./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-subst.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/mutex-meet/chl-match-subst.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/chl-match-subst.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/chl-match-subst.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-cde23df-m [2024-06-14 14:15:09,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:15:09,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:15:09,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:15:09,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:15:09,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:15:09,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:15:09,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:15:09,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:15:09,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:15:09,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:15:09,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:15:09,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:15:09,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:15:09,305 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:15:09,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:15:09,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:15:09,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:15:09,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:15:09,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:15:09,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:15:09,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:15:09,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:15:09,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:15:09,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:15:09,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:15:09,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:15:09,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:15:09,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:15:09,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:15:09,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:15:09,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:15:09,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:15:09,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:15:09,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:15:09,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:15:09,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:15:09,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:15:09,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:15:09,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:15:09,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:15:09,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:15:09,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:15:09,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:15:09,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:15:09,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:15:09,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:15:09,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:15:09,630 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:15:09,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2024-06-14 14:15:10,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:15:11,075 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:15:11,075 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2024-06-14 14:15:11,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb82c63f/f48936fdac6b4e2c8cb6b0e34ef99f3a/FLAG1f006bddb [2024-06-14 14:15:11,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb82c63f/f48936fdac6b4e2c8cb6b0e34ef99f3a [2024-06-14 14:15:11,098 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:15:11,099 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:15:11,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/chl-match-subst.wvr.yml/witness.yml [2024-06-14 14:15:11,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:15:11,216 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:15:11,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:15:11,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:15:11,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:15:11,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:15:11" (1/2) ... [2024-06-14 14:15:11,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73261c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:15:11, skipping insertion in model container [2024-06-14 14:15:11,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:15:11" (1/2) ... [2024-06-14 14:15:11,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fe7a950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:15:11, skipping insertion in model container [2024-06-14 14:15:11,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:11" (2/2) ... [2024-06-14 14:15:11,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73261c1d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11, skipping insertion in model container [2024-06-14 14:15:11,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:11" (2/2) ... [2024-06-14 14:15:11,227 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:15:11,255 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:15:11,256 INFO L97 edCorrectnessWitness]: Location invariant before [L82-L82] ((! multithreaded || ((((-128 <= result_10 && -1 <= result_10) && result_10 <= 1) && result_10 <= 127) && ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((((-128 <= result_11 && -1 <= result_11) && result_11 <= 1) && result_11 <= 127) && ((result_11 == -1 || result_11 == 0) || result_11 == 1)))) && (! multithreaded || ((((-128 <= result_9 && -1 <= result_9) && result_9 <= 1) && result_9 <= 127) && ((result_9 == -1 || result_9 == 0) || result_9 == 1))) [2024-06-14 14:15:11,256 INFO L97 edCorrectnessWitness]: Location invariant before [L83-L83] ((! multithreaded || ((((-128 <= result_10 && -1 <= result_10) && result_10 <= 1) && result_10 <= 127) && ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((((-128 <= result_11 && -1 <= result_11) && result_11 <= 1) && result_11 <= 127) && ((result_11 == -1 || result_11 == 0) || result_11 == 1)))) && (! multithreaded || ((((-128 <= result_9 && -1 <= result_9) && result_9 <= 1) && result_9 <= 127) && ((result_9 == -1 || result_9 == 0) || result_9 == 1))) [2024-06-14 14:15:11,257 INFO L97 edCorrectnessWitness]: Location invariant before [L81-L81] ((! multithreaded || ((((-128 <= result_10 && -1 <= result_10) && result_10 <= 1) && result_10 <= 127) && ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((((-128 <= result_11 && -1 <= result_11) && result_11 <= 1) && result_11 <= 127) && ((result_11 == -1 || result_11 == 0) || result_11 == 1)))) && (! multithreaded || ((((-128 <= result_9 && -1 <= result_9) && result_9 <= 1) && result_9 <= 127) && ((result_9 == -1 || result_9 == 0) || result_9 == 1))) [2024-06-14 14:15:11,257 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:15:11,257 INFO L106 edCorrectnessWitness]: ghost_update [L80-L80] multithreaded = 1; [2024-06-14 14:15:11,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:15:11,453 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:15:11,470 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:15:11,557 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:15:11,575 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:15:11,577 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11 WrapperNode [2024-06-14 14:15:11,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:15:11,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:15:11,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:15:11,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:15:11,589 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 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,623 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 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,675 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 13, calls inlined = 23, statements flattened = 207 [2024-06-14 14:15:11,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:15:11,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:15:11,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:15:11,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:15:11,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,726 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-14 14:15:11,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:15:11,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:15:11,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:15:11,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:15:11,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (1/1) ... [2024-06-14 14:15:11,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:15:11,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:15:11,786 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) [2024-06-14 14:15:11,812 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 [2024-06-14 14:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:15:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:15:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:15:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:15:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:15:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:15:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:15:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:15:11,845 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:15:11,973 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:15:11,976 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:15:12,463 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:15:12,464 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:15:12,813 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:15:12,814 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:15:12,814 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:15:12 BoogieIcfgContainer [2024-06-14 14:15:12,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:15:12,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:15:12,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:15:12,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:15:12,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:15:11" (1/4) ... [2024-06-14 14:15:12,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9abc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:15:12, skipping insertion in model container [2024-06-14 14:15:12,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:15:11" (2/4) ... [2024-06-14 14:15:12,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9abc2a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:15:12, skipping insertion in model container [2024-06-14 14:15:12,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:15:11" (3/4) ... [2024-06-14 14:15:12,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9abc2a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:15:12, skipping insertion in model container [2024-06-14 14:15:12,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:15:12" (4/4) ... [2024-06-14 14:15:12,824 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2024-06-14 14:15:12,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:15:12,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:15:12,843 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:15:12,915 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 14:15:12,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 71 flow [2024-06-14 14:15:12,989 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-06-14 14:15:12,989 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 14:15:12,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 22 events. 0/22 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:15:12,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 25 transitions, 71 flow [2024-06-14 14:15:12,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 17 transitions, 43 flow [2024-06-14 14:15:13,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:15:13,021 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;@1792cd7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:15:13,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:15:13,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:15:13,027 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:15:13,027 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:15:13,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:13,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:15:13,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:13,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1460980308, now seen corresponding path program 1 times [2024-06-14 14:15:13,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:13,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452836167] [2024-06-14 14:15:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:13,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:13,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452836167] [2024-06-14 14:15:13,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452836167] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:13,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:13,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:15:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394721344] [2024-06-14 14:15:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:13,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:15:13,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:13,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:15:13,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:15:13,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:13,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-06-14 14:15:13,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:13,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:13,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:13,645 INFO L124 PetriNetUnfolderBase]: 43/91 cut-off events. [2024-06-14 14:15:13,646 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:15:13,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 91 events. 43/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 8 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 186. Up to 81 conditions per place. [2024-06-14 14:15:13,649 INFO L140 encePairwiseOnDemand]: 18/25 looper letters, 23 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2024-06-14 14:15:13,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 123 flow [2024-06-14 14:15:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-06-14 14:15:13,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-06-14 14:15:13,664 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 42 transitions. [2024-06-14 14:15:13,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 123 flow [2024-06-14 14:15:13,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 118 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:15:13,670 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 70 flow [2024-06-14 14:15:13,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-06-14 14:15:13,675 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-06-14 14:15:13,675 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 70 flow [2024-06-14 14:15:13,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-06-14 14:15:13,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:13,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:13,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:15:13,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:13,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1954251657, now seen corresponding path program 1 times [2024-06-14 14:15:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503439463] [2024-06-14 14:15:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503439463] [2024-06-14 14:15:14,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503439463] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:14,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:14,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:15:14,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247355094] [2024-06-14 14:15:14,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:15:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:15:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:15:14,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:14,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-06-14 14:15:14,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:14,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:14,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:14,157 INFO L124 PetriNetUnfolderBase]: 40/85 cut-off events. [2024-06-14 14:15:14,158 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-06-14 14:15:14,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 85 events. 40/85 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 9 based on Foata normal form. 3/88 useless extension candidates. Maximal degree in co-relation 244. Up to 60 conditions per place. [2024-06-14 14:15:14,161 INFO L140 encePairwiseOnDemand]: 19/25 looper letters, 20 selfloop transitions, 5 changer transitions 0/25 dead transitions. [2024-06-14 14:15:14,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 25 transitions, 134 flow [2024-06-14 14:15:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-14 14:15:14,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2024-06-14 14:15:14,163 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 70 flow. Second operand 3 states and 38 transitions. [2024-06-14 14:15:14,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 25 transitions, 134 flow [2024-06-14 14:15:14,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:14,165 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 93 flow [2024-06-14 14:15:14,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2024-06-14 14:15:14,166 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2024-06-14 14:15:14,166 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 93 flow [2024-06-14 14:15:14,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-06-14 14:15:14,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:14,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:14,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:15:14,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:14,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:14,167 INFO L85 PathProgramCache]: Analyzing trace with hash 822148013, now seen corresponding path program 1 times [2024-06-14 14:15:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982480917] [2024-06-14 14:15:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:14,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982480917] [2024-06-14 14:15:14,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982480917] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:14,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:14,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:15:14,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073241371] [2024-06-14 14:15:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:14,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:15:14,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:14,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:15:14,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:15:14,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:14,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-06-14 14:15:14,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:14,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:14,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:14,476 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2024-06-14 14:15:14,477 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-06-14 14:15:14,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 80 events. 37/80 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 179 event pairs, 5 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 259. Up to 61 conditions per place. [2024-06-14 14:15:14,479 INFO L140 encePairwiseOnDemand]: 20/25 looper letters, 25 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-06-14 14:15:14,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 181 flow [2024-06-14 14:15:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:14,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-06-14 14:15:14,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-06-14 14:15:14,481 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 93 flow. Second operand 3 states and 40 transitions. [2024-06-14 14:15:14,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 181 flow [2024-06-14 14:15:14,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:14,484 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 121 flow [2024-06-14 14:15:14,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-06-14 14:15:14,486 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2024-06-14 14:15:14,486 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 121 flow [2024-06-14 14:15:14,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-06-14 14:15:14,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:14,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:14,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:15:14,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:14,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -283215414, now seen corresponding path program 1 times [2024-06-14 14:15:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544719358] [2024-06-14 14:15:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:14,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544719358] [2024-06-14 14:15:14,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544719358] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:14,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:14,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:15:14,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508635456] [2024-06-14 14:15:14,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:14,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:15:14,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:14,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:15:14,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:15:14,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:14,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-06-14 14:15:14,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:14,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:14,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:14,875 INFO L124 PetriNetUnfolderBase]: 36/77 cut-off events. [2024-06-14 14:15:14,876 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-06-14 14:15:14,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 77 events. 36/77 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 147 event pairs, 15 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 279. Up to 49 conditions per place. [2024-06-14 14:15:14,879 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 18 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2024-06-14 14:15:14,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 161 flow [2024-06-14 14:15:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2024-06-14 14:15:14,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4266666666666667 [2024-06-14 14:15:14,882 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 121 flow. Second operand 3 states and 32 transitions. [2024-06-14 14:15:14,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 161 flow [2024-06-14 14:15:14,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:14,886 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 125 flow [2024-06-14 14:15:14,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2024-06-14 14:15:14,887 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2024-06-14 14:15:14,887 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 125 flow [2024-06-14 14:15:14,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-06-14 14:15:14,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:14,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:14,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:15:14,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:14,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1593321946, now seen corresponding path program 1 times [2024-06-14 14:15:14,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:14,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018874653] [2024-06-14 14:15:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:14,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:15,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:15,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018874653] [2024-06-14 14:15:15,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018874653] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:15,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:15,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:15:15,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103522708] [2024-06-14 14:15:15,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:15,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:15:15,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:15:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:15:15,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:15,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-14 14:15:15,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:15,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:15,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:15,134 INFO L124 PetriNetUnfolderBase]: 34/74 cut-off events. [2024-06-14 14:15:15,135 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-06-14 14:15:15,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 74 events. 34/74 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 159 event pairs, 1 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 268. Up to 61 conditions per place. [2024-06-14 14:15:15,137 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 26 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2024-06-14 14:15:15,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 217 flow [2024-06-14 14:15:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-14 14:15:15,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2024-06-14 14:15:15,139 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 125 flow. Second operand 3 states and 38 transitions. [2024-06-14 14:15:15,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 217 flow [2024-06-14 14:15:15,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:15:15,141 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 148 flow [2024-06-14 14:15:15,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2024-06-14 14:15:15,142 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2024-06-14 14:15:15,142 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 148 flow [2024-06-14 14:15:15,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-06-14 14:15:15,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:15,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:15,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:15:15,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:15,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2146626195, now seen corresponding path program 1 times [2024-06-14 14:15:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:15,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013531050] [2024-06-14 14:15:15,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:15,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:15,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:15,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013531050] [2024-06-14 14:15:15,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013531050] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:15,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:15,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:15:15,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652242271] [2024-06-14 14:15:15,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:15,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:15:15,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:15:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:15:15,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:15,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-06-14 14:15:15,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:15,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:15,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:15,405 INFO L124 PetriNetUnfolderBase]: 33/72 cut-off events. [2024-06-14 14:15:15,405 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-06-14 14:15:15,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 72 events. 33/72 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs, 9 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-14 14:15:15,407 INFO L140 encePairwiseOnDemand]: 22/25 looper letters, 23 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2024-06-14 14:15:15,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 214 flow [2024-06-14 14:15:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2024-06-14 14:15:15,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4533333333333333 [2024-06-14 14:15:15,408 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 148 flow. Second operand 3 states and 34 transitions. [2024-06-14 14:15:15,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 214 flow [2024-06-14 14:15:15,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:15:15,410 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 160 flow [2024-06-14 14:15:15,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-06-14 14:15:15,411 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2024-06-14 14:15:15,411 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 160 flow [2024-06-14 14:15:15,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-06-14 14:15:15,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:15,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:15,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:15:15,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:15,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:15,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2146627156, now seen corresponding path program 1 times [2024-06-14 14:15:15,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:15,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736892125] [2024-06-14 14:15:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:15,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736892125] [2024-06-14 14:15:15,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736892125] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:15,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:15,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:15:15,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068133211] [2024-06-14 14:15:15,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:15,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:15:15,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:15,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:15:15,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:15:15,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:15,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-06-14 14:15:15,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:15,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:15,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:15,715 INFO L124 PetriNetUnfolderBase]: 32/70 cut-off events. [2024-06-14 14:15:15,715 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-06-14 14:15:15,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 70 events. 32/70 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 144 event pairs, 6 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-14 14:15:15,716 INFO L140 encePairwiseOnDemand]: 22/25 looper letters, 26 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2024-06-14 14:15:15,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 240 flow [2024-06-14 14:15:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2024-06-14 14:15:15,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49333333333333335 [2024-06-14 14:15:15,718 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 160 flow. Second operand 3 states and 37 transitions. [2024-06-14 14:15:15,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 240 flow [2024-06-14 14:15:15,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:15:15,720 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 167 flow [2024-06-14 14:15:15,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2024-06-14 14:15:15,721 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2024-06-14 14:15:15,721 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 167 flow [2024-06-14 14:15:15,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-06-14 14:15:15,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:15:15,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:15,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:15:15,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:15:15,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:15:15,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2120902535, now seen corresponding path program 1 times [2024-06-14 14:15:15,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:15:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324094901] [2024-06-14 14:15:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:15:15,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:15:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:15:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:15:16,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:15:16,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324094901] [2024-06-14 14:15:16,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324094901] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:15:16,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:15:16,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:15:16,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991465963] [2024-06-14 14:15:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:15:16,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:15:16,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:15:16,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:15:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:15:16,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-06-14 14:15:16,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-06-14 14:15:16,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:15:16,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-06-14 14:15:16,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:15:16,059 INFO L124 PetriNetUnfolderBase]: 32/69 cut-off events. [2024-06-14 14:15:16,059 INFO L125 PetriNetUnfolderBase]: For 208/208 co-relation queries the response was YES. [2024-06-14 14:15:16,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 69 events. 32/69 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 129 event pairs, 19 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 303. Up to 69 conditions per place. [2024-06-14 14:15:16,061 INFO L140 encePairwiseOnDemand]: 23/25 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2024-06-14 14:15:16,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 23 transitions, 197 flow [2024-06-14 14:15:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:15:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:15:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2024-06-14 14:15:16,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36 [2024-06-14 14:15:16,063 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 167 flow. Second operand 3 states and 27 transitions. [2024-06-14 14:15:16,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 23 transitions, 197 flow [2024-06-14 14:15:16,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 172 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 14:15:16,068 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2024-06-14 14:15:16,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2024-06-14 14:15:16,071 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2024-06-14 14:15:16,071 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2024-06-14 14:15:16,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-06-14 14:15:16,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 14:15:16,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 14:15:16,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 14:15:16,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 14:15:16,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 14:15:16,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 14:15:16,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 14:15:16,075 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:15:16,078 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:15:16,078 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:15:16,085 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 14:15:16,085 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 14:15:16,086 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:15:16 BasicIcfg [2024-06-14 14:15:16,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:15:16,086 INFO L158 Benchmark]: Toolchain (without parser) took 4871.04ms. Allocated memory was 144.7MB in the beginning and 241.2MB in the end (delta: 96.5MB). Free memory was 69.3MB in the beginning and 77.1MB in the end (delta: -7.8MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,087 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:15:16,087 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:15:16,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.60ms. Allocated memory is still 144.7MB. Free memory was 69.1MB in the beginning and 113.3MB in the end (delta: -44.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.68ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 113.3MB in the beginning and 159.5MB in the end (delta: -46.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,088 INFO L158 Benchmark]: Boogie Preprocessor took 66.70ms. Allocated memory is still 188.7MB. Free memory was 159.5MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,088 INFO L158 Benchmark]: RCFGBuilder took 1070.58ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 66.2MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,089 INFO L158 Benchmark]: TraceAbstraction took 3269.97ms. Allocated memory was 188.7MB in the beginning and 241.2MB in the end (delta: 52.4MB). Free memory was 65.2MB in the beginning and 77.1MB in the end (delta: -12.0MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-06-14 14:15:16,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.60ms. Allocated memory is still 144.7MB. Free memory was 69.1MB in the beginning and 113.3MB in the end (delta: -44.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.68ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 113.3MB in the beginning and 159.5MB in the end (delta: -46.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.70ms. Allocated memory is still 188.7MB. Free memory was 159.5MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1070.58ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 66.2MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3269.97ms. Allocated memory was 188.7MB in the beginning and 241.2MB in the end (delta: 52.4MB). Free memory was 65.2MB in the beginning and 77.1MB in the end (delta: -12.0MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 82]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 83]: 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 7 procedures, 35 locations, 6 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: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 1 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:15:16,128 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