./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.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/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 20:21:45,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 20:21:45,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 20:21:45,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 20:21:45,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 20:21:45,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 20:21:45,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 20:21:45,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 20:21:45,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 20:21:45,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 20:21:45,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 20:21:45,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 20:21:45,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 20:21:45,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 20:21:45,877 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 20:21:45,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 20:21:45,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 20:21:45,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 20:21:45,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 20:21:45,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 20:21:45,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 20:21:45,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 20:21:45,880 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 20:21:45,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 20:21:45,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 20:21:45,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 20:21:45,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 20:21:45,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 20:21:45,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 20:21:45,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 20:21:45,883 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 20:21:45,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 20:21:45,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 20:21:45,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 20:21:46,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 20:21:46,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 20:21:46,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 20:21:46,121 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 20:21:46,122 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 20:21:46,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-03 20:21:47,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 20:21:47,290 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 20:21:47,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-03 20:21:47,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c69f07a1/5dde21581fe84a3b9d5e4a279c30bbd3/FLAGb8a9e75da [2024-06-03 20:21:47,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c69f07a1/5dde21581fe84a3b9d5e4a279c30bbd3 [2024-06-03 20:21:47,312 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 20:21:47,312 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 20:21:47,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml [2024-06-03 20:21:47,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 20:21:47,393 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 20:21:47,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 20:21:47,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 20:21:47,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 20:21:47,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 08:21:47" (1/2) ... [2024-06-03 20:21:47,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3660e668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:21:47, skipping insertion in model container [2024-06-03 20:21:47,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 08:21:47" (1/2) ... [2024-06-03 20:21:47,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dacedec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:21:47, skipping insertion in model container [2024-06-03 20:21:47,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:21:47" (2/2) ... [2024-06-03 20:21:47,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3660e668 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47, skipping insertion in model container [2024-06-03 20:21:47,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:21:47" (2/2) ... [2024-06-03 20:21:47,403 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 20:21:47,423 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 20:21:47,424 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-03 20:21:47,425 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-03 20:21:47,425 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-03 20:21:47,425 INFO L97 edCorrectnessWitness]: Location invariant before [L148-L148] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-03 20:21:47,425 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 20:21:47,425 INFO L106 edCorrectnessWitness]: ghost_update [L144-L144] multithreaded = 1; [2024-06-03 20:21:47,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 20:21:47,664 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 20:21:47,672 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 20:21:47,739 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 20:21:47,752 INFO L206 MainTranslator]: Completed translation [2024-06-03 20:21:47,752 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47 WrapperNode [2024-06-03 20:21:47,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 20:21:47,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 20:21:47,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 20:21:47,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 20:21:47,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,789 INFO L138 Inliner]: procedures = 25, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 316 [2024-06-03 20:21:47,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 20:21:47,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 20:21:47,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 20:21:47,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 20:21:47,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,815 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-03 20:21:47,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 20:21:47,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 20:21:47,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 20:21:47,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 20:21:47,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (1/1) ... [2024-06-03 20:21:47,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 20:21:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 20:21:47,875 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) [2024-06-03 20:21:47,885 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 [2024-06-03 20:21:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 20:21:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 20:21:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 20:21:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 20:21:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 20:21:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 20:21:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 20:21:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-03 20:21:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-03 20:21:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 20:21:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 20:21:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 20:21:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 20:21:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 20:21:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 20:21:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-03 20:21:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 20:21:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 20:21:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 20:21:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 20:21:47,918 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 20:21:48,031 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 20:21:48,032 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 20:21:48,349 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 20:21:48,349 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 20:21:48,670 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 20:21:48,670 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-03 20:21:48,671 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 08:21:48 BoogieIcfgContainer [2024-06-03 20:21:48,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 20:21:48,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 20:21:48,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 20:21:48,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 20:21:48,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 08:21:47" (1/4) ... [2024-06-03 20:21:48,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b95333f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 08:21:48, skipping insertion in model container [2024-06-03 20:21:48,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:21:47" (2/4) ... [2024-06-03 20:21:48,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b95333f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 08:21:48, skipping insertion in model container [2024-06-03 20:21:48,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:21:47" (3/4) ... [2024-06-03 20:21:48,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b95333f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 08:21:48, skipping insertion in model container [2024-06-03 20:21:48,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 08:21:48" (4/4) ... [2024-06-03 20:21:48,679 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2024-06-03 20:21:48,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 20:21:48,693 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-03 20:21:48,693 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 20:21:48,736 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-03 20:21:48,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 54 transitions, 136 flow [2024-06-03 20:21:48,801 INFO L124 PetriNetUnfolderBase]: 6/50 cut-off events. [2024-06-03 20:21:48,801 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-03 20:21:48,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 6/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-06-03 20:21:48,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 54 transitions, 136 flow [2024-06-03 20:21:48,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 48 transitions, 117 flow [2024-06-03 20:21:48,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 20:21:48,827 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;@3d2645bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 20:21:48,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-03 20:21:48,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 20:21:48,833 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-06-03 20:21:48,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 20:21:48,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:21:48,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:21:48,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-03 20:21:48,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:21:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash 306375158, now seen corresponding path program 1 times [2024-06-03 20:21:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:21:48,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501140464] [2024-06-03 20:21:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:21:48,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:21:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:21:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 20:21:49,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:21:49,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501140464] [2024-06-03 20:21:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501140464] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:21:49,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:21:49,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 20:21:49,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353049522] [2024-06-03 20:21:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:21:49,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 20:21:49,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:21:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 20:21:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 20:21:49,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-06-03 20:21:49,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-06-03 20:21:49,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:21:49,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-06-03 20:21:49,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:21:49,889 INFO L124 PetriNetUnfolderBase]: 3046/4681 cut-off events. [2024-06-03 20:21:49,889 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-06-03 20:21:49,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9018 conditions, 4681 events. 3046/4681 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 29633 event pairs, 743 based on Foata normal form. 81/4453 useless extension candidates. Maximal degree in co-relation 8347. Up to 3090 conditions per place. [2024-06-03 20:21:49,921 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 53 selfloop transitions, 3 changer transitions 2/71 dead transitions. [2024-06-03 20:21:49,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 297 flow [2024-06-03 20:21:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 20:21:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 20:21:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-06-03 20:21:49,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6975308641975309 [2024-06-03 20:21:49,934 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 117 flow. Second operand 3 states and 113 transitions. [2024-06-03 20:21:49,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 297 flow [2024-06-03 20:21:49,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 71 transitions, 273 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-03 20:21:49,948 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 129 flow [2024-06-03 20:21:49,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2024-06-03 20:21:49,953 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -4 predicate places. [2024-06-03 20:21:49,953 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 129 flow [2024-06-03 20:21:49,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-06-03 20:21:49,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:21:49,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:21:49,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 20:21:49,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-03 20:21:49,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:21:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash 442914582, now seen corresponding path program 1 times [2024-06-03 20:21:49,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:21:49,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411574122] [2024-06-03 20:21:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:21:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:21:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:21:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 20:21:50,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:21:50,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411574122] [2024-06-03 20:21:50,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411574122] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:21:50,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:21:50,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 20:21:50,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291674973] [2024-06-03 20:21:50,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:21:50,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 20:21:50,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:21:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 20:21:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-03 20:21:50,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-06-03 20:21:50,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-06-03 20:21:50,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:21:50,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-06-03 20:21:50,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:21:50,660 INFO L124 PetriNetUnfolderBase]: 3327/5128 cut-off events. [2024-06-03 20:21:50,660 INFO L125 PetriNetUnfolderBase]: For 555/555 co-relation queries the response was YES. [2024-06-03 20:21:50,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10879 conditions, 5128 events. 3327/5128 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 33238 event pairs, 728 based on Foata normal form. 120/5079 useless extension candidates. Maximal degree in co-relation 2160. Up to 2412 conditions per place. [2024-06-03 20:21:50,686 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 69 selfloop transitions, 4 changer transitions 4/90 dead transitions. [2024-06-03 20:21:50,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 90 transitions, 378 flow [2024-06-03 20:21:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 20:21:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 20:21:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-06-03 20:21:50,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6898148148148148 [2024-06-03 20:21:50,688 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 129 flow. Second operand 4 states and 149 transitions. [2024-06-03 20:21:50,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 90 transitions, 378 flow [2024-06-03 20:21:50,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 90 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 20:21:50,690 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 144 flow [2024-06-03 20:21:50,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-06-03 20:21:50,691 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-06-03 20:21:50,691 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 144 flow [2024-06-03 20:21:50,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-06-03 20:21:50,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:21:50,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:21:50,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 20:21:50,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-03 20:21:50,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:21:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash 259370724, now seen corresponding path program 1 times [2024-06-03 20:21:50,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:21:50,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232038498] [2024-06-03 20:21:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:21:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:21:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:21:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 20:21:50,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:21:50,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232038498] [2024-06-03 20:21:50,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232038498] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:21:50,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:21:50,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 20:21:50,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032431913] [2024-06-03 20:21:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:21:50,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 20:21:50,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:21:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 20:21:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-03 20:21:50,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-06-03 20:21:50,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-06-03 20:21:50,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:21:50,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-06-03 20:21:50,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:21:51,297 INFO L124 PetriNetUnfolderBase]: 3641/5742 cut-off events. [2024-06-03 20:21:51,298 INFO L125 PetriNetUnfolderBase]: For 1977/1977 co-relation queries the response was YES. [2024-06-03 20:21:51,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12690 conditions, 5742 events. 3641/5742 cut-off events. For 1977/1977 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 39114 event pairs, 987 based on Foata normal form. 117/5673 useless extension candidates. Maximal degree in co-relation 4943. Up to 2909 conditions per place. [2024-06-03 20:21:51,328 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 68 selfloop transitions, 4 changer transitions 6/91 dead transitions. [2024-06-03 20:21:51,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 91 transitions, 401 flow [2024-06-03 20:21:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 20:21:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 20:21:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-06-03 20:21:51,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-06-03 20:21:51,332 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 144 flow. Second operand 4 states and 148 transitions. [2024-06-03 20:21:51,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 91 transitions, 401 flow [2024-06-03 20:21:51,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 91 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 20:21:51,337 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 160 flow [2024-06-03 20:21:51,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-06-03 20:21:51,339 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2024-06-03 20:21:51,339 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 160 flow [2024-06-03 20:21:51,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-06-03 20:21:51,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:21:51,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:21:51,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 20:21:51,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-03 20:21:51,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:21:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2123021088, now seen corresponding path program 1 times [2024-06-03 20:21:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:21:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003182974] [2024-06-03 20:21:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:21:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:21:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:21:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 20:21:51,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:21:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003182974] [2024-06-03 20:21:51,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003182974] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:21:51,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:21:51,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 20:21:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906975203] [2024-06-03 20:21:51,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:21:51,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 20:21:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:21:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 20:21:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-03 20:21:51,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-06-03 20:21:51,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-03 20:21:51,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:21:51,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-06-03 20:21:51,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:21:52,210 INFO L124 PetriNetUnfolderBase]: 4447/7055 cut-off events. [2024-06-03 20:21:52,210 INFO L125 PetriNetUnfolderBase]: For 3450/3450 co-relation queries the response was YES. [2024-06-03 20:21:52,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16073 conditions, 7055 events. 4447/7055 cut-off events. For 3450/3450 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 49795 event pairs, 978 based on Foata normal form. 117/6986 useless extension candidates. Maximal degree in co-relation 7668. Up to 2807 conditions per place. [2024-06-03 20:21:52,245 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 89 selfloop transitions, 4 changer transitions 5/111 dead transitions. [2024-06-03 20:21:52,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 111 transitions, 507 flow [2024-06-03 20:21:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 20:21:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 20:21:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 185 transitions. [2024-06-03 20:21:52,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-06-03 20:21:52,247 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 160 flow. Second operand 5 states and 185 transitions. [2024-06-03 20:21:52,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 111 transitions, 507 flow [2024-06-03 20:21:52,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 111 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 20:21:52,251 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 169 flow [2024-06-03 20:21:52,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-06-03 20:21:52,252 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2024-06-03 20:21:52,252 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 169 flow [2024-06-03 20:21:52,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-03 20:21:52,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:21:52,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:21:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 20:21:52,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-03 20:21:52,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:21:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2123026668, now seen corresponding path program 2 times [2024-06-03 20:21:52,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:21:52,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985722713] [2024-06-03 20:21:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:21:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:21:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:21:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 20:21:52,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:21:52,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985722713] [2024-06-03 20:21:52,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985722713] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:21:52,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:21:52,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 20:21:52,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334238299] [2024-06-03 20:21:52,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:21:52,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 20:21:52,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:21:52,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 20:21:52,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-03 20:21:52,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-06-03 20:21:52,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-03 20:21:52,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:21:52,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-06-03 20:21:52,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:21:52,865 INFO L124 PetriNetUnfolderBase]: 4087/6560 cut-off events. [2024-06-03 20:21:52,866 INFO L125 PetriNetUnfolderBase]: For 3864/3864 co-relation queries the response was YES. [2024-06-03 20:21:52,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14703 conditions, 6560 events. 4087/6560 cut-off events. For 3864/3864 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 46400 event pairs, 831 based on Foata normal form. 117/6530 useless extension candidates. Maximal degree in co-relation 11350. Up to 2342 conditions per place. [2024-06-03 20:21:52,886 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2024-06-03 20:21:52,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 108 transitions, 480 flow [2024-06-03 20:21:52,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 20:21:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 20:21:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-06-03 20:21:52,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-06-03 20:21:52,888 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 169 flow. Second operand 5 states and 182 transitions. [2024-06-03 20:21:52,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 108 transitions, 480 flow [2024-06-03 20:21:52,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 108 transitions, 472 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-03 20:21:52,895 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-03 20:21:52,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-03 20:21:52,896 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2024-06-03 20:21:52,896 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-03 20:21:52,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-03 20:21:52,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-03 20:21:52,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-03 20:21:52,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-03 20:21:52,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-03 20:21:52,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-03 20:21:52,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-03 20:21:52,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-03 20:21:52,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-03 20:21:52,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-03 20:21:52,900 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-03 20:21:52,903 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 20:21:52,903 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 20:21:52,906 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-03 20:21:52,906 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-03 20:21:52,907 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 08:21:52 BasicIcfg [2024-06-03 20:21:52,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 20:21:52,908 INFO L158 Benchmark]: Toolchain (without parser) took 5514.29ms. Allocated memory was 148.9MB in the beginning and 562.0MB in the end (delta: 413.1MB). Free memory was 79.0MB in the beginning and 157.3MB in the end (delta: -78.4MB). Peak memory consumption was 351.6MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,908 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 20:21:52,908 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 20:21:52,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.33ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 108.4MB in the end (delta: -29.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.81ms. Allocated memory is still 148.9MB. Free memory was 108.4MB in the beginning and 105.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,909 INFO L158 Benchmark]: Boogie Preprocessor took 59.29ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 102.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,909 INFO L158 Benchmark]: RCFGBuilder took 821.90ms. Allocated memory is still 148.9MB. Free memory was 102.1MB in the beginning and 79.6MB in the end (delta: 22.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,909 INFO L158 Benchmark]: TraceAbstraction took 4233.82ms. Allocated memory was 148.9MB in the beginning and 562.0MB in the end (delta: 413.1MB). Free memory was 78.8MB in the beginning and 157.3MB in the end (delta: -78.5MB). Peak memory consumption was 349.0MB. Max. memory is 16.1GB. [2024-06-03 20:21:52,911 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.33ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 108.4MB in the end (delta: -29.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.81ms. Allocated memory is still 148.9MB. Free memory was 108.4MB in the beginning and 105.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.29ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 102.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 821.90ms. Allocated memory is still 148.9MB. Free memory was 102.1MB in the beginning and 79.6MB in the end (delta: 22.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4233.82ms. Allocated memory was 148.9MB in the beginning and 562.0MB in the end (delta: 413.1MB). Free memory was 78.8MB in the beginning and 157.3MB in the end (delta: -78.5MB). Peak memory consumption was 349.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 148]: 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 9 procedures, 75 locations, 8 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 427 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1040 IncrementalHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 19 mSDtfsCounter, 1040 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 20:21:52,934 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