./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/security.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb4cb34f 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/security.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.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-eb4cb34-m [2024-06-21 20:27:52,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 20:27:52,856 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 20:27:52,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 20:27:52,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 20:27:52,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 20:27:52,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 20:27:52,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 20:27:52,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 20:27:52,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 20:27:52,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 20:27:52,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 20:27:52,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 20:27:52,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 20:27:52,903 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 20:27:52,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 20:27:52,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 20:27:52,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 20:27:52,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 20:27:52,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 20:27:52,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 20:27:52,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 20:27:52,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 20:27:52,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 20:27:52,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 20:27:52,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 20:27:52,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 20:27:52,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 20:27:52,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 20:27:52,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 20:27:52,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 20:27:52,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 20:27:52,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 20:27:52,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 20:27:52,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 20:27:52,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 20:27:52,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 20:27:52,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 20:27:52,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 20:27:52,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 20:27:52,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 20:27:52,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 20:27:52,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 20:27:52,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 20:27:53,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 20:27:53,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 20:27:53,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 20:27:53,149 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 20:27:53,152 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 20:27:53,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/security.wvr.yml/witness.yml [2024-06-21 20:27:53,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 20:27:53,219 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 20:27:53,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2024-06-21 20:27:54,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 20:27:54,456 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 20:27:54,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2024-06-21 20:27:54,463 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1469248/e43c746fe2d9436a9ea86b79bff20585/FLAG06524a2bc [2024-06-21 20:27:54,473 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1469248/e43c746fe2d9436a9ea86b79bff20585 [2024-06-21 20:27:54,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 20:27:54,474 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 20:27:54,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 20:27:54,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 20:27:54,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 20:27:54,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:53" (1/2) ... [2024-06-21 20:27:54,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbbf3f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 08:27:54, skipping insertion in model container [2024-06-21 20:27:54,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:53" (1/2) ... [2024-06-21 20:27:54,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31bad8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 08:27:54, skipping insertion in model container [2024-06-21 20:27:54,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 08:27:54" (2/2) ... [2024-06-21 20:27:54,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbbf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54, skipping insertion in model container [2024-06-21 20:27:54,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 08:27:54" (2/2) ... [2024-06-21 20:27:54,482 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 20:27:54,494 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 20:27:54,495 INFO L97 edCorrectnessWitness]: Location invariant before [L71-L71] (((! multithreaded || (z1 == 0U || z1 == 1U)) && (! multithreaded || (x1 == 0U || x1 == 1U))) && (! multithreaded || (z2 == 0U || z2 == 1U))) && (! multithreaded || (x2 == 0U || x2 == 1U)) [2024-06-21 20:27:54,495 INFO L97 edCorrectnessWitness]: Location invariant before [L72-L72] (((! multithreaded || (z1 == 0U || z1 == 1U)) && (! multithreaded || (x1 == 0U || x1 == 1U))) && (! multithreaded || (z2 == 0U || z2 == 1U))) && (! multithreaded || (x2 == 0U || x2 == 1U)) [2024-06-21 20:27:54,495 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 20:27:54,495 INFO L106 edCorrectnessWitness]: ghost_update [L70-L70] multithreaded = 1; [2024-06-21 20:27:54,512 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 20:27:54,628 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 20:27:54,635 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 20:27:54,692 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 20:27:54,707 INFO L206 MainTranslator]: Completed translation [2024-06-21 20:27:54,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54 WrapperNode [2024-06-21 20:27:54,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 20:27:54,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 20:27:54,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 20:27:54,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 20:27:54,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,744 INFO L138 Inliner]: procedures = 20, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2024-06-21 20:27:54,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 20:27:54,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 20:27:54,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 20:27:54,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 20:27:54,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,779 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-21 20:27:54,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 20:27:54,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 20:27:54,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 20:27:54,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 20:27:54,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (1/1) ... [2024-06-21 20:27:54,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 20:27:54,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 20:27:54,827 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) [2024-06-21 20:27:54,830 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 [2024-06-21 20:27:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 20:27:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-21 20:27:54,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-21 20:27:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-21 20:27:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-21 20:27:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 20:27:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 20:27:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 20:27:54,860 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 20:27:54,946 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 20:27:54,948 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 20:27:55,070 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 20:27:55,071 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 20:27:55,195 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 20:27:55,201 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 20:27:55,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 08:27:55 BoogieIcfgContainer [2024-06-21 20:27:55,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 20:27:55,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 20:27:55,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 20:27:55,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 20:27:55,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 08:27:53" (1/4) ... [2024-06-21 20:27:55,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae4f930 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 08:27:55, skipping insertion in model container [2024-06-21 20:27:55,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 08:27:54" (2/4) ... [2024-06-21 20:27:55,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae4f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 08:27:55, skipping insertion in model container [2024-06-21 20:27:55,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 08:27:54" (3/4) ... [2024-06-21 20:27:55,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae4f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 08:27:55, skipping insertion in model container [2024-06-21 20:27:55,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 08:27:55" (4/4) ... [2024-06-21 20:27:55,214 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2024-06-21 20:27:55,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 20:27:55,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-21 20:27:55,230 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 20:27:55,282 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-21 20:27:55,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 48 flow [2024-06-21 20:27:55,336 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-06-21 20:27:55,338 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-21 20:27:55,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-21 20:27:55,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 17 transitions, 48 flow [2024-06-21 20:27:55,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 11 transitions, 28 flow [2024-06-21 20:27:55,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 20:27:55,364 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;@69f6c854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 20:27:55,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-21 20:27:55,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 20:27:55,372 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-21 20:27:55,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 20:27:55,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:55,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 20:27:55,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 20:27:55,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:55,378 INFO L85 PathProgramCache]: Analyzing trace with hash 192691547, now seen corresponding path program 1 times [2024-06-21 20:27:55,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:55,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505790213] [2024-06-21 20:27:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:55,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 20:27:55,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505790213] [2024-06-21 20:27:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505790213] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 20:27:55,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348840834] [2024-06-21 20:27:55,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:55,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 20:27:55,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 20:27:55,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 20:27:55,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-21 20:27:55,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-21 20:27:55,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:55,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-21 20:27:55,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:55,835 INFO L124 PetriNetUnfolderBase]: 10/30 cut-off events. [2024-06-21 20:27:55,836 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-21 20:27:55,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 30 events. 10/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 58. Up to 24 conditions per place. [2024-06-21 20:27:55,838 INFO L140 encePairwiseOnDemand]: 12/17 looper letters, 13 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2024-06-21 20:27:55,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 75 flow [2024-06-21 20:27:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 20:27:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 20:27:55,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2024-06-21 20:27:55,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2024-06-21 20:27:55,850 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 28 flow. Second operand 3 states and 30 transitions. [2024-06-21 20:27:55,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 75 flow [2024-06-21 20:27:55,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 20:27:55,854 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 47 flow [2024-06-21 20:27:55,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2024-06-21 20:27:55,859 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2024-06-21 20:27:55,859 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 47 flow [2024-06-21 20:27:55,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-21 20:27:55,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:55,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-21 20:27:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 20:27:55,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 20:27:55,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:55,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1678471230, now seen corresponding path program 1 times [2024-06-21 20:27:55,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:55,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130834971] [2024-06-21 20:27:55,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:55,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 20:27:56,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:56,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130834971] [2024-06-21 20:27:56,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130834971] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:56,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:56,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 20:27:56,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278255630] [2024-06-21 20:27:56,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:56,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 20:27:56,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:56,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 20:27:56,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 20:27:56,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-21 20:27:56,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-06-21 20:27:56,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:56,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-21 20:27:56,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:56,148 INFO L124 PetriNetUnfolderBase]: 9/27 cut-off events. [2024-06-21 20:27:56,149 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-21 20:27:56,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 27 events. 9/27 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 73. Up to 15 conditions per place. [2024-06-21 20:27:56,150 INFO L140 encePairwiseOnDemand]: 12/17 looper letters, 12 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2024-06-21 20:27:56,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 17 transitions, 87 flow [2024-06-21 20:27:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 20:27:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 20:27:56,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2024-06-21 20:27:56,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 20:27:56,152 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 47 flow. Second operand 4 states and 34 transitions. [2024-06-21 20:27:56,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 17 transitions, 87 flow [2024-06-21 20:27:56,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 17 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 20:27:56,154 INFO L231 Difference]: Finished difference. Result has 21 places, 12 transitions, 52 flow [2024-06-21 20:27:56,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=21, PETRI_TRANSITIONS=12} [2024-06-21 20:27:56,155 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2024-06-21 20:27:56,155 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 52 flow [2024-06-21 20:27:56,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-06-21 20:27:56,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:56,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:56,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 20:27:56,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 20:27:56,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1316716428, now seen corresponding path program 1 times [2024-06-21 20:27:56,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:56,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297401519] [2024-06-21 20:27:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 20:27:56,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297401519] [2024-06-21 20:27:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297401519] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:56,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 20:27:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994624240] [2024-06-21 20:27:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 20:27:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 20:27:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 20:27:56,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-21 20:27:56,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 12 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-06-21 20:27:56,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:56,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-21 20:27:56,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:56,424 INFO L124 PetriNetUnfolderBase]: 8/25 cut-off events. [2024-06-21 20:27:56,424 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-06-21 20:27:56,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 25 events. 8/25 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 72. Up to 16 conditions per place. [2024-06-21 20:27:56,426 INFO L140 encePairwiseOnDemand]: 13/17 looper letters, 12 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2024-06-21 20:27:56,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 96 flow [2024-06-21 20:27:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 20:27:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 20:27:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-06-21 20:27:56,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2024-06-21 20:27:56,428 INFO L175 Difference]: Start difference. First operand has 21 places, 12 transitions, 52 flow. Second operand 4 states and 33 transitions. [2024-06-21 20:27:56,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 96 flow [2024-06-21 20:27:56,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 88 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-21 20:27:56,430 INFO L231 Difference]: Finished difference. Result has 23 places, 12 transitions, 56 flow [2024-06-21 20:27:56,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=12} [2024-06-21 20:27:56,431 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2024-06-21 20:27:56,431 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 12 transitions, 56 flow [2024-06-21 20:27:56,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-06-21 20:27:56,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:56,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:56,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 20:27:56,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 20:27:56,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:56,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2131464353, now seen corresponding path program 1 times [2024-06-21 20:27:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917684950] [2024-06-21 20:27:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:56,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 20:27:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:56,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917684950] [2024-06-21 20:27:56,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917684950] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:56,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:56,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 20:27:56,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370132387] [2024-06-21 20:27:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:56,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 20:27:56,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:56,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 20:27:56,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 20:27:56,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-21 20:27:56,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 12 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-21 20:27:56,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:56,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-21 20:27:56,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:56,798 INFO L124 PetriNetUnfolderBase]: 7/26 cut-off events. [2024-06-21 20:27:56,798 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-06-21 20:27:56,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 26 events. 7/26 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 1 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 80. Up to 13 conditions per place. [2024-06-21 20:27:56,800 INFO L140 encePairwiseOnDemand]: 14/17 looper letters, 9 selfloop transitions, 1 changer transitions 6/17 dead transitions. [2024-06-21 20:27:56,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 100 flow [2024-06-21 20:27:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 20:27:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 20:27:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2024-06-21 20:27:56,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-06-21 20:27:56,802 INFO L175 Difference]: Start difference. First operand has 23 places, 12 transitions, 56 flow. Second operand 4 states and 32 transitions. [2024-06-21 20:27:56,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 100 flow [2024-06-21 20:27:56,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 92 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-21 20:27:56,805 INFO L231 Difference]: Finished difference. Result has 25 places, 10 transitions, 42 flow [2024-06-21 20:27:56,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=10} [2024-06-21 20:27:56,807 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2024-06-21 20:27:56,807 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 10 transitions, 42 flow [2024-06-21 20:27:56,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-21 20:27:56,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 20:27:56,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 20:27:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 20:27:56,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 20:27:56,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 20:27:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2131175123, now seen corresponding path program 2 times [2024-06-21 20:27:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 20:27:56,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835098140] [2024-06-21 20:27:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 20:27:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 20:27:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 20:27:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 20:27:57,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 20:27:57,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835098140] [2024-06-21 20:27:57,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835098140] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 20:27:57,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 20:27:57,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 20:27:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093987422] [2024-06-21 20:27:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 20:27:57,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 20:27:57,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 20:27:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 20:27:57,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 20:27:57,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 17 [2024-06-21 20:27:57,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 10 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-21 20:27:57,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 20:27:57,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 17 [2024-06-21 20:27:57,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 20:27:57,041 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-06-21 20:27:57,041 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-21 20:27:57,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 13 events. 2/13 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. [2024-06-21 20:27:57,041 INFO L140 encePairwiseOnDemand]: 14/17 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2024-06-21 20:27:57,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 56 flow [2024-06-21 20:27:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 20:27:57,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 20:27:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2024-06-21 20:27:57,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39705882352941174 [2024-06-21 20:27:57,043 INFO L175 Difference]: Start difference. First operand has 25 places, 10 transitions, 42 flow. Second operand 4 states and 27 transitions. [2024-06-21 20:27:57,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 56 flow [2024-06-21 20:27:57,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 47 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-21 20:27:57,043 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-06-21 20:27:57,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2024-06-21 20:27:57,044 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2024-06-21 20:27:57,046 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-06-21 20:27:57,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-06-21 20:27:57,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-21 20:27:57,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-21 20:27:57,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-21 20:27:57,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-21 20:27:57,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-21 20:27:57,050 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-21 20:27:57,052 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 20:27:57,052 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 20:27:57,055 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-21 20:27:57,055 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-21 20:27:57,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 08:27:57 BasicIcfg [2024-06-21 20:27:57,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 20:27:57,056 INFO L158 Benchmark]: Toolchain (without parser) took 2581.75ms. Allocated memory was 174.1MB in the beginning and 234.9MB in the end (delta: 60.8MB). Free memory was 144.5MB in the beginning and 105.3MB in the end (delta: 39.2MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,056 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 174.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 20:27:57,056 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 20:27:57,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.11ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 130.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.58ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,060 INFO L158 Benchmark]: Boogie Preprocessor took 55.56ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,061 INFO L158 Benchmark]: RCFGBuilder took 400.62ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 122.9MB in the end (delta: 3.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,062 INFO L158 Benchmark]: TraceAbstraction took 1852.35ms. Allocated memory was 174.1MB in the beginning and 234.9MB in the end (delta: 60.8MB). Free memory was 122.0MB in the beginning and 105.3MB in the end (delta: 16.7MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2024-06-21 20:27:57,063 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 0.17ms. Allocated memory is still 174.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.11ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 130.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.58ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.56ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.62ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 122.9MB in the end (delta: 3.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1852.35ms. Allocated memory was 174.1MB in the beginning and 234.9MB in the end (delta: 60.8MB). Free memory was 122.0MB in the beginning and 105.3MB in the end (delta: 16.7MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 72]: 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 5 procedures, 24 locations, 4 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: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, 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, 1.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-21 20:27:57,090 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