./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/chl-poker-hand-symm.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-poker-hand-symm.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/chl-poker-hand-symm.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 23:03:08,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 23:03:08,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 23:03:08,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 23:03:08,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 23:03:08,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 23:03:08,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 23:03:08,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 23:03:08,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 23:03:08,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 23:03:08,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 23:03:08,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 23:03:08,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 23:03:08,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 23:03:08,361 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 23:03:08,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 23:03:08,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 23:03:08,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 23:03:08,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 23:03:08,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 23:03:08,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 23:03:08,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 23:03:08,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 23:03:08,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 23:03:08,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 23:03:08,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 23:03:08,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 23:03:08,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 23:03:08,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 23:03:08,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 23:03:08,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 23:03:08,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 23:03:08,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:03:08,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 23:03:08,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 23:03:08,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 23:03:08,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 23:03:08,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 23:03:08,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 23:03:08,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 23:03:08,367 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 23:03:08,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 23:03:08,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 23:03:08,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 23:03:08,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 23:03:08,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 23:03:08,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 23:03:08,635 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 23:03:08,635 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 23:03:08,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/chl-poker-hand-symm.wvr.yml/witness.yml [2024-06-27 23:03:08,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 23:03:08,722 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 23:03:08,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-27 23:03:09,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 23:03:09,961 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 23:03:09,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2024-06-27 23:03:09,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16f12a0e0/ae8e6b6963334818bec76251b900976f/FLAGc5c50d42c [2024-06-27 23:03:09,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16f12a0e0/ae8e6b6963334818bec76251b900976f [2024-06-27 23:03:09,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 23:03:09,986 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 23:03:09,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 23:03:09,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 23:03:09,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 23:03:09,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:03:08" (1/2) ... [2024-06-27 23:03:09,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48be7c81 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:03:09, skipping insertion in model container [2024-06-27 23:03:09,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:03:08" (1/2) ... [2024-06-27 23:03:09,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48708f6d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:03:09, skipping insertion in model container [2024-06-27 23:03:09,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:03:09" (2/2) ... [2024-06-27 23:03:09,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48be7c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:09, skipping insertion in model container [2024-06-27 23:03:09,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:03:09" (2/2) ... [2024-06-27 23:03:09,997 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 23:03:10,013 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 23:03:10,014 INFO L97 edCorrectnessWitness]: Location invariant before [L231-L231] ! multithreaded || ((0LL - (long long )break_10) + (long long )i1_9 >= 0LL && (0LL - (long long )break_15) + (long long )i1_14 >= 0LL) [2024-06-27 23:03:10,014 INFO L97 edCorrectnessWitness]: Location invariant before [L230-L230] ! multithreaded || ((0LL - (long long )break_10) + (long long )i1_9 >= 0LL && (0LL - (long long )break_15) + (long long )i1_14 >= 0LL) [2024-06-27 23:03:10,014 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 23:03:10,015 INFO L106 edCorrectnessWitness]: ghost_update [L229-L229] multithreaded = 1; [2024-06-27 23:03:10,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 23:03:10,245 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:03:10,252 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 23:03:10,366 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:03:10,383 INFO L206 MainTranslator]: Completed translation [2024-06-27 23:03:10,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10 WrapperNode [2024-06-27 23:03:10,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 23:03:10,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 23:03:10,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 23:03:10,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 23:03:10,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,459 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1566 [2024-06-27 23:03:10,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 23:03:10,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 23:03:10,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 23:03:10,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 23:03:10,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,535 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-06-27 23:03:10,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 23:03:10,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 23:03:10,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 23:03:10,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 23:03:10,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (1/1) ... [2024-06-27 23:03:10,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:03:10,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:10,720 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 23:03:10,753 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 23:03:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 23:03:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 23:03:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 23:03:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 23:03:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 23:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 23:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 23:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 23:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 23:03:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 23:03:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 23:03:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-27 23:03:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 23:03:10,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 23:03:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 23:03:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 23:03:10,774 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 23:03:10,939 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 23:03:10,941 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 23:03:12,167 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 23:03:12,168 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 23:03:13,240 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 23:03:13,240 INFO L320 CfgBuilder]: Removed 12 assume(true) statements. [2024-06-27 23:03:13,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:03:13 BoogieIcfgContainer [2024-06-27 23:03:13,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 23:03:13,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 23:03:13,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 23:03:13,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 23:03:13,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:03:08" (1/4) ... [2024-06-27 23:03:13,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9c34d4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:03:13, skipping insertion in model container [2024-06-27 23:03:13,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 11:03:09" (2/4) ... [2024-06-27 23:03:13,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9c34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 11:03:13, skipping insertion in model container [2024-06-27 23:03:13,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:03:10" (3/4) ... [2024-06-27 23:03:13,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9c34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 11:03:13, skipping insertion in model container [2024-06-27 23:03:13,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:03:13" (4/4) ... [2024-06-27 23:03:13,246 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-06-27 23:03:13,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 23:03:13,260 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 23:03:13,260 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 23:03:13,483 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 23:03:13,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 97 transitions, 208 flow [2024-06-27 23:03:13,543 INFO L124 PetriNetUnfolderBase]: 28/95 cut-off events. [2024-06-27 23:03:13,544 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 23:03:13,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 28/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 251 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2024-06-27 23:03:13,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 97 transitions, 208 flow [2024-06-27 23:03:13,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 93 transitions, 195 flow [2024-06-27 23:03:13,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 23:03:13,561 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;@3a257ba6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 23:03:13,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 23:03:13,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 23:03:13,567 INFO L124 PetriNetUnfolderBase]: 8/23 cut-off events. [2024-06-27 23:03:13,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:03:13,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:13,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:13,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:13,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:13,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1776879632, now seen corresponding path program 1 times [2024-06-27 23:03:13,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:13,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979423143] [2024-06-27 23:03:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:13,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:13,930 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 23:03:13,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:13,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979423143] [2024-06-27 23:03:13,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979423143] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:13,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:03:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:03:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724298470] [2024-06-27 23:03:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:13,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:03:13,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:03:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 23:03:13,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-27 23:03:13,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 93 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 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) [2024-06-27 23:03:13,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:13,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-27 23:03:13,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:14,966 INFO L124 PetriNetUnfolderBase]: 2533/3824 cut-off events. [2024-06-27 23:03:14,967 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-06-27 23:03:14,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7696 conditions, 3824 events. 2533/3824 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 18385 event pairs, 1725 based on Foata normal form. 0/3002 useless extension candidates. Maximal degree in co-relation 7511. Up to 3791 conditions per place. [2024-06-27 23:03:14,988 INFO L140 encePairwiseOnDemand]: 84/97 looper letters, 80 selfloop transitions, 8 changer transitions 1/93 dead transitions. [2024-06-27 23:03:14,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 93 transitions, 373 flow [2024-06-27 23:03:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:03:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:03:14,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-06-27 23:03:14,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3951890034364261 [2024-06-27 23:03:15,000 INFO L175 Difference]: Start difference. First operand has 72 places, 93 transitions, 195 flow. Second operand 3 states and 115 transitions. [2024-06-27 23:03:15,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 93 transitions, 373 flow [2024-06-27 23:03:15,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 93 transitions, 368 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 23:03:15,009 INFO L231 Difference]: Finished difference. Result has 72 places, 92 transitions, 221 flow [2024-06-27 23:03:15,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=72, PETRI_TRANSITIONS=92} [2024-06-27 23:03:15,014 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 0 predicate places. [2024-06-27 23:03:15,014 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 92 transitions, 221 flow [2024-06-27 23:03:15,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 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) [2024-06-27 23:03:15,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:15,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:15,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 23:03:15,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:15,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:15,016 INFO L85 PathProgramCache]: Analyzing trace with hash -768269484, now seen corresponding path program 1 times [2024-06-27 23:03:15,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:15,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798412680] [2024-06-27 23:03:15,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:15,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-27 23:03:15,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798412680] [2024-06-27 23:03:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798412680] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437554552] [2024-06-27 23:03:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:15,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:15,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:15,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-27 23:03:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:15,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2024-06-27 23:03:15,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-06-27 23:03:15,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-27 23:03:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437554552] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:15,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-27 23:03:15,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-06-27 23:03:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537117434] [2024-06-27 23:03:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:15,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:03:15,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:15,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:03:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:03:15,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-27 23:03:15,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 92 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 23:03:15,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:15,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-27 23:03:15,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:16,407 INFO L124 PetriNetUnfolderBase]: 2502/3773 cut-off events. [2024-06-27 23:03:16,407 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 23:03:16,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7586 conditions, 3773 events. 2502/3773 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17988 event pairs, 1702 based on Foata normal form. 1/2964 useless extension candidates. Maximal degree in co-relation 7533. Up to 3740 conditions per place. [2024-06-27 23:03:16,422 INFO L140 encePairwiseOnDemand]: 87/97 looper letters, 84 selfloop transitions, 8 changer transitions 0/96 dead transitions. [2024-06-27 23:03:16,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 96 transitions, 413 flow [2024-06-27 23:03:16,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:03:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:03:16,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-06-27 23:03:16,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37800687285223367 [2024-06-27 23:03:16,425 INFO L175 Difference]: Start difference. First operand has 72 places, 92 transitions, 221 flow. Second operand 3 states and 110 transitions. [2024-06-27 23:03:16,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 96 transitions, 413 flow [2024-06-27 23:03:16,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 96 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:03:16,427 INFO L231 Difference]: Finished difference. Result has 73 places, 96 transitions, 257 flow [2024-06-27 23:03:16,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=73, PETRI_TRANSITIONS=96} [2024-06-27 23:03:16,427 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2024-06-27 23:03:16,428 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 96 transitions, 257 flow [2024-06-27 23:03:16,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 23:03:16,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:16,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:16,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-27 23:03:16,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:16,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:16,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash -36823286, now seen corresponding path program 1 times [2024-06-27 23:03:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:16,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655049407] [2024-06-27 23:03:16,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-27 23:03:16,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655049407] [2024-06-27 23:03:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655049407] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:16,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136910840] [2024-06-27 23:03:16,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:16,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:16,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:16,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:16,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-27 23:03:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:17,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-27 23:03:17,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-27 23:03:17,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 23:03:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-06-27 23:03:17,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136910840] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 23:03:17,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 23:03:17,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2024-06-27 23:03:17,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727326511] [2024-06-27 23:03:17,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 23:03:17,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:03:17,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:03:17,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:03:17,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-27 23:03:17,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 96 transitions, 257 flow. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 23:03:17,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:17,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-27 23:03:17,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:17,945 INFO L124 PetriNetUnfolderBase]: 2502/3797 cut-off events. [2024-06-27 23:03:17,945 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 23:03:17,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7673 conditions, 3797 events. 2502/3797 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 18074 event pairs, 1702 based on Foata normal form. 12/2999 useless extension candidates. Maximal degree in co-relation 7553. Up to 3736 conditions per place. [2024-06-27 23:03:17,959 INFO L140 encePairwiseOnDemand]: 80/97 looper letters, 76 selfloop transitions, 40 changer transitions 0/120 dead transitions. [2024-06-27 23:03:17,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 120 transitions, 585 flow [2024-06-27 23:03:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:03:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:03:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-06-27 23:03:17,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2422680412371134 [2024-06-27 23:03:17,965 INFO L175 Difference]: Start difference. First operand has 73 places, 96 transitions, 257 flow. Second operand 8 states and 188 transitions. [2024-06-27 23:03:17,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 120 transitions, 585 flow [2024-06-27 23:03:17,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 120 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:03:17,968 INFO L231 Difference]: Finished difference. Result has 82 places, 120 transitions, 487 flow [2024-06-27 23:03:17,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=487, PETRI_PLACES=82, PETRI_TRANSITIONS=120} [2024-06-27 23:03:17,969 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-06-27 23:03:17,969 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 120 transitions, 487 flow [2024-06-27 23:03:17,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 23:03:17,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:17,969 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:17,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-27 23:03:18,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-06-27 23:03:18,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:18,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:18,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2021715184, now seen corresponding path program 2 times [2024-06-27 23:03:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532342568] [2024-06-27 23:03:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:18,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-06-27 23:03:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532342568] [2024-06-27 23:03:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532342568] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:18,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335932447] [2024-06-27 23:03:18,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-27 23:03:18,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:18,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:18,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:18,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-27 23:03:18,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-27 23:03:18,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-27 23:03:18,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-27 23:03:18,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-06-27 23:03:18,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-27 23:03:18,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335932447] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:18,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-27 23:03:18,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2024-06-27 23:03:18,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107123538] [2024-06-27 23:03:18,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:18,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:03:18,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:18,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:03:18,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:03:19,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 97 [2024-06-27 23:03:19,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 120 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 23:03:19,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:19,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 97 [2024-06-27 23:03:19,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:20,324 INFO L124 PetriNetUnfolderBase]: 3990/6050 cut-off events. [2024-06-27 23:03:20,325 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 23:03:20,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12276 conditions, 6050 events. 3990/6050 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 30986 event pairs, 1915 based on Foata normal form. 624/5471 useless extension candidates. Maximal degree in co-relation 12104. Up to 3620 conditions per place. [2024-06-27 23:03:20,342 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 180 selfloop transitions, 3 changer transitions 0/185 dead transitions. [2024-06-27 23:03:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 185 transitions, 985 flow [2024-06-27 23:03:20,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:03:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:03:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-06-27 23:03:20,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.570446735395189 [2024-06-27 23:03:20,344 INFO L175 Difference]: Start difference. First operand has 82 places, 120 transitions, 487 flow. Second operand 3 states and 166 transitions. [2024-06-27 23:03:20,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 185 transitions, 985 flow [2024-06-27 23:03:20,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 185 transitions, 903 flow, removed 29 selfloop flow, removed 3 redundant places. [2024-06-27 23:03:20,348 INFO L231 Difference]: Finished difference. Result has 82 places, 122 transitions, 428 flow [2024-06-27 23:03:20,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=82, PETRI_TRANSITIONS=122} [2024-06-27 23:03:20,349 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-06-27 23:03:20,349 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 122 transitions, 428 flow [2024-06-27 23:03:20,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 23:03:20,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:20,350 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:20,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-06-27 23:03:20,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:20,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:20,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:20,563 INFO L85 PathProgramCache]: Analyzing trace with hash -54489914, now seen corresponding path program 1 times [2024-06-27 23:03:20,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:20,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500010609] [2024-06-27 23:03:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:20,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-06-27 23:03:20,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:20,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500010609] [2024-06-27 23:03:20,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500010609] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:20,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504113853] [2024-06-27 23:03:20,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:20,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:20,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:20,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-06-27 23:03:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:21,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-27 23:03:21,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-06-27 23:03:21,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 23:03:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-06-27 23:03:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504113853] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 23:03:21,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 23:03:21,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-06-27 23:03:21,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827299457] [2024-06-27 23:03:21,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 23:03:21,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-06-27 23:03:21,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:21,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-06-27 23:03:21,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2024-06-27 23:03:21,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 97 [2024-06-27 23:03:21,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 122 transitions, 428 flow. Second operand has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 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 23:03:21,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:21,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 97 [2024-06-27 23:03:21,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:22,380 INFO L124 PetriNetUnfolderBase]: 3598/5555 cut-off events. [2024-06-27 23:03:22,380 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-06-27 23:03:22,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11703 conditions, 5555 events. 3598/5555 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 28670 event pairs, 2552 based on Foata normal form. 1/4370 useless extension candidates. Maximal degree in co-relation 11504. Up to 5457 conditions per place. [2024-06-27 23:03:22,395 INFO L140 encePairwiseOnDemand]: 80/97 looper letters, 78 selfloop transitions, 44 changer transitions 0/126 dead transitions. [2024-06-27 23:03:22,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 126 transitions, 696 flow [2024-06-27 23:03:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-06-27 23:03:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-06-27 23:03:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 220 transitions. [2024-06-27 23:03:22,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14175257731958762 [2024-06-27 23:03:22,397 INFO L175 Difference]: Start difference. First operand has 82 places, 122 transitions, 428 flow. Second operand 16 states and 220 transitions. [2024-06-27 23:03:22,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 126 transitions, 696 flow [2024-06-27 23:03:22,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 693 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:03:22,401 INFO L231 Difference]: Finished difference. Result has 98 places, 126 transitions, 555 flow [2024-06-27 23:03:22,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=555, PETRI_PLACES=98, PETRI_TRANSITIONS=126} [2024-06-27 23:03:22,401 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 26 predicate places. [2024-06-27 23:03:22,402 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 126 transitions, 555 flow [2024-06-27 23:03:22,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 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 23:03:22,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:22,402 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:22,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-06-27 23:03:22,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:22,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:22,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1247403652, now seen corresponding path program 2 times [2024-06-27 23:03:22,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:22,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921018984] [2024-06-27 23:03:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:22,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-06-27 23:03:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921018984] [2024-06-27 23:03:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921018984] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847318586] [2024-06-27 23:03:22,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-27 23:03:22,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:22,876 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:22,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-06-27 23:03:23,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-27 23:03:23,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-27 23:03:23,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 15 conjunts are in the unsatisfiable core [2024-06-27 23:03:23,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-06-27 23:03:23,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-27 23:03:23,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847318586] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:23,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-27 23:03:23,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-06-27 23:03:23,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97227339] [2024-06-27 23:03:23,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:23,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:03:23,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:23,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:03:23,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-06-27 23:03:23,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 97 [2024-06-27 23:03:23,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 126 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 23:03:23,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:23,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 97 [2024-06-27 23:03:23,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:25,037 INFO L124 PetriNetUnfolderBase]: 4653/7129 cut-off events. [2024-06-27 23:03:25,037 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-06-27 23:03:25,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15214 conditions, 7129 events. 4653/7129 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 37606 event pairs, 1874 based on Foata normal form. 201/5955 useless extension candidates. Maximal degree in co-relation 15132. Up to 3437 conditions per place. [2024-06-27 23:03:25,057 INFO L140 encePairwiseOnDemand]: 88/97 looper letters, 265 selfloop transitions, 10 changer transitions 0/277 dead transitions. [2024-06-27 23:03:25,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 277 transitions, 1429 flow [2024-06-27 23:03:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:03:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:03:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 266 transitions. [2024-06-27 23:03:25,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4570446735395189 [2024-06-27 23:03:25,059 INFO L175 Difference]: Start difference. First operand has 98 places, 126 transitions, 555 flow. Second operand 6 states and 266 transitions. [2024-06-27 23:03:25,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 277 transitions, 1429 flow [2024-06-27 23:03:25,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 277 transitions, 1349 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 23:03:25,063 INFO L231 Difference]: Finished difference. Result has 100 places, 133 transitions, 546 flow [2024-06-27 23:03:25,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=546, PETRI_PLACES=100, PETRI_TRANSITIONS=133} [2024-06-27 23:03:25,064 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2024-06-27 23:03:25,064 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 133 transitions, 546 flow [2024-06-27 23:03:25,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 23:03:25,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:25,065 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:25,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-06-27 23:03:25,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:25,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 23:03:25,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:25,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1337571029, now seen corresponding path program 3 times [2024-06-27 23:03:25,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:25,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696931172] [2024-06-27 23:03:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:25,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-06-27 23:03:25,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:25,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696931172] [2024-06-27 23:03:25,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696931172] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819959703] [2024-06-27 23:03:25,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-06-27 23:03:25,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:25,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:03:25,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 23:03:25,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-06-27 23:03:25,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-06-27 23:03:25,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-27 23:03:25,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 19 conjunts are in the unsatisfiable core [2024-06-27 23:03:25,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 23:03:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-06-27 23:03:26,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 23:03:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-06-27 23:03:26,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819959703] provided 1 perfect and 1 imperfect interpolant sequences [2024-06-27 23:03:26,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-06-27 23:03:26,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 20 [2024-06-27 23:03:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896503535] [2024-06-27 23:03:26,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:26,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:03:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:03:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-06-27 23:03:26,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 97 [2024-06-27 23:03:26,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 133 transitions, 546 flow. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 23:03:26,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:26,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 97 [2024-06-27 23:03:26,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:27,515 INFO L124 PetriNetUnfolderBase]: 3987/6171 cut-off events. [2024-06-27 23:03:27,515 INFO L125 PetriNetUnfolderBase]: For 1753/1753 co-relation queries the response was YES. [2024-06-27 23:03:27,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13779 conditions, 6171 events. 3987/6171 cut-off events. For 1753/1753 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 32724 event pairs, 2962 based on Foata normal form. 294/5235 useless extension candidates. Maximal degree in co-relation 13704. Up to 6156 conditions per place. [2024-06-27 23:03:27,528 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 0 selfloop transitions, 0 changer transitions 131/131 dead transitions. [2024-06-27 23:03:27,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 131 transitions, 792 flow [2024-06-27 23:03:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:03:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:03:27,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-27 23:03:27,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33676975945017185 [2024-06-27 23:03:27,530 INFO L175 Difference]: Start difference. First operand has 100 places, 133 transitions, 546 flow. Second operand 3 states and 98 transitions. [2024-06-27 23:03:27,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 131 transitions, 792 flow [2024-06-27 23:03:27,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 131 transitions, 788 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:03:27,533 INFO L231 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2024-06-27 23:03:27,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2024-06-27 23:03:27,533 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 27 predicate places. [2024-06-27 23:03:27,533 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2024-06-27 23:03:27,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 23:03:27,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-27 23:03:27,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-27 23:03:27,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 23:03:27,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 23:03:27,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-06-27 23:03:27,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 23:03:27,739 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-06-27 23:03:27,741 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 23:03:27,742 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 23:03:27,744 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 23:03:27,744 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 23:03:27,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 11:03:27 BasicIcfg [2024-06-27 23:03:27,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 23:03:27,745 INFO L158 Benchmark]: Toolchain (without parser) took 17759.14ms. Allocated memory was 138.4MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 101.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-06-27 23:03:27,746 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 23:03:27,746 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 23:03:27,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.46ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 76.6MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 23:03:27,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.59ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 68.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-27 23:03:27,747 INFO L158 Benchmark]: Boogie Preprocessor took 174.05ms. Allocated memory is still 138.4MB. Free memory was 68.2MB in the beginning and 57.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-27 23:03:27,747 INFO L158 Benchmark]: RCFGBuilder took 2605.73ms. Allocated memory was 138.4MB in the beginning and 272.6MB in the end (delta: 134.2MB). Free memory was 57.7MB in the beginning and 108.8MB in the end (delta: -51.1MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2024-06-27 23:03:27,747 INFO L158 Benchmark]: TraceAbstraction took 14503.32ms. Allocated memory was 272.6MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 107.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 969.7MB. Max. memory is 16.1GB. [2024-06-27 23:03:27,748 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 0.15ms. Allocated memory is still 102.8MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.46ms. Allocated memory is still 138.4MB. Free memory was 101.2MB in the beginning and 76.6MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.59ms. Allocated memory is still 138.4MB. Free memory was 76.6MB in the beginning and 68.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 174.05ms. Allocated memory is still 138.4MB. Free memory was 68.2MB in the beginning and 57.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2605.73ms. Allocated memory was 138.4MB in the beginning and 272.6MB in the end (delta: 134.2MB). Free memory was 57.7MB in the beginning and 108.8MB in the end (delta: -51.1MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14503.32ms. Allocated memory was 272.6MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 107.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 969.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 230]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 231]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.2s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 597 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1539 IncrementalHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 2 mSDtfsCounter, 1539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=5, InterpolantAutomatonStates: 42, 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: 0.3s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 507 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 621 ConstructedInterpolants, 0 QuantifiedInterpolants, 2512 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2405 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 864/941 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 23:03:27,771 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