./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/parallel-parallel-sum-1-dsl.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/parallel-parallel-sum-1-dsl.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/parallel-parallel-sum-1-dsl.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 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:36:24,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:36:24,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:36:24,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:36:24,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:36:24,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:36:24,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:36:24,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:36:24,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:36:24,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:36:24,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:36:24,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:36:24,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:36:24,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:36:24,658 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:36:24,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:36:24,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:36:24,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:36:24,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:36:24,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:36:24,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:36:24,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:36:24,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:36:24,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:36:24,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:36:24,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:36:24,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:36:24,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:36:24,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:36:24,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:36:24,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:36:24,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:36:24,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:36:24,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:36:24,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:36:24,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:36:24,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:36:24,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:36:24,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:36:24,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:36:24,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:36:24,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:36:24,912 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:36:24,912 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:36:24,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/parallel-parallel-sum-1-dsl.wvr.yml/witness.yml [2024-02-07 14:36:24,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:36:24,994 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:36:24,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-02-07 14:36:26,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:36:26,210 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:36:26,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-02-07 14:36:26,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95df3ea4/9d201b5b20f246209100ce9d82bb74eb/FLAGd3c76bbf7 [2024-02-07 14:36:26,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95df3ea4/9d201b5b20f246209100ce9d82bb74eb [2024-02-07 14:36:26,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:36:26,229 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:36:26,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:36:26,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:36:26,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:36:26,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:36:24" (1/2) ... [2024-02-07 14:36:26,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778abfd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:36:26, skipping insertion in model container [2024-02-07 14:36:26,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:36:24" (1/2) ... [2024-02-07 14:36:26,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61d867e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:36:26, skipping insertion in model container [2024-02-07 14:36:26,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:36:26" (2/2) ... [2024-02-07 14:36:26,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26, skipping insertion in model container [2024-02-07 14:36:26,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:36:26" (2/2) ... [2024-02-07 14:36:26,237 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:36:26,259 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:36:26,260 INFO L76 edCorrectnessWitness]: Location invariant before [L122-L122] -2147483647 <= i_7 [2024-02-07 14:36:26,260 INFO L76 edCorrectnessWitness]: Location invariant before [L88-L88] i_3 == 0 [2024-02-07 14:36:26,260 INFO L76 edCorrectnessWitness]: Location invariant before [L191-L191] (b <= -1) && (b != 0) [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L192-L192] (1 <= b) && (b != 0) [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L185-L185] ((((((((8 <= i && i <= 2147483646) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L180-L180] -2147483647 <= size [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L52-L52] -2147483647 <= i_3 [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L89-L89] s_2 == 0 [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L70-L70] -2147483647 <= i_3 [2024-02-07 14:36:26,261 INFO L76 edCorrectnessWitness]: Location invariant before [L104-L104] -2147483647 <= i_7 [2024-02-07 14:36:26,262 INFO L76 edCorrectnessWitness]: Location invariant before [L181-L181] -2147483647 <= size [2024-02-07 14:36:26,262 INFO L76 edCorrectnessWitness]: Location invariant before [L141-L141] s_6 == 0 [2024-02-07 14:36:26,262 INFO L76 edCorrectnessWitness]: Location invariant before [L140-L140] i_7 == 0 [2024-02-07 14:36:26,262 INFO L76 edCorrectnessWitness]: Location invariant before [L183-L183] -2147483647 <= size [2024-02-07 14:36:26,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:36:26,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2024-02-07 14:36:26,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:36:26,460 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:36:26,518 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] Start Parsing Local Start Parsing Local [2024-02-07 14:36:26,529 WARN L423 MainDispatcher]: Unable to annotate * arr = (int*)malloc(sizeof(int) * (size_t)size) with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:36:26,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:36:26,549 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:36:26,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26 WrapperNode [2024-02-07 14:36:26,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:36:26,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:36:26,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:36:26,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:36:26,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,605 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 322 [2024-02-07 14:36:26,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:36:26,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:36:26,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:36:26,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:36:26,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,633 INFO L175 MemorySlicer]: Split 19 memory accesses to 8 slices as follows [2, 2, 2, 5, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-02-07 14:36:26,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:36:26,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:36:26,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:36:26,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:36:26,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (1/1) ... [2024-02-07 14:36:26,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:36:26,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:36:26,690 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) [2024-02-07 14:36:26,697 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 [2024-02-07 14:36:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:36:26,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:36:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:36:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:36:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:36:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:36:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:36:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:36:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 14:36:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-07 14:36:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-02-07 14:36:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 14:36:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 14:36:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 14:36:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 14:36:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 14:36:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 14:36:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-07 14:36:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-07 14:36:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:36:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:36:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:36:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-02-07 14:36:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-02-07 14:36:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-02-07 14:36:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-02-07 14:36:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:36:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:36:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 14:36:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:36:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:36:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:36:26,734 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:36:26,883 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:36:26,884 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:36:27,309 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:36:27,310 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:36:27,548 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:36:27,548 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-02-07 14:36:27,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:36:27 BoogieIcfgContainer [2024-02-07 14:36:27,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:36:27,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:36:27,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:36:27,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:36:27,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:36:24" (1/4) ... [2024-02-07 14:36:27,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4687695b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:36:27, skipping insertion in model container [2024-02-07 14:36:27,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:36:26" (2/4) ... [2024-02-07 14:36:27,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4687695b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:36:27, skipping insertion in model container [2024-02-07 14:36:27,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:36:26" (3/4) ... [2024-02-07 14:36:27,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4687695b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:36:27, skipping insertion in model container [2024-02-07 14:36:27,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:36:27" (4/4) ... [2024-02-07 14:36:27,560 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-02-07 14:36:27,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:36:27,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-07 14:36:27,575 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:36:27,684 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-02-07 14:36:27,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 111 transitions, 288 flow [2024-02-07 14:36:27,758 INFO L124 PetriNetUnfolderBase]: 13/97 cut-off events. [2024-02-07 14:36:27,759 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 14:36:27,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 97 events. 13/97 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 271 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 99. Up to 3 conditions per place. [2024-02-07 14:36:27,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 111 transitions, 288 flow [2024-02-07 14:36:27,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 96 transitions, 240 flow [2024-02-07 14:36:27,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:36:27,789 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;@60417dd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:36:27,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-02-07 14:36:27,792 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:36:27,792 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:36:27,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:36:27,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:36:27,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:36:27,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 43 more)] === [2024-02-07 14:36:27,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:36:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash 34421, now seen corresponding path program 1 times [2024-02-07 14:36:27,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:36:27,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407657786] [2024-02-07 14:36:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:36:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:36:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:36:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:36:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:36:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407657786] [2024-02-07 14:36:28,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407657786] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:36:28,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:36:28,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:36:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331152425] [2024-02-07 14:36:28,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:36:28,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:36:28,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:36:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:36:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:36:28,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 115 [2024-02-07 14:36:28,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-02-07 14:36:28,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:36:28,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 115 [2024-02-07 14:36:28,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:36:53,466 INFO L124 PetriNetUnfolderBase]: 329846/414391 cut-off events. [2024-02-07 14:36:53,467 INFO L125 PetriNetUnfolderBase]: For 29592/29592 co-relation queries the response was YES. [2024-02-07 14:36:54,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 861714 conditions, 414391 events. 329846/414391 cut-off events. For 29592/29592 co-relation queries the response was YES. Maximal size of possible extension queue 19226. Compared 2622592 event pairs, 321645 based on Foata normal form. 32462/338575 useless extension candidates. Maximal degree in co-relation 858772. Up to 413897 conditions per place. [2024-02-07 14:36:56,491 INFO L140 encePairwiseOnDemand]: 99/115 looper letters, 69 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2024-02-07 14:36:56,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 354 flow [2024-02-07 14:36:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:36:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:36:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-02-07 14:36:56,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39420289855072466 [2024-02-07 14:36:56,502 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 240 flow. Second operand 3 states and 136 transitions. [2024-02-07 14:36:56,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 354 flow [2024-02-07 14:36:57,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 82 transitions, 322 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-07 14:36:57,439 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 184 flow [2024-02-07 14:36:57,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2024-02-07 14:36:57,444 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -16 predicate places. [2024-02-07 14:36:57,444 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 184 flow [2024-02-07 14:36:57,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-02-07 14:36:57,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:36:57,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:36:57,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:36:57,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 43 more)] === [2024-02-07 14:36:57,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:36:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1026501290, now seen corresponding path program 1 times [2024-02-07 14:36:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:36:57,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162651511] [2024-02-07 14:36:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:36:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:36:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:36:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:36:57,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:36:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162651511] [2024-02-07 14:36:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162651511] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:36:57,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:36:57,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:36:57,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347535372] [2024-02-07 14:36:57,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:36:57,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:36:57,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:36:57,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:36:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:36:57,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 115 [2024-02-07 14:36:57,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-02-07 14:36:57,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:36:57,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 115 [2024-02-07 14:36:57,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand