./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:06:19,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:06:20,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:06:20,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:06:20,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:06:20,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:06:20,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:06:20,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:06:20,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:06:20,047 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:06:20,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:06:20,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:06:20,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:06:20,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:06:20,048 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:06:20,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:06:20,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:06:20,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:06:20,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:06:20,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:06:20,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:06:20,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:06:20,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:06:20,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:06:20,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:06:20,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:06:20,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:06:20,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:06:20,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:06:20,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:06:20,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:06:20,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:06:20,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:06:20,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:06:20,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:06:20,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:06:20,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:06:20,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:06:20,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:06:20,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:06:20,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:06:20,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:06:20,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:06:20,056 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:06:20,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:06:20,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:06:20,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:06:20,276 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:06:20,277 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:06:20,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml [2024-02-07 19:06:20,344 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:06:20,345 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:06:20,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-02-07 19:06:21,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:06:21,793 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:06:21,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-02-07 19:06:21,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/050a94d40/0a6ce7541abc4cbaa42e139c840a3371/FLAGfdd3fa4e6 [2024-02-07 19:06:21,823 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/050a94d40/0a6ce7541abc4cbaa42e139c840a3371 [2024-02-07 19:06:21,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:06:21,825 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:06:21,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:06:21,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:06:21,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:06:21,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:20" (1/2) ... [2024-02-07 19:06:21,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3b0bd2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:21, skipping insertion in model container [2024-02-07 19:06:21,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:20" (1/2) ... [2024-02-07 19:06:21,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61470aed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:21, skipping insertion in model container [2024-02-07 19:06:21,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:06:21" (2/2) ... [2024-02-07 19:06:21,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3b0bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:21, skipping insertion in model container [2024-02-07 19:06:21,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:06:21" (2/2) ... [2024-02-07 19:06:21,835 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:06:21,859 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:06:21,860 INFO L76 edCorrectnessWitness]: Location invariant before [L699-L699] (((((0 <= g) && (1 <= g)) && (g <= 2)) && (g <= 127)) && (g != 0)) && (g == 1 || g == 2) [2024-02-07 19:06:21,860 INFO L76 edCorrectnessWitness]: Location invariant before [L688-L688] g == 1 [2024-02-07 19:06:21,860 INFO L76 edCorrectnessWitness]: Location invariant before [L690-L690] g == 2 [2024-02-07 19:06:21,904 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:06:22,059 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-02-07 19:06:22,200 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:06:22,210 INFO L206 MainTranslator]: Completed pre-run [2024-02-07 19:06:22,222 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:06:22,295 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:06:22,319 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:06:22,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22 WrapperNode [2024-02-07 19:06:22,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:06:22,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:06:22,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:06:22,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:06:22,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,346 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2024-02-07 19:06:22,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:06:22,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:06:22,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:06:22,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:06:22,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,367 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 1, 5, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0]. [2024-02-07 19:06:22,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:06:22,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:06:22,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:06:22,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:06:22,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (1/1) ... [2024-02-07 19:06:22,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:06:22,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:06:22,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:06:22,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:06:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:06:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:06:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:06:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:06:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 19:06:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:06:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:06:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:06:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 19:06:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:06:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:06:22,431 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:06:22,585 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:06:22,587 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:06:22,727 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:06:22,727 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:06:22,938 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:06:22,939 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:06:22,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:06:22 BoogieIcfgContainer [2024-02-07 19:06:22,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:06:22,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:06:22,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:06:22,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:06:22,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:20" (1/4) ... [2024-02-07 19:06:22,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abd92ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:06:22, skipping insertion in model container [2024-02-07 19:06:22,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:06:21" (2/4) ... [2024-02-07 19:06:22,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abd92ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:06:22, skipping insertion in model container [2024-02-07 19:06:22,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:22" (3/4) ... [2024-02-07 19:06:22,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abd92ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:06:22, skipping insertion in model container [2024-02-07 19:06:22,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:06:22" (4/4) ... [2024-02-07 19:06:22,946 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-02-07 19:06:22,959 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:06:22,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-02-07 19:06:22,960 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:06:22,982 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:06:23,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 64 flow [2024-02-07 19:06:23,040 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2024-02-07 19:06:23,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:06:23,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-02-07 19:06:23,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 64 flow [2024-02-07 19:06:23,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 61 flow [2024-02-07 19:06:23,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:06:23,056 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;@126db341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:06:23,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-02-07 19:06:23,062 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:06:23,065 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-02-07 19:06:23,066 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:06:23,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:23,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:23,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 19:06:23,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash -549365131, now seen corresponding path program 1 times [2024-02-07 19:06:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:23,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713619350] [2024-02-07 19:06:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:23,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713619350] [2024-02-07 19:06:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713619350] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:23,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:23,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:06:23,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048566284] [2024-02-07 19:06:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:23,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:23,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-02-07 19:06:23,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:23,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-02-07 19:06:23,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:23,413 INFO L124 PetriNetUnfolderBase]: 60/169 cut-off events. [2024-02-07 19:06:23,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:06:23,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 169 events. 60/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 708 event pairs, 42 based on Foata normal form. 10/168 useless extension candidates. Maximal degree in co-relation 306. Up to 100 conditions per place. [2024-02-07 19:06:23,416 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 22 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2024-02-07 19:06:23,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 117 flow [2024-02-07 19:06:23,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-02-07 19:06:23,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-02-07 19:06:23,427 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 61 flow. Second operand 3 states and 58 transitions. [2024-02-07 19:06:23,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 117 flow [2024-02-07 19:06:23,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:06:23,431 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 64 flow [2024-02-07 19:06:23,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2024-02-07 19:06:23,435 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-02-07 19:06:23,435 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 64 flow [2024-02-07 19:06:23,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:23,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:23,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:06:23,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 19:06:23,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash -994826524, now seen corresponding path program 1 times [2024-02-07 19:06:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940658131] [2024-02-07 19:06:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:23,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940658131] [2024-02-07 19:06:23,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940658131] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:23,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:23,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:06:23,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214557626] [2024-02-07 19:06:23,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:23,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:23,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-02-07 19:06:23,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:23,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-02-07 19:06:23,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:23,638 INFO L124 PetriNetUnfolderBase]: 54/145 cut-off events. [2024-02-07 19:06:23,638 INFO L125 PetriNetUnfolderBase]: For 25/26 co-relation queries the response was YES. [2024-02-07 19:06:23,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 145 events. 54/145 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 565 event pairs, 36 based on Foata normal form. 8/149 useless extension candidates. Maximal degree in co-relation 287. Up to 86 conditions per place. [2024-02-07 19:06:23,642 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 18 selfloop transitions, 3 changer transitions 2/31 dead transitions. [2024-02-07 19:06:23,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 116 flow [2024-02-07 19:06:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-02-07 19:06:23,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-02-07 19:06:23,644 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 64 flow. Second operand 3 states and 55 transitions. [2024-02-07 19:06:23,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 116 flow [2024-02-07 19:06:23,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:06:23,647 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 56 flow [2024-02-07 19:06:23,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2024-02-07 19:06:23,648 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2024-02-07 19:06:23,648 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 56 flow [2024-02-07 19:06:23,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:23,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:23,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:06:23,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 19:06:23,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1749423730, now seen corresponding path program 1 times [2024-02-07 19:06:23,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:23,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649729197] [2024-02-07 19:06:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:23,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:23,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649729197] [2024-02-07 19:06:23,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649729197] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:23,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:23,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:23,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816784384] [2024-02-07 19:06:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:23,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:23,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:23,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:23,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-02-07 19:06:23,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:23,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-02-07 19:06:23,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:23,882 INFO L124 PetriNetUnfolderBase]: 66/165 cut-off events. [2024-02-07 19:06:23,882 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-02-07 19:06:23,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 165 events. 66/165 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 580 event pairs, 28 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 328. Up to 72 conditions per place. [2024-02-07 19:06:23,886 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 19 selfloop transitions, 3 changer transitions 14/42 dead transitions. [2024-02-07 19:06:23,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 168 flow [2024-02-07 19:06:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:06:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:06:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-02-07 19:06:23,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2024-02-07 19:06:23,889 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 56 flow. Second operand 5 states and 78 transitions. [2024-02-07 19:06:23,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 168 flow [2024-02-07 19:06:23,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:06:23,891 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 63 flow [2024-02-07 19:06:23,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2024-02-07 19:06:23,893 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2024-02-07 19:06:23,893 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 63 flow [2024-02-07 19:06:23,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:23,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:23,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:23,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:06:23,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 19:06:23,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:23,895 INFO L85 PathProgramCache]: Analyzing trace with hash 593306153, now seen corresponding path program 1 times [2024-02-07 19:06:23,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633972734] [2024-02-07 19:06:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:24,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633972734] [2024-02-07 19:06:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633972734] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:24,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:24,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428132710] [2024-02-07 19:06:24,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:24,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:24,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:24,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:24,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 30 [2024-02-07 19:06:24,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:24,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:24,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 30 [2024-02-07 19:06:24,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:24,132 INFO L124 PetriNetUnfolderBase]: 12/71 cut-off events. [2024-02-07 19:06:24,132 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-07 19:06:24,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 71 events. 12/71 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 167 event pairs, 5 based on Foata normal form. 7/78 useless extension candidates. Maximal degree in co-relation 131. Up to 32 conditions per place. [2024-02-07 19:06:24,133 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 9 selfloop transitions, 5 changer transitions 2/25 dead transitions. [2024-02-07 19:06:24,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 99 flow [2024-02-07 19:06:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:06:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:06:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2024-02-07 19:06:24,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-02-07 19:06:24,134 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 63 flow. Second operand 4 states and 74 transitions. [2024-02-07 19:06:24,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 99 flow [2024-02-07 19:06:24,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 89 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-02-07 19:06:24,135 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 63 flow [2024-02-07 19:06:24,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=63, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-02-07 19:06:24,152 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2024-02-07 19:06:24,153 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 63 flow [2024-02-07 19:06:24,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:24,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:24,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:24,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:06:24,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 19:06:24,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 723567213, now seen corresponding path program 2 times [2024-02-07 19:06:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:24,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705582341] [2024-02-07 19:06:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:24,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:24,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705582341] [2024-02-07 19:06:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705582341] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:06:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283189674] [2024-02-07 19:06:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:24,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 19:06:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 19:06:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-07 19:06:24,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 30 [2024-02-07 19:06:24,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:24,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:24,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 30 [2024-02-07 19:06:24,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:24,352 INFO L124 PetriNetUnfolderBase]: 10/52 cut-off events. [2024-02-07 19:06:24,353 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-02-07 19:06:24,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 52 events. 10/52 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 6 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 98. Up to 22 conditions per place. [2024-02-07 19:06:24,353 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2024-02-07 19:06:24,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 95 flow [2024-02-07 19:06:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:06:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:06:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-02-07 19:06:24,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-02-07 19:06:24,355 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 63 flow. Second operand 4 states and 73 transitions. [2024-02-07 19:06:24,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 95 flow [2024-02-07 19:06:24,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:06:24,356 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-02-07 19:06:24,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-02-07 19:06:24,356 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2024-02-07 19:06:24,356 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-02-07 19:06:24,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:24,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 7 remaining) [2024-02-07 19:06:24,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-02-07 19:06:24,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-02-07 19:06:24,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 7 remaining) [2024-02-07 19:06:24,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 7 remaining) [2024-02-07 19:06:24,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 7 remaining) [2024-02-07 19:06:24,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 7 remaining) [2024-02-07 19:06:24,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:06:24,361 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-02-07 19:06:24,365 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:06:24,365 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:06:24,368 INFO L503 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-02-07 19:06:24,368 INFO L504 ceAbstractionStarter]: WitnessConsidered=3 [2024-02-07 19:06:24,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:06:24 BasicIcfg [2024-02-07 19:06:24,369 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:06:24,369 INFO L158 Benchmark]: Toolchain (without parser) took 2544.17ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 84.7MB in the beginning and 85.7MB in the end (delta: -966.7kB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,370 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 136.3MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:06:24,370 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:06:24,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.58ms. Allocated memory is still 136.3MB. Free memory was 84.7MB in the beginning and 61.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.43ms. Allocated memory is still 136.3MB. Free memory was 61.3MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,371 INFO L158 Benchmark]: Boogie Preprocessor took 28.49ms. Allocated memory is still 136.3MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,371 INFO L158 Benchmark]: RCFGBuilder took 562.94ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 57.1MB in the beginning and 152.4MB in the end (delta: -95.3MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,371 INFO L158 Benchmark]: TraceAbstraction took 1428.31ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 85.7MB in the end (delta: 66.7MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2024-02-07 19:06:24,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 136.3MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.58ms. Allocated memory is still 136.3MB. Free memory was 84.7MB in the beginning and 61.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.43ms. Allocated memory is still 136.3MB. Free memory was 61.3MB in the beginning and 59.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.49ms. Allocated memory is still 136.3MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.94ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 57.1MB in the beginning and 152.4MB in the end (delta: -95.3MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1428.31ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 85.7MB in the end (delta: 66.7MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 45 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 9 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=1, InterpolantAutomatonStates: 19, 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, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 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! [2024-02-07 19:06:24,398 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