./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-trans.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/protection/chl-match-trans.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/chl-match-trans.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/chl-match-trans.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 [2024-06-27 19:42:05,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:42:06,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:42:06,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:42:06,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:42:06,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:42:06,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:42:06,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:42:06,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:42:06,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:42:06,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:42:06,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:42:06,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:42:06,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:42:06,089 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:42:06,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:42:06,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:42:06,090 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:42:06,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:42:06,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:42:06,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:42:06,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:42:06,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:42:06,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:42:06,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:42:06,092 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:42:06,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:42:06,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:42:06,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:42:06,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:42:06,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:42:06,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:42:06,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:06,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:42:06,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:42:06,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:42:06,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:42:06,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:42:06,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:42:06,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:42:06,097 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:42:06,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:42:06,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:42:06,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:42:06,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:42:06,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:42:06,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:42:06,390 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:42:06,391 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:42:06,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/chl-match-trans.wvr.yml/witness.yml [2024-06-27 19:42:06,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:42:06,516 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:42:06,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2024-06-27 19:42:07,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:42:07,798 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:42:07,799 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2024-06-27 19:42:07,807 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89175d6a/6cc782e375144b2397d29fd0beea0d90/FLAG64289741b [2024-06-27 19:42:07,818 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89175d6a/6cc782e375144b2397d29fd0beea0d90 [2024-06-27 19:42:07,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:42:07,820 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:42:07,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:07,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:42:07,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:42:07,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:06" (1/2) ... [2024-06-27 19:42:07,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593aaa9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:07, skipping insertion in model container [2024-06-27 19:42:07,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:06" (1/2) ... [2024-06-27 19:42:07,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5915ee91 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:42:07, skipping insertion in model container [2024-06-27 19:42:07,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:07" (2/2) ... [2024-06-27 19:42:07,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593aaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:07, skipping insertion in model container [2024-06-27 19:42:07,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:42:07" (2/2) ... [2024-06-27 19:42:07,831 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:42:07,857 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:42:07,862 INFO L97 edCorrectnessWitness]: Location invariant before [L82-L82] ((! multithreaded || ((result_11 == -1 || result_11 == 0) || result_11 == 1)) && (! multithreaded || ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((result_9 == -1 || result_9 == 0) || result_9 == 1)) [2024-06-27 19:42:07,862 INFO L97 edCorrectnessWitness]: Location invariant before [L81-L81] ((! multithreaded || ((result_11 == -1 || result_11 == 0) || result_11 == 1)) && (! multithreaded || ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((result_9 == -1 || result_9 == 0) || result_9 == 1)) [2024-06-27 19:42:07,862 INFO L97 edCorrectnessWitness]: Location invariant before [L83-L83] ((! multithreaded || ((result_11 == -1 || result_11 == 0) || result_11 == 1)) && (! multithreaded || ((result_10 == -1 || result_10 == 0) || result_10 == 1))) && (! multithreaded || ((result_9 == -1 || result_9 == 0) || result_9 == 1)) [2024-06-27 19:42:07,862 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:42:07,862 INFO L106 edCorrectnessWitness]: ghost_update [L80-L80] multithreaded = 1; [2024-06-27 19:42:07,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:42:08,071 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:08,081 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:42:08,171 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:42:08,194 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:42:08,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08 WrapperNode [2024-06-27 19:42:08,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:42:08,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:08,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:42:08,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:42:08,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,259 INFO L138 Inliner]: procedures = 22, calls = 19, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 203 [2024-06-27 19:42:08,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:42:08,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:42:08,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:42:08,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:42:08,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,308 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]. [2024-06-27 19:42:08,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:42:08,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:42:08,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:42:08,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:42:08,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (1/1) ... [2024-06-27 19:42:08,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:42:08,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:42:08,361 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) [2024-06-27 19:42:08,363 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 [2024-06-27 19:42:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:42:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:42:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:42:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:42:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:42:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-27 19:42:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-27 19:42:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:42:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:42:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:42:08,394 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:42:08,472 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:42:08,473 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:42:08,782 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:42:08,783 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:42:09,147 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:42:09,147 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 19:42:09,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:09 BoogieIcfgContainer [2024-06-27 19:42:09,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:42:09,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:42:09,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:42:09,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:42:09,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:42:06" (1/4) ... [2024-06-27 19:42:09,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b828761 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:42:09, skipping insertion in model container [2024-06-27 19:42:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:42:07" (2/4) ... [2024-06-27 19:42:09,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b828761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:42:09, skipping insertion in model container [2024-06-27 19:42:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:42:08" (3/4) ... [2024-06-27 19:42:09,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b828761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:42:09, skipping insertion in model container [2024-06-27 19:42:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:42:09" (4/4) ... [2024-06-27 19:42:09,156 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2024-06-27 19:42:09,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:42:09,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 19:42:09,172 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:42:09,225 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-27 19:42:09,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 69 flow [2024-06-27 19:42:09,288 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-06-27 19:42:09,288 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 19:42:09,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 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. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-27 19:42:09,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 24 transitions, 69 flow [2024-06-27 19:42:09,295 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 16 transitions, 41 flow [2024-06-27 19:42:09,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:42:09,316 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;@5cdbe00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:42:09,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 19:42:09,322 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:42:09,322 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 19:42:09,322 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:42:09,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:09,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:42:09,323 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)] === [2024-06-27 19:42:09,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash 626687691, now seen corresponding path program 1 times [2024-06-27 19:42:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:09,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816227513] [2024-06-27 19:42:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:09,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:09,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816227513] [2024-06-27 19:42:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816227513] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:09,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:09,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:42:09,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090443551] [2024-06-27 19:42:09,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:09,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:42:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:42:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:42:09,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:09,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-06-27 19:42:09,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:09,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:09,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:09,805 INFO L124 PetriNetUnfolderBase]: 43/90 cut-off events. [2024-06-27 19:42:09,806 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-27 19:42:09,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 90 events. 43/90 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 226 event pairs, 8 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 186. Up to 81 conditions per place. [2024-06-27 19:42:09,812 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 21 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-06-27 19:42:09,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 117 flow [2024-06-27 19:42:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-06-27 19:42:09,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2024-06-27 19:42:09,827 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 43 transitions. [2024-06-27 19:42:09,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 117 flow [2024-06-27 19:42:09,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 19:42:09,832 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 68 flow [2024-06-27 19:42:09,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2024-06-27 19:42:09,836 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2024-06-27 19:42:09,837 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 68 flow [2024-06-27 19:42:09,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-06-27 19:42:09,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:09,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-27 19:42:09,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:42:09,838 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)] === [2024-06-27 19:42:09,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2047517130, now seen corresponding path program 1 times [2024-06-27 19:42:09,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:09,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839303854] [2024-06-27 19:42:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:09,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:10,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:10,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839303854] [2024-06-27 19:42:10,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839303854] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:10,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:10,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:10,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944439143] [2024-06-27 19:42:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:10,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:10,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:10,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:10,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:10,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:10,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:10,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:10,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:10,167 INFO L124 PetriNetUnfolderBase]: 40/84 cut-off events. [2024-06-27 19:42:10,167 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-06-27 19:42:10,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 84 events. 40/84 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 189 event pairs, 9 based on Foata normal form. 3/87 useless extension candidates. Maximal degree in co-relation 244. Up to 60 conditions per place. [2024-06-27 19:42:10,169 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 18 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2024-06-27 19:42:10,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 128 flow [2024-06-27 19:42:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-27 19:42:10,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-27 19:42:10,171 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 68 flow. Second operand 3 states and 39 transitions. [2024-06-27 19:42:10,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 128 flow [2024-06-27 19:42:10,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:10,173 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 91 flow [2024-06-27 19:42:10,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-06-27 19:42:10,174 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2024-06-27 19:42:10,174 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 91 flow [2024-06-27 19:42:10,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:10,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:10,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:10,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:42:10,175 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)] === [2024-06-27 19:42:10,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash -464569331, now seen corresponding path program 1 times [2024-06-27 19:42:10,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:10,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395390925] [2024-06-27 19:42:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:10,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395390925] [2024-06-27 19:42:10,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395390925] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:10,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703323329] [2024-06-27 19:42:10,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:10,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:10,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:10,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:10,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-06-27 19:42:10,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:10,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:10,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:10,539 INFO L124 PetriNetUnfolderBase]: 37/79 cut-off events. [2024-06-27 19:42:10,539 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-06-27 19:42:10,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 79 events. 37/79 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 179 event pairs, 5 based on Foata normal form. 2/81 useless extension candidates. Maximal degree in co-relation 259. Up to 61 conditions per place. [2024-06-27 19:42:10,541 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 23 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2024-06-27 19:42:10,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 175 flow [2024-06-27 19:42:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2024-06-27 19:42:10,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-06-27 19:42:10,543 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 91 flow. Second operand 3 states and 41 transitions. [2024-06-27 19:42:10,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 175 flow [2024-06-27 19:42:10,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:10,545 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 119 flow [2024-06-27 19:42:10,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2024-06-27 19:42:10,546 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2024-06-27 19:42:10,546 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 119 flow [2024-06-27 19:42:10,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-06-27 19:42:10,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:10,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:10,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:42:10,547 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)] === [2024-06-27 19:42:10,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1516747434, now seen corresponding path program 1 times [2024-06-27 19:42:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798104962] [2024-06-27 19:42:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:10,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798104962] [2024-06-27 19:42:10,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798104962] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:10,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:10,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:10,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157810030] [2024-06-27 19:42:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:10,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:10,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:10,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:42:10,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:10,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 119 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) [2024-06-27 19:42:10,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:10,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:10,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:10,926 INFO L124 PetriNetUnfolderBase]: 36/76 cut-off events. [2024-06-27 19:42:10,926 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-06-27 19:42:10,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 76 events. 36/76 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 15 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 279. Up to 48 conditions per place. [2024-06-27 19:42:10,930 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 16 selfloop transitions, 5 changer transitions 0/22 dead transitions. [2024-06-27 19:42:10,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 155 flow [2024-06-27 19:42:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2024-06-27 19:42:10,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-06-27 19:42:10,935 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 119 flow. Second operand 3 states and 33 transitions. [2024-06-27 19:42:10,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 155 flow [2024-06-27 19:42:10,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:10,941 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 123 flow [2024-06-27 19:42:10,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2024-06-27 19:42:10,942 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2024-06-27 19:42:10,943 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 123 flow [2024-06-27 19:42:10,943 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) [2024-06-27 19:42:10,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:10,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:10,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:42:10,944 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)] === [2024-06-27 19:42:10,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:10,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1606619149, now seen corresponding path program 1 times [2024-06-27 19:42:10,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:10,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151449251] [2024-06-27 19:42:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:10,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:11,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:11,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151449251] [2024-06-27 19:42:11,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151449251] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:11,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:11,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:42:11,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028678929] [2024-06-27 19:42:11,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:11,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:42:11,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:42:11,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:42:11,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:11,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 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) [2024-06-27 19:42:11,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:11,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:11,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:11,147 INFO L124 PetriNetUnfolderBase]: 34/73 cut-off events. [2024-06-27 19:42:11,147 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-06-27 19:42:11,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 73 events. 34/73 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 152 event pairs, 1 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 268. Up to 61 conditions per place. [2024-06-27 19:42:11,149 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 24 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-06-27 19:42:11,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 211 flow [2024-06-27 19:42:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-27 19:42:11,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-27 19:42:11,150 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 123 flow. Second operand 3 states and 39 transitions. [2024-06-27 19:42:11,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 211 flow [2024-06-27 19:42:11,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:11,153 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 146 flow [2024-06-27 19:42:11,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=146, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2024-06-27 19:42:11,154 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2024-06-27 19:42:11,154 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 146 flow [2024-06-27 19:42:11,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 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) [2024-06-27 19:42:11,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:11,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:11,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:42:11,155 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)] === [2024-06-27 19:42:11,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1734412882, now seen corresponding path program 1 times [2024-06-27 19:42:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:11,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888222036] [2024-06-27 19:42:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:11,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:11,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888222036] [2024-06-27 19:42:11,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888222036] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:11,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:11,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:11,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183602315] [2024-06-27 19:42:11,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:11,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:11,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:11,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:42:11,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:11,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:11,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:11,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:11,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:11,472 INFO L124 PetriNetUnfolderBase]: 33/71 cut-off events. [2024-06-27 19:42:11,472 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-06-27 19:42:11,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 71 events. 33/71 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 142 event pairs, 9 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-27 19:42:11,473 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 21 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2024-06-27 19:42:11,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 208 flow [2024-06-27 19:42:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-06-27 19:42:11,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-06-27 19:42:11,475 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 146 flow. Second operand 3 states and 35 transitions. [2024-06-27 19:42:11,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 208 flow [2024-06-27 19:42:11,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:42:11,477 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 158 flow [2024-06-27 19:42:11,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2024-06-27 19:42:11,478 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2024-06-27 19:42:11,478 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 158 flow [2024-06-27 19:42:11,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:11,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:11,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:11,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:42:11,479 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)] === [2024-06-27 19:42:11,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1734413843, now seen corresponding path program 1 times [2024-06-27 19:42:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:11,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783695186] [2024-06-27 19:42:11,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:11,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:11,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:11,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783695186] [2024-06-27 19:42:11,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783695186] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:11,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:11,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:42:11,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504670943] [2024-06-27 19:42:11,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:11,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:42:11,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:11,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:11,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:11,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:11,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:11,785 INFO L124 PetriNetUnfolderBase]: 32/69 cut-off events. [2024-06-27 19:42:11,785 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-06-27 19:42:11,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 69 events. 32/69 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 6 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-06-27 19:42:11,786 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 24 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-06-27 19:42:11,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 234 flow [2024-06-27 19:42:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-27 19:42:11,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-06-27 19:42:11,790 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 158 flow. Second operand 3 states and 38 transitions. [2024-06-27 19:42:11,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 234 flow [2024-06-27 19:42:11,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:42:11,793 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 165 flow [2024-06-27 19:42:11,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2024-06-27 19:42:11,795 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-06-27 19:42:11,795 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 165 flow [2024-06-27 19:42:11,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:42:11,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:42:11,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:11,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:42:11,796 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)] === [2024-06-27 19:42:11,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:42:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2067775596, now seen corresponding path program 1 times [2024-06-27 19:42:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:42:11,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483821198] [2024-06-27 19:42:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:42:11,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:42:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:42:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:42:12,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:42:12,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483821198] [2024-06-27 19:42:12,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483821198] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:42:12,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:42:12,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:42:12,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828028507] [2024-06-27 19:42:12,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:42:12,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:42:12,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:42:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:42:12,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:42:12,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-06-27 19:42:12,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-06-27 19:42:12,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:42:12,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-06-27 19:42:12,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:42:12,155 INFO L124 PetriNetUnfolderBase]: 32/68 cut-off events. [2024-06-27 19:42:12,155 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-06-27 19:42:12,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 68 events. 32/68 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 128 event pairs, 19 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 303. Up to 67 conditions per place. [2024-06-27 19:42:12,157 INFO L140 encePairwiseOnDemand]: 22/24 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-06-27 19:42:12,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 22 transitions, 191 flow [2024-06-27 19:42:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:42:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:42:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2024-06-27 19:42:12,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-06-27 19:42:12,159 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 165 flow. Second operand 3 states and 28 transitions. [2024-06-27 19:42:12,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 22 transitions, 191 flow [2024-06-27 19:42:12,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 166 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-27 19:42:12,162 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2024-06-27 19:42:12,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2024-06-27 19:42:12,164 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2024-06-27 19:42:12,165 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2024-06-27 19:42:12,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-06-27 19:42:12,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 19:42:12,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-27 19:42:12,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 19:42:12,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 19:42:12,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 19:42:12,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 19:42:12,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 19:42:12,170 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:42:12,173 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:42:12,173 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:42:12,179 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 19:42:12,179 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 19:42:12,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:42:12 BasicIcfg [2024-06-27 19:42:12,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:42:12,180 INFO L158 Benchmark]: Toolchain (without parser) took 4360.65ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 101.9MB in the beginning and 95.2MB in the end (delta: 6.6MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,180 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:12,181 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 121.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:42:12,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.51ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 133.4MB in the end (delta: -31.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.01ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,182 INFO L158 Benchmark]: Boogie Preprocessor took 60.33ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 128.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,182 INFO L158 Benchmark]: RCFGBuilder took 825.85ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 134.1MB in the end (delta: -5.5MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,182 INFO L158 Benchmark]: TraceAbstraction took 3030.17ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 134.1MB in the beginning and 95.2MB in the end (delta: 38.8MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2024-06-27 19:42:12,187 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 121.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.51ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 133.4MB in the end (delta: -31.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.01ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.33ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 128.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 825.85ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 134.1MB in the end (delta: -5.5MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3030.17ms. Allocated memory was 172.0MB in the beginning and 228.6MB in the end (delta: 56.6MB). Free memory was 134.1MB in the beginning and 95.2MB in the end (delta: 38.8MB). Peak memory consumption was 94.3MB. 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, 34 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: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 13 mSDtfsCounter, 292 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 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! [2024-06-27 19:42:12,227 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