06-14 11:43:46,833 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 185 flow. Second operand 7 states and 382 transitions. [2024-06-14 11:43:46,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 194 transitions, 828 flow [2024-06-14 11:43:46,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 194 transitions, 824 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:43:46,840 INFO L231 Difference]: Finished difference. Result has 87 places, 79 transitions, 255 flow [2024-06-14 11:43:46,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=87, PETRI_TRANSITIONS=79} [2024-06-14 11:43:46,841 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 0 predicate places. [2024-06-14 11:43:46,844 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 79 transitions, 255 flow [2024-06-14 11:43:46,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:46,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:46,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:46,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 11:43:46,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-14 11:43:46,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:46,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1130242980, now seen corresponding path program 1 times [2024-06-14 11:43:46,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:43:46,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945455360] [2024-06-14 11:43:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:46,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:43:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:43:46,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:43:46,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945455360] [2024-06-14 11:43:46,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945455360] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:46,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:46,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:43:46,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584070283] [2024-06-14 11:43:46,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:46,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:43:46,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:43:46,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:43:46,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:43:46,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 90 [2024-06-14 11:43:46,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 79 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-06-14 11:43:46,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:46,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 90 [2024-06-14 11:43:46,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:47,840 INFO L124 PetriNetUnfolderBase]: 7565/12992 cut-off events. [2024-06-14 11:43:47,841 INFO L125 PetriNetUnfolderBase]: For 2225/2225 co-relation queries the response was YES. [2024-06-14 11:43:47,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29676 conditions, 12992 events. 7565/12992 cut-off events. For 2225/2225 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 97399 event pairs, 5232 based on Foata normal form. 138/12216 useless extension candidates. Maximal degree in co-relation 21558. Up to 8048 conditions per place. [2024-06-14 11:43:47,940 INFO L140 encePairwiseOnDemand]: 87/90 looper letters, 56 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-06-14 11:43:47,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 374 flow [2024-06-14 11:43:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:43:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:43:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-06-14 11:43:47,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6407407407407407 [2024-06-14 11:43:47,942 INFO L175 Difference]: Start difference. First operand has 87 places, 79 transitions, 255 flow. Second operand 3 states and 173 transitions. [2024-06-14 11:43:47,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 374 flow [2024-06-14 11:43:47,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 90 transitions, 357 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-14 11:43:47,966 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 206 flow [2024-06-14 11:43:47,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-06-14 11:43:47,967 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -4 predicate places. [2024-06-14 11:43:47,967 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 206 flow [2024-06-14 11:43:47,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-06-14 11:43:47,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:47,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 11:43:47,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-14 11:43:47,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1614782596, now seen corresponding path program 1 times [2024-06-14 11:43:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:43:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922259738] [2024-06-14 11:43:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:43:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:43:48,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:43:48,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922259738] [2024-06-14 11:43:48,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922259738] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:48,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:48,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 11:43:48,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712701362] [2024-06-14 11:43:48,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:48,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 11:43:48,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:43:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 11:43:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-14 11:43:48,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 90 [2024-06-14 11:43:48,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 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) [2024-06-14 11:43:48,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:48,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 90 [2024-06-14 11:43:48,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:49,479 INFO L124 PetriNetUnfolderBase]: 16073/22387 cut-off events. [2024-06-14 11:43:49,479 INFO L125 PetriNetUnfolderBase]: For 11423/11423 co-relation queries the response was YES. [2024-06-14 11:43:49,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47907 conditions, 22387 events. 16073/22387 cut-off events. For 11423/11423 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 138431 event pairs, 2305 based on Foata normal form. 1828/23044 useless extension candidates. Maximal degree in co-relation 28534. Up to 3885 conditions per place. [2024-06-14 11:43:49,556 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 0 selfloop transitions, 0 changer transitions 207/207 dead transitions. [2024-06-14 11:43:49,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 207 transitions, 881 flow [2024-06-14 11:43:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 11:43:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 11:43:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 464 transitions. [2024-06-14 11:43:49,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5155555555555555 [2024-06-14 11:43:49,558 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 206 flow. Second operand 10 states and 464 transitions. [2024-06-14 11:43:49,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 207 transitions, 881 flow [2024-06-14 11:43:49,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 207 transitions, 868 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 11:43:49,621 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2024-06-14 11:43:49,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2024-06-14 11:43:49,621 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -4 predicate places. [2024-06-14 11:43:49,622 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2024-06-14 11:43:49,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 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) [2024-06-14 11:43:49,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 20 remaining) [2024-06-14 11:43:49,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-06-14 11:43:49,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 20 remaining) [2024-06-14 11:43:49,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 20 remaining) [2024-06-14 11:43:49,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 20 remaining) [2024-06-14 11:43:49,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 11:43:49,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-14 11:43:49,632 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 11:43:49,632 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 11:43:49,635 INFO L507 ceAbstractionStarter]: Automizer considered 6 witness invariants [2024-06-14 11:43:49,635 INFO L508 ceAbstractionStarter]: WitnessConsidered=6 [2024-06-14 11:43:49,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 11:43:49 BasicIcfg [2024-06-14 11:43:49,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 11:43:49,636 INFO L158 Benchmark]: Toolchain (without parser) took 14011.99ms. Allocated memory was 136.3MB in the beginning and 10.3GB in the end (delta: 10.2GB). Free memory was 77.8MB in the beginning and 8.8GB in the end (delta: -8.8GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-06-14 11:43:49,637 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 99.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:43:49,637 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:43:49,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.27ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 77.8MB in the beginning and 139.6MB in the end (delta: -61.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-06-14 11:43:49,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.06ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 137.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:43:49,638 INFO L158 Benchmark]: Boogie Preprocessor took 47.88ms. Allocated memory is still 169.9MB. Free memory was 137.6MB in the beginning and 134.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:43:49,638 INFO L158 Benchmark]: RCFGBuilder took 562.33ms. Allocated memory is still 169.9MB. Free memory was 134.5MB in the beginning and 79.9MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-06-14 11:43:49,638 INFO L158 Benchmark]: TraceAbstraction took 13029.18ms. Allocated memory was 169.9MB in the beginning and 10.3GB in the end (delta: 10.1GB). Free memory was 78.9MB in the beginning and 8.8GB in the end (delta: -8.8GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-06-14 11:43:49,640 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 0.16ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 99.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.27ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 77.8MB in the beginning and 139.6MB in the end (delta: -61.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.06ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 137.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.88ms. Allocated memory is still 169.9MB. Free memory was 137.6MB in the beginning and 134.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.33ms. Allocated memory is still 169.9MB. Free memory was 134.5MB in the beginning and 79.9MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13029.18ms. Allocated memory was 169.9MB in the beginning and 10.3GB in the end (delta: 10.1GB). Free memory was 78.9MB in the beginning and 8.8GB in the end (delta: -8.8GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 102]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 103]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 193]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 194]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 165]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 166]: 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 13 procedures, 149 locations, 20 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: 12.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 461 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1097 IncrementalHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 15 mSDtfsCounter, 1097 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=2, InterpolantAutomatonStates: 23, 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, 0.4s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 11:43:49,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE