./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-04 14:30:21,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 14:30:21,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 14:30:21,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 14:30:21,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 14:30:21,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 14:30:21,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 14:30:21,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 14:30:21,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 14:30:21,120 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 14:30:21,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 14:30:21,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 14:30:21,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 14:30:21,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 14:30:21,122 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 14:30:21,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 14:30:21,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 14:30:21,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 14:30:21,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 14:30:21,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 14:30:21,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 14:30:21,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 14:30:21,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 14:30:21,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 14:30:21,125 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 14:30:21,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 14:30:21,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 14:30:21,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 14:30:21,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 14:30:21,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 14:30:21,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 14:30:21,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 14:30:21,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 14:30:21,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 14:30:21,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 14:30:21,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 14:30:21,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 14:30:21,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 14:30:21,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 14:30:21,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 14:30:21,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 14:30:21,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 14:30:21,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 14:30:21,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 14:30:21,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 14:30:21,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 14:30:21,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 14:30:21,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 14:30:21,345 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 14:30:21,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-06-04 14:30:22,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 14:30:22,617 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 14:30:22,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-06-04 14:30:22,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41c9240f/1b25ff257b384a5abfcf4af79380b608/FLAG03a3c43af [2024-06-04 14:30:22,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41c9240f/1b25ff257b384a5abfcf4af79380b608 [2024-06-04 14:30:22,637 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 14:30:22,642 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 14:30:22,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml [2024-06-04 14:30:22,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 14:30:22,718 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 14:30:22,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 14:30:22,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 14:30:22,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 14:30:22,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 02:30:22" (1/2) ... [2024-06-04 14:30:22,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6500f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 02:30:22, skipping insertion in model container [2024-06-04 14:30:22,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 02:30:22" (1/2) ... [2024-06-04 14:30:22,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@26479058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 02:30:22, skipping insertion in model container [2024-06-04 14:30:22,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:30:22" (2/2) ... [2024-06-04 14:30:22,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6500f2be and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:22, skipping insertion in model container [2024-06-04 14:30:22,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:30:22" (2/2) ... [2024-06-04 14:30:22,728 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 14:30:22,747 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 14:30:22,748 INFO L97 edCorrectnessWitness]: Location invariant before [L143-L143] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-04 14:30:22,748 INFO L97 edCorrectnessWitness]: Location invariant before [L144-L144] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-04 14:30:22,749 INFO L97 edCorrectnessWitness]: Location invariant before [L141-L141] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-04 14:30:22,749 INFO L97 edCorrectnessWitness]: Location invariant before [L142-L142] (! multithreaded || 0 <= j) && (! multithreaded || 0 <= i) [2024-06-04 14:30:22,749 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 14:30:22,749 INFO L106 edCorrectnessWitness]: ghost_update [L140-L140] multithreaded = 1; [2024-06-04 14:30:22,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 14:30:22,915 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 14:30:22,921 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 14:30:23,003 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 14:30:23,015 INFO L206 MainTranslator]: Completed translation [2024-06-04 14:30:23,016 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23 WrapperNode [2024-06-04 14:30:23,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 14:30:23,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 14:30:23,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 14:30:23,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 14:30:23,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,072 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 316 [2024-06-04 14:30:23,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 14:30:23,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 14:30:23,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 14:30:23,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 14:30:23,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,096 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-04 14:30:23,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 14:30:23,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 14:30:23,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 14:30:23,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 14:30:23,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (1/1) ... [2024-06-04 14:30:23,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 14:30:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 14:30:23,144 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) [2024-06-04 14:30:23,193 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 [2024-06-04 14:30:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 14:30:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 14:30:23,222 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 14:30:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 14:30:23,222 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 14:30:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 14:30:23,222 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 14:30:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-04 14:30:23,222 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-04 14:30:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 14:30:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 14:30:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-04 14:30:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-04 14:30:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 14:30:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 14:30:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-04 14:30:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 14:30:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 14:30:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-04 14:30:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-04 14:30:23,228 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 14:30:23,388 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 14:30:23,390 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 14:30:23,661 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 14:30:23,661 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 14:30:23,933 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 14:30:23,933 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-04 14:30:23,934 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 02:30:23 BoogieIcfgContainer [2024-06-04 14:30:23,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 14:30:23,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 14:30:23,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 14:30:23,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 14:30:23,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 02:30:22" (1/4) ... [2024-06-04 14:30:23,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 02:30:23, skipping insertion in model container [2024-06-04 14:30:23,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:30:22" (2/4) ... [2024-06-04 14:30:23,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea3624 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 02:30:23, skipping insertion in model container [2024-06-04 14:30:23,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:30:23" (3/4) ... [2024-06-04 14:30:23,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea3624 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 02:30:23, skipping insertion in model container [2024-06-04 14:30:23,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 02:30:23" (4/4) ... [2024-06-04 14:30:23,943 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2024-06-04 14:30:23,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 14:30:23,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-04 14:30:23,956 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 14:30:24,010 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-04 14:30:24,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 56 transitions, 140 flow [2024-06-04 14:30:24,074 INFO L124 PetriNetUnfolderBase]: 6/52 cut-off events. [2024-06-04 14:30:24,075 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-04 14:30:24,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 52 events. 6/52 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-06-04 14:30:24,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 56 transitions, 140 flow [2024-06-04 14:30:24,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 50 transitions, 121 flow [2024-06-04 14:30:24,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 14:30:24,103 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;@74e25e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 14:30:24,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-04 14:30:24,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 14:30:24,110 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-06-04 14:30:24,110 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 14:30:24,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:30:24,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 14:30:24,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 14:30:24,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:30:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash -8232740, now seen corresponding path program 1 times [2024-06-04 14:30:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:30:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154390397] [2024-06-04 14:30:24,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:30:24,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:30:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:30:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:30:24,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:30:24,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154390397] [2024-06-04 14:30:24,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154390397] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:30:24,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:30:24,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 14:30:24,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32667053] [2024-06-04 14:30:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:30:24,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 14:30:24,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:30:24,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 14:30:24,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 14:30:24,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 56 [2024-06-04 14:30:24,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-06-04 14:30:24,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:30:24,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 56 [2024-06-04 14:30:24,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:30:24,977 INFO L124 PetriNetUnfolderBase]: 1245/2101 cut-off events. [2024-06-04 14:30:24,977 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-06-04 14:30:24,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 2101 events. 1245/2101 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 13619 event pairs, 448 based on Foata normal form. 54/2024 useless extension candidates. Maximal degree in co-relation 3515. Up to 1115 conditions per place. [2024-06-04 14:30:24,995 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 49 selfloop transitions, 2 changer transitions 3/71 dead transitions. [2024-06-04 14:30:24,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 71 transitions, 289 flow [2024-06-04 14:30:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 14:30:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 14:30:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-04 14:30:25,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7202380952380952 [2024-06-04 14:30:25,008 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 121 flow. Second operand 3 states and 121 transitions. [2024-06-04 14:30:25,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 71 transitions, 289 flow [2024-06-04 14:30:25,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 71 transitions, 265 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-04 14:30:25,019 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 126 flow [2024-06-04 14:30:25,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-06-04 14:30:25,023 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2024-06-04 14:30:25,024 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 126 flow [2024-06-04 14:30:25,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-06-04 14:30:25,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:30:25,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 14:30:25,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 14:30:25,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 14:30:25,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:30:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash -975527687, now seen corresponding path program 1 times [2024-06-04 14:30:25,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:30:25,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800513847] [2024-06-04 14:30:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:30:25,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:30:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:30:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:30:25,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:30:25,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800513847] [2024-06-04 14:30:25,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800513847] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:30:25,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:30:25,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 14:30:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706404759] [2024-06-04 14:30:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:30:25,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-04 14:30:25,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:30:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-04 14:30:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-04 14:30:25,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 56 [2024-06-04 14:30:25,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-06-04 14:30:25,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:30:25,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 56 [2024-06-04 14:30:25,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:30:25,390 INFO L124 PetriNetUnfolderBase]: 1029/1805 cut-off events. [2024-06-04 14:30:25,391 INFO L125 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2024-06-04 14:30:25,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 1805 events. 1029/1805 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 11645 event pairs, 408 based on Foata normal form. 80/1820 useless extension candidates. Maximal degree in co-relation 1484. Up to 818 conditions per place. [2024-06-04 14:30:25,396 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-06-04 14:30:25,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 257 flow [2024-06-04 14:30:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-04 14:30:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-04 14:30:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-06-04 14:30:25,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6160714285714286 [2024-06-04 14:30:25,398 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 126 flow. Second operand 4 states and 138 transitions. [2024-06-04 14:30:25,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 257 flow [2024-06-04 14:30:25,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 67 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 14:30:25,399 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-06-04 14:30:25,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-06-04 14:30:25,400 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -6 predicate places. [2024-06-04 14:30:25,400 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-06-04 14:30:25,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-06-04 14:30:25,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-04 14:30:25,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-04 14:30:25,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-04 14:30:25,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-04 14:30:25,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-04 14:30:25,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-04 14:30:25,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-04 14:30:25,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-04 14:30:25,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 14:30:25,404 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-04 14:30:25,407 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 14:30:25,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 14:30:25,410 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-04 14:30:25,410 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-04 14:30:25,411 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 02:30:25 BasicIcfg [2024-06-04 14:30:25,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 14:30:25,411 INFO L158 Benchmark]: Toolchain (without parser) took 2693.11ms. Allocated memory was 218.1MB in the beginning and 350.2MB in the end (delta: 132.1MB). Free memory was 145.4MB in the beginning and 223.6MB in the end (delta: -78.2MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,411 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 14:30:25,412 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 218.1MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 14:30:25,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.30ms. Allocated memory is still 218.1MB. Free memory was 145.2MB in the beginning and 128.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.29ms. Allocated memory is still 218.1MB. Free memory was 128.6MB in the beginning and 125.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,413 INFO L158 Benchmark]: Boogie Preprocessor took 38.18ms. Allocated memory is still 218.1MB. Free memory was 125.8MB in the beginning and 122.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,413 INFO L158 Benchmark]: RCFGBuilder took 822.58ms. Allocated memory is still 218.1MB. Free memory was 122.3MB in the beginning and 91.7MB in the end (delta: 30.7MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,413 INFO L158 Benchmark]: TraceAbstraction took 1474.30ms. Allocated memory was 218.1MB in the beginning and 350.2MB in the end (delta: 132.1MB). Free memory was 90.4MB in the beginning and 223.6MB in the end (delta: -133.1MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-06-04 14:30:25,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 218.1MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.30ms. Allocated memory is still 218.1MB. Free memory was 145.2MB in the beginning and 128.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.29ms. Allocated memory is still 218.1MB. Free memory was 128.6MB in the beginning and 125.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.18ms. Allocated memory is still 218.1MB. Free memory was 125.8MB in the beginning and 122.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 822.58ms. Allocated memory is still 218.1MB. Free memory was 122.3MB in the beginning and 91.7MB in the end (delta: 30.7MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1474.30ms. Allocated memory was 218.1MB in the beginning and 350.2MB in the end (delta: 132.1MB). Free memory was 90.4MB in the beginning and 223.6MB in the end (delta: -133.1MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 141]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 142]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 143]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 144]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 13 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-04 14:30:25,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE