./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 04:36:48,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 04:36:48,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 04:36:48,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 04:36:48,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 04:36:48,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 04:36:48,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 04:36:48,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 04:36:48,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 04:36:48,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 04:36:48,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 04:36:48,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 04:36:48,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 04:36:48,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 04:36:48,997 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 04:36:48,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 04:36:48,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 04:36:48,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 04:36:48,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 04:36:48,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 04:36:49,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 04:36:49,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 04:36:49,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 04:36:49,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 04:36:49,002 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 04:36:49,002 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 04:36:49,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 04:36:49,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 04:36:49,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 04:36:49,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 04:36:49,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 04:36:49,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 04:36:49,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 04:36:49,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 04:36:49,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 04:36:49,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 04:36:49,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 04:36:49,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 04:36:49,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 04:36:49,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 04:36:49,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 04:36:49,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 04:36:49,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 04:36:49,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-28 04:36:49,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 04:36:49,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 04:36:49,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 04:36:49,307 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 04:36:49,308 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 04:36:49,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/popl20-bad-buffer-mult-alt.wvr.yml/witness.yml [2024-06-28 04:36:49,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 04:36:49,403 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 04:36:49,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-28 04:36:50,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 04:36:50,704 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 04:36:50,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-06-28 04:36:50,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc77bf932/ffcb619ce65742639a28dfe30db20eca/FLAG2dec2db39 [2024-06-28 04:36:50,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc77bf932/ffcb619ce65742639a28dfe30db20eca [2024-06-28 04:36:50,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 04:36:50,725 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 04:36:50,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 04:36:50,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 04:36:50,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 04:36:50,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 04:36:49" (1/2) ... [2024-06-28 04:36:50,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e4ef0d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 04:36:50, skipping insertion in model container [2024-06-28 04:36:50,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 04:36:49" (1/2) ... [2024-06-28 04:36:50,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@323d8dfb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 04:36:50, skipping insertion in model container [2024-06-28 04:36:50,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 04:36:50" (2/2) ... [2024-06-28 04:36:50,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e4ef0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:50, skipping insertion in model container [2024-06-28 04:36:50,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 04:36:50" (2/2) ... [2024-06-28 04:36:50,734 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 04:36:50,759 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 04:36:50,760 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] ((! multithreaded || 0 <= j) && (! multithreaded || 0 <= i)) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-28 04:36:50,760 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] ((! multithreaded || 0 <= j) && (! multithreaded || 0 <= i)) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-28 04:36:50,760 INFO L97 edCorrectnessWitness]: Location invariant before [L148-L148] ((! multithreaded || 0 <= j) && (! multithreaded || 0 <= i)) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-28 04:36:50,760 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] ((! multithreaded || 0 <= j) && (! multithreaded || 0 <= i)) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-28 04:36:50,760 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 04:36:50,761 INFO L106 edCorrectnessWitness]: ghost_update [L144-L144] multithreaded = 1; [2024-06-28 04:36:50,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 04:36:50,996 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 04:36:51,011 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 04:36:51,112 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 04:36:51,129 INFO L206 MainTranslator]: Completed translation [2024-06-28 04:36:51,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51 WrapperNode [2024-06-28 04:36:51,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 04:36:51,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 04:36:51,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 04:36:51,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 04:36:51,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,177 INFO L138 Inliner]: procedures = 25, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 320 [2024-06-28 04:36:51,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 04:36:51,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 04:36:51,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 04:36:51,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 04:36:51,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,215 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]. [2024-06-28 04:36:51,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 04:36:51,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 04:36:51,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 04:36:51,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 04:36:51,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (1/1) ... [2024-06-28 04:36:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 04:36:51,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 04:36:51,305 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) [2024-06-28 04:36:51,329 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 [2024-06-28 04:36:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 04:36:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-28 04:36:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-28 04:36:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-28 04:36:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-28 04:36:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-28 04:36:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-28 04:36:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-28 04:36:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-28 04:36:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 04:36:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 04:36:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-28 04:36:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-28 04:36:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 04:36:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 04:36:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-28 04:36:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 04:36:51,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 04:36:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-28 04:36:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-28 04:36:51,362 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 04:36:51,521 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 04:36:51,523 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 04:36:52,012 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 04:36:52,013 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 04:36:52,387 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 04:36:52,387 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-28 04:36:52,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 04:36:52 BoogieIcfgContainer [2024-06-28 04:36:52,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 04:36:52,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 04:36:52,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 04:36:52,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 04:36:52,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 04:36:49" (1/4) ... [2024-06-28 04:36:52,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71743d13 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 04:36:52, skipping insertion in model container [2024-06-28 04:36:52,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 04:36:50" (2/4) ... [2024-06-28 04:36:52,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71743d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 04:36:52, skipping insertion in model container [2024-06-28 04:36:52,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 04:36:51" (3/4) ... [2024-06-28 04:36:52,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71743d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 04:36:52, skipping insertion in model container [2024-06-28 04:36:52,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 04:36:52" (4/4) ... [2024-06-28 04:36:52,400 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2024-06-28 04:36:52,418 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 04:36:52,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-28 04:36:52,418 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 04:36:52,490 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-28 04:36:52,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 57 transitions, 142 flow [2024-06-28 04:36:52,570 INFO L124 PetriNetUnfolderBase]: 6/53 cut-off events. [2024-06-28 04:36:52,571 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-28 04:36:52,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 53 events. 6/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-06-28 04:36:52,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 57 transitions, 142 flow [2024-06-28 04:36:52,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 51 transitions, 123 flow [2024-06-28 04:36:52,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 04:36:52,604 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;@8c87d40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 04:36:52,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-28 04:36:52,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 04:36:52,612 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-06-28 04:36:52,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 04:36:52,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 04:36:52,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-28 04:36:52,614 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)] === [2024-06-28 04:36:52,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 04:36:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1576071364, now seen corresponding path program 1 times [2024-06-28 04:36:52,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 04:36:52,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135258532] [2024-06-28 04:36:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 04:36:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 04:36:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 04:36:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 04:36:52,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 04:36:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135258532] [2024-06-28 04:36:52,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135258532] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 04:36:52,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 04:36:52,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 04:36:52,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570376518] [2024-06-28 04:36:52,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 04:36:52,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 04:36:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 04:36:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 04:36:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 04:36:53,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-28 04:36:53,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-28 04:36:53,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 04:36:53,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-28 04:36:53,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 04:36:53,813 INFO L124 PetriNetUnfolderBase]: 3046/4720 cut-off events. [2024-06-28 04:36:53,814 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2024-06-28 04:36:53,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9055 conditions, 4720 events. 3046/4720 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 31151 event pairs, 743 based on Foata normal form. 81/4379 useless extension candidates. Maximal degree in co-relation 8387. Up to 3090 conditions per place. [2024-06-28 04:36:53,857 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 51 selfloop transitions, 3 changer transitions 2/74 dead transitions. [2024-06-28 04:36:53,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 299 flow [2024-06-28 04:36:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 04:36:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 04:36:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2024-06-28 04:36:53,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2024-06-28 04:36:53,871 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 123 flow. Second operand 3 states and 126 transitions. [2024-06-28 04:36:53,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 299 flow [2024-06-28 04:36:53,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 275 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-28 04:36:53,885 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 135 flow [2024-06-28 04:36:53,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2024-06-28 04:36:53,890 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2024-06-28 04:36:53,891 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 135 flow [2024-06-28 04:36:53,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-28 04:36:53,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 04:36:53,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 04:36:53,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 04:36:53,893 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)] === [2024-06-28 04:36:53,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 04:36:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1117442855, now seen corresponding path program 1 times [2024-06-28 04:36:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 04:36:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496662172] [2024-06-28 04:36:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 04:36:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 04:36:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 04:36:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 04:36:54,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 04:36:54,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496662172] [2024-06-28 04:36:54,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496662172] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 04:36:54,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 04:36:54,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 04:36:54,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573729839] [2024-06-28 04:36:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 04:36:54,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 04:36:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 04:36:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 04:36:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 04:36:54,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-28 04:36:54,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-06-28 04:36:54,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 04:36:54,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-28 04:36:54,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 04:36:54,795 INFO L124 PetriNetUnfolderBase]: 3327/5167 cut-off events. [2024-06-28 04:36:54,795 INFO L125 PetriNetUnfolderBase]: For 555/555 co-relation queries the response was YES. [2024-06-28 04:36:54,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 5167 events. 3327/5167 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 35013 event pairs, 728 based on Foata normal form. 120/5011 useless extension candidates. Maximal degree in co-relation 2197. Up to 2412 conditions per place. [2024-06-28 04:36:54,841 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 67 selfloop transitions, 4 changer transitions 4/93 dead transitions. [2024-06-28 04:36:54,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 93 transitions, 380 flow [2024-06-28 04:36:54,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 04:36:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 04:36:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-06-28 04:36:54,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7324561403508771 [2024-06-28 04:36:54,849 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 135 flow. Second operand 4 states and 167 transitions. [2024-06-28 04:36:54,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 93 transitions, 380 flow [2024-06-28 04:36:54,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 93 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 04:36:54,855 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 150 flow [2024-06-28 04:36:54,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2024-06-28 04:36:54,856 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2024-06-28 04:36:54,856 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 150 flow [2024-06-28 04:36:54,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-06-28 04:36:54,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 04:36:54,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 04:36:54,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 04:36:54,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-28 04:36:54,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 04:36:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1360397167, now seen corresponding path program 1 times [2024-06-28 04:36:54,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 04:36:54,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725750163] [2024-06-28 04:36:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 04:36:54,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 04:36:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 04:36:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 04:36:54,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 04:36:54,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725750163] [2024-06-28 04:36:54,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725750163] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 04:36:54,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 04:36:54,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 04:36:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079825915] [2024-06-28 04:36:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 04:36:54,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 04:36:54,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 04:36:54,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 04:36:54,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 04:36:54,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-28 04:36:54,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 04:36:54,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 04:36:54,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-28 04:36:54,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 04:36:55,679 INFO L124 PetriNetUnfolderBase]: 3641/5781 cut-off events. [2024-06-28 04:36:55,679 INFO L125 PetriNetUnfolderBase]: For 1977/1977 co-relation queries the response was YES. [2024-06-28 04:36:55,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12727 conditions, 5781 events. 3641/5781 cut-off events. For 1977/1977 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 41161 event pairs, 987 based on Foata normal form. 117/5617 useless extension candidates. Maximal degree in co-relation 4980. Up to 2909 conditions per place. [2024-06-28 04:36:55,714 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 66 selfloop transitions, 4 changer transitions 6/94 dead transitions. [2024-06-28 04:36:55,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 94 transitions, 403 flow [2024-06-28 04:36:55,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 04:36:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 04:36:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-06-28 04:36:55,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2024-06-28 04:36:55,716 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 150 flow. Second operand 4 states and 166 transitions. [2024-06-28 04:36:55,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 94 transitions, 403 flow [2024-06-28 04:36:55,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 94 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 04:36:55,725 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 166 flow [2024-06-28 04:36:55,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-06-28 04:36:55,726 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-06-28 04:36:55,726 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 166 flow [2024-06-28 04:36:55,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 04:36:55,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 04:36:55,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 04:36:55,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 04:36:55,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-28 04:36:55,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 04:36:55,728 INFO L85 PathProgramCache]: Analyzing trace with hash 871256848, now seen corresponding path program 1 times [2024-06-28 04:36:55,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 04:36:55,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291580327] [2024-06-28 04:36:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 04:36:55,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 04:36:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 04:36:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 04:36:55,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 04:36:55,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291580327] [2024-06-28 04:36:55,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291580327] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 04:36:55,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 04:36:55,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 04:36:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241567461] [2024-06-28 04:36:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 04:36:55,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 04:36:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 04:36:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 04:36:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 04:36:55,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-28 04:36:55,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-28 04:36:55,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 04:36:55,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-28 04:36:55,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 04:36:56,736 INFO L124 PetriNetUnfolderBase]: 4447/7094 cut-off events. [2024-06-28 04:36:56,736 INFO L125 PetriNetUnfolderBase]: For 3450/3450 co-relation queries the response was YES. [2024-06-28 04:36:56,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16110 conditions, 7094 events. 4447/7094 cut-off events. For 3450/3450 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 52030 event pairs, 978 based on Foata normal form. 117/6927 useless extension candidates. Maximal degree in co-relation 7705. Up to 2807 conditions per place. [2024-06-28 04:36:56,781 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 87 selfloop transitions, 4 changer transitions 5/114 dead transitions. [2024-06-28 04:36:56,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 509 flow [2024-06-28 04:36:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 04:36:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 04:36:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-06-28 04:36:56,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7298245614035088 [2024-06-28 04:36:56,784 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 166 flow. Second operand 5 states and 208 transitions. [2024-06-28 04:36:56,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 509 flow [2024-06-28 04:36:56,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 04:36:56,792 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 175 flow [2024-06-28 04:36:56,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-06-28 04:36:56,794 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-06-28 04:36:56,794 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 175 flow [2024-06-28 04:36:56,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-28 04:36:56,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 04:36:56,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 04:36:56,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 04:36:56,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-28 04:36:56,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 04:36:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash 871263358, now seen corresponding path program 2 times [2024-06-28 04:36:56,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 04:36:56,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624528595] [2024-06-28 04:36:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 04:36:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 04:36:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 04:36:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 04:36:56,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 04:36:56,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624528595] [2024-06-28 04:36:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624528595] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 04:36:56,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 04:36:56,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 04:36:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134824817] [2024-06-28 04:36:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 04:36:56,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 04:36:56,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 04:36:56,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 04:36:56,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 04:36:56,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-06-28 04:36:56,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-28 04:36:56,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 04:36:56,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-06-28 04:36:56,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 04:36:57,718 INFO L124 PetriNetUnfolderBase]: 4087/6599 cut-off events. [2024-06-28 04:36:57,718 INFO L125 PetriNetUnfolderBase]: For 3864/3864 co-relation queries the response was YES. [2024-06-28 04:36:57,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14740 conditions, 6599 events. 4087/6599 cut-off events. For 3864/3864 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 48478 event pairs, 831 based on Foata normal form. 117/6470 useless extension candidates. Maximal degree in co-relation 11387. Up to 2342 conditions per place. [2024-06-28 04:36:57,742 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-06-28 04:36:57,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 111 transitions, 482 flow [2024-06-28 04:36:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 04:36:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 04:36:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-06-28 04:36:57,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7192982456140351 [2024-06-28 04:36:57,744 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 175 flow. Second operand 5 states and 205 transitions. [2024-06-28 04:36:57,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 111 transitions, 482 flow [2024-06-28 04:36:57,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 111 transitions, 474 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 04:36:57,752 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-06-28 04:36:57,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-06-28 04:36:57,753 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2024-06-28 04:36:57,753 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-06-28 04:36:57,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-06-28 04:36:57,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-28 04:36:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-28 04:36:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-28 04:36:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-28 04:36:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-28 04:36:57,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-28 04:36:57,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-28 04:36:57,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-28 04:36:57,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 04:36:57,757 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-06-28 04:36:57,760 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 04:36:57,761 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 04:36:57,765 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-28 04:36:57,765 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-28 04:36:57,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 04:36:57 BasicIcfg [2024-06-28 04:36:57,766 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 04:36:57,767 INFO L158 Benchmark]: Toolchain (without parser) took 7042.14ms. Allocated memory was 184.5MB in the beginning and 610.3MB in the end (delta: 425.7MB). Free memory was 122.2MB in the beginning and 411.1MB in the end (delta: -288.9MB). Peak memory consumption was 342.9MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,767 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 184.5MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 04:36:57,767 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 04:36:57,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.71ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 105.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.36ms. Allocated memory is still 184.5MB. Free memory was 105.3MB in the beginning and 102.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,768 INFO L158 Benchmark]: Boogie Preprocessor took 67.43ms. Allocated memory is still 184.5MB. Free memory was 102.5MB in the beginning and 99.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,769 INFO L158 Benchmark]: RCFGBuilder took 1128.09ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 99.1MB in the beginning and 183.1MB in the end (delta: -84.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,769 INFO L158 Benchmark]: TraceAbstraction took 5374.78ms. Allocated memory was 268.4MB in the beginning and 610.3MB in the end (delta: 341.8MB). Free memory was 182.0MB in the beginning and 411.1MB in the end (delta: -229.1MB). Peak memory consumption was 317.2MB. Max. memory is 16.1GB. [2024-06-28 04:36:57,771 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 0.18ms. Allocated memory is still 184.5MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.71ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 105.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.36ms. Allocated memory is still 184.5MB. Free memory was 105.3MB in the beginning and 102.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.43ms. Allocated memory is still 184.5MB. Free memory was 102.5MB in the beginning and 99.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1128.09ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 99.1MB in the beginning and 183.1MB in the end (delta: -84.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5374.78ms. Allocated memory was 268.4MB in the beginning and 610.3MB in the end (delta: 341.8MB). Free memory was 182.0MB in the beginning and 411.1MB in the end (delta: -229.1MB). Peak memory consumption was 317.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 148]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 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: 5.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 952 IncrementalHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 13 mSDtfsCounter, 952 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-28 04:36:57,807 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