./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/stateful01-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/pthread/stateful01-2.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/stateful01-2.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-ab2e0ac-m [2024-01-29 14:11:31,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:11:31,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:11:31,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:11:31,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:11:31,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:11:31,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:11:31,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:11:31,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:11:31,728 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:11:31,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:11:31,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:11:31,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:11:31,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:11:31,729 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:11:31,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:11:31,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:11:31,732 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:11:31,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:11:31,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:11:31,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:11:31,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:11:31,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:11:31,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:11:31,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:11:31,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:11:31,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:11:31,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:11:31,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:11:31,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:11:31,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:11:31,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:11:31,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:31,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:11:31,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:11:31,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:11:31,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:11:31,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:11:31,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:11:31,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:11:31,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:11:31,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:11:32,000 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:11:32,001 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:11:32,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/stateful01-2.yml/witness.yml [2024-01-29 14:11:32,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:11:32,142 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:11:32,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2024-01-29 14:11:33,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:11:33,369 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:11:33,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2024-01-29 14:11:33,391 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521a3333c/ae7af48b46914c1c8916f72bcb5c1b58/FLAG1dd0f8c0f [2024-01-29 14:11:33,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521a3333c/ae7af48b46914c1c8916f72bcb5c1b58 [2024-01-29 14:11:33,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:11:33,406 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:11:33,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:33,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:11:33,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:11:33,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:32" (1/2) ... [2024-01-29 14:11:33,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be6041a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:32" (1/2) ... [2024-01-29 14:11:33,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@729bb1a7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:33" (2/2) ... [2024-01-29 14:11:33,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be6041a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33, skipping insertion in model container [2024-01-29 14:11:33,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:33" (2/2) ... [2024-01-29 14:11:33,415 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:11:33,452 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:11:33,453 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] data2 == 0 [2024-01-29 14:11:33,453 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] data1 == 0 [2024-01-29 14:11:33,453 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] data2 == 10 [2024-01-29 14:11:33,453 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] data1 == 10 [2024-01-29 14:11:33,453 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] 10 <= data1 [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (unsigned long )arg == 0UL [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] 11 <= data1 [2024-01-29 14:11:33,454 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (unsigned long )arg == 0UL [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] 10 <= data1 [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] data2 <= 2147483641 [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] data2 == 0 [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] data1 == 0 [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (unsigned long )arg == 0UL [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 10 <= data1 [2024-01-29 14:11:33,455 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] -2147483647 <= data2 [2024-01-29 14:11:33,456 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] (unsigned long )arg == 0UL [2024-01-29 14:11:33,456 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 10 <= data1 [2024-01-29 14:11:33,456 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] data1 == 10 [2024-01-29 14:11:33,456 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] data2 == 0 [2024-01-29 14:11:33,456 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (unsigned long )arg == 0UL [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (unsigned long )arg == 0UL [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] 10 <= data1 [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 15 <= data1 [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (unsigned long )arg == 0UL [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] data1 == 0 [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] data2 == 0 [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 10 <= data1 [2024-01-29 14:11:33,457 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (unsigned long )arg == 0UL [2024-01-29 14:11:33,496 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:11:33,771 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-01-29 14:11:33,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:33,786 INFO L202 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:11:33,873 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-01-29 14:11:33,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:33,906 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:11:33,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33 WrapperNode [2024-01-29 14:11:33,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:33,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:33,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:11:33,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:11:33,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,946 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-01-29 14:11:33,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:33,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:11:33,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:11:33,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:11:33,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,989 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 5, 5, 2, 2]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0]. The 2 writes are split as follows [0, 0, 0, 1, 1]. [2024-01-29 14:11:33,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:33,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:34,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:11:34,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:11:34,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:11:34,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:11:34,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (1/1) ... [2024-01-29 14:11:34,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:34,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:11:34,028 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) [2024-01-29 14:11:34,036 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 [2024-01-29 14:11:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:11:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:11:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:11:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:11:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:11:34,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:11:34,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:11:34,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:11:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:11:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:11:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:11:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:11:34,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:11:34,064 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:11:34,182 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:11:34,183 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:11:34,402 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:11:34,402 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:11:34,504 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:11:34,508 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:11:34,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:34 BoogieIcfgContainer [2024-01-29 14:11:34,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:11:34,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:11:34,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:11:34,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:11:34,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:32" (1/4) ... [2024-01-29 14:11:34,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f2bde2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:11:33" (2/4) ... [2024-01-29 14:11:34,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f2bde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:33" (3/4) ... [2024-01-29 14:11:34,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f2bde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:11:34, skipping insertion in model container [2024-01-29 14:11:34,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:34" (4/4) ... [2024-01-29 14:11:34,517 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2024-01-29 14:11:34,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:11:34,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2024-01-29 14:11:34,530 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:11:34,605 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 14:11:34,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 102 transitions, 218 flow [2024-01-29 14:11:34,670 INFO L124 PetriNetUnfolderBase]: 1/100 cut-off events. [2024-01-29 14:11:34,671 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:11:34,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 1/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-01-29 14:11:34,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 102 transitions, 218 flow [2024-01-29 14:11:34,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 97 transitions, 206 flow [2024-01-29 14:11:34,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:11:34,691 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;@673a86ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:11:34,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-01-29 14:11:34,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:11:34,694 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:11:34,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:34,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:34,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:11:34,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:34,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 9952, now seen corresponding path program 1 times [2024-01-29 14:11:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962121961] [2024-01-29 14:11:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962121961] [2024-01-29 14:11:34,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962121961] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:34,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:11:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420614179] [2024-01-29 14:11:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:34,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:34,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:34,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:34,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 102 [2024-01-29 14:11:35,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 97 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2024-01-29 14:11:35,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 102 [2024-01-29 14:11:35,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:35,289 INFO L124 PetriNetUnfolderBase]: 360/1136 cut-off events. [2024-01-29 14:11:35,289 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-01-29 14:11:35,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1136 events. 360/1136 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7363 event pairs, 360 based on Foata normal form. 0/986 useless extension candidates. Maximal degree in co-relation 1696. Up to 652 conditions per place. [2024-01-29 14:11:35,302 INFO L140 encePairwiseOnDemand]: 97/102 looper letters, 34 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2024-01-29 14:11:35,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 272 flow [2024-01-29 14:11:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:35,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:35,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2024-01-29 14:11:35,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7254901960784313 [2024-01-29 14:11:35,316 INFO L175 Difference]: Start difference. First operand has 104 places, 97 transitions, 206 flow. Second operand 3 states and 222 transitions. [2024-01-29 14:11:35,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 272 flow [2024-01-29 14:11:35,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 94 transitions, 264 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:11:35,324 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 196 flow [2024-01-29 14:11:35,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-01-29 14:11:35,329 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -5 predicate places. [2024-01-29 14:11:35,329 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 196 flow [2024-01-29 14:11:35,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2024-01-29 14:11:35,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:11:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:11:35,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:35,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash 308815, now seen corresponding path program 1 times [2024-01-29 14:11:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180713736] [2024-01-29 14:11:35,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:35,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180713736] [2024-01-29 14:11:35,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180713736] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:11:35,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396077231] [2024-01-29 14:11:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:35,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 102 [2024-01-29 14:11:35,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2024-01-29 14:11:35,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 102 [2024-01-29 14:11:35,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:35,509 INFO L124 PetriNetUnfolderBase]: 240/706 cut-off events. [2024-01-29 14:11:35,510 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:11:35,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 706 events. 240/706 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4372 event pairs, 240 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1151. Up to 442 conditions per place. [2024-01-29 14:11:35,515 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 29 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-01-29 14:11:35,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 90 transitions, 250 flow [2024-01-29 14:11:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2024-01-29 14:11:35,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7516339869281046 [2024-01-29 14:11:35,521 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 196 flow. Second operand 3 states and 230 transitions. [2024-01-29 14:11:35,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 90 transitions, 250 flow [2024-01-29 14:11:35,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 90 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:35,523 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 188 flow [2024-01-29 14:11:35,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2024-01-29 14:11:35,524 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -9 predicate places. [2024-01-29 14:11:35,524 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 188 flow [2024-01-29 14:11:35,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2024-01-29 14:11:35,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:35,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:11:35,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:35,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1698758338, now seen corresponding path program 1 times [2024-01-29 14:11:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428541478] [2024-01-29 14:11:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:35,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428541478] [2024-01-29 14:11:35,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428541478] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:11:35,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288441715] [2024-01-29 14:11:35,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 102 [2024-01-29 14:11:35,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-01-29 14:11:35,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 102 [2024-01-29 14:11:35,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:35,794 INFO L124 PetriNetUnfolderBase]: 412/1210 cut-off events. [2024-01-29 14:11:35,794 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-01-29 14:11:35,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1973 conditions, 1210 events. 412/1210 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8131 event pairs, 203 based on Foata normal form. 1/1026 useless extension candidates. Maximal degree in co-relation 1952. Up to 724 conditions per place. [2024-01-29 14:11:35,799 INFO L140 encePairwiseOnDemand]: 95/102 looper letters, 42 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-01-29 14:11:35,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 95 transitions, 289 flow [2024-01-29 14:11:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2024-01-29 14:11:35,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7483660130718954 [2024-01-29 14:11:35,801 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 188 flow. Second operand 3 states and 229 transitions. [2024-01-29 14:11:35,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 95 transitions, 289 flow [2024-01-29 14:11:35,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 95 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:35,805 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 201 flow [2024-01-29 14:11:35,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=94, PETRI_TRANSITIONS=90} [2024-01-29 14:11:35,806 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -10 predicate places. [2024-01-29 14:11:35,806 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 201 flow [2024-01-29 14:11:35,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-01-29 14:11:35,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:35,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:35,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:11:35,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:35,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash 419201516, now seen corresponding path program 1 times [2024-01-29 14:11:35,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:35,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673235096] [2024-01-29 14:11:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:35,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673235096] [2024-01-29 14:11:35,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673235096] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:35,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:35,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:11:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023052925] [2024-01-29 14:11:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:35,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 102 [2024-01-29 14:11:35,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-01-29 14:11:35,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:35,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 102 [2024-01-29 14:11:35,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,006 INFO L124 PetriNetUnfolderBase]: 240/783 cut-off events. [2024-01-29 14:11:36,007 INFO L125 PetriNetUnfolderBase]: For 44/66 co-relation queries the response was YES. [2024-01-29 14:11:36,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 783 events. 240/783 cut-off events. For 44/66 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4766 event pairs, 90 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 978. Up to 322 conditions per place. [2024-01-29 14:11:36,012 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 43 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2024-01-29 14:11:36,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 102 transitions, 322 flow [2024-01-29 14:11:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-01-29 14:11:36,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8137254901960784 [2024-01-29 14:11:36,014 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 201 flow. Second operand 3 states and 249 transitions. [2024-01-29 14:11:36,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 102 transitions, 322 flow [2024-01-29 14:11:36,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 102 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:11:36,020 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 213 flow [2024-01-29 14:11:36,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2024-01-29 14:11:36,021 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -9 predicate places. [2024-01-29 14:11:36,021 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 213 flow [2024-01-29 14:11:36,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-01-29 14:11:36,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:11:36,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:36,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1332084932, now seen corresponding path program 1 times [2024-01-29 14:11:36,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313756111] [2024-01-29 14:11:36,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:36,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313756111] [2024-01-29 14:11:36,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313756111] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678968788] [2024-01-29 14:11:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 102 [2024-01-29 14:11:36,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-01-29 14:11:36,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 102 [2024-01-29 14:11:36,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,265 INFO L124 PetriNetUnfolderBase]: 213/865 cut-off events. [2024-01-29 14:11:36,266 INFO L125 PetriNetUnfolderBase]: For 83/93 co-relation queries the response was YES. [2024-01-29 14:11:36,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 865 events. 213/865 cut-off events. For 83/93 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5587 event pairs, 101 based on Foata normal form. 108/804 useless extension candidates. Maximal degree in co-relation 553. Up to 367 conditions per place. [2024-01-29 14:11:36,269 INFO L140 encePairwiseOnDemand]: 93/102 looper letters, 40 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2024-01-29 14:11:36,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 94 transitions, 309 flow [2024-01-29 14:11:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-01-29 14:11:36,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7475490196078431 [2024-01-29 14:11:36,271 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 213 flow. Second operand 4 states and 305 transitions. [2024-01-29 14:11:36,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 94 transitions, 309 flow [2024-01-29 14:11:36,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 94 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:11:36,274 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 200 flow [2024-01-29 14:11:36,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-01-29 14:11:36,276 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -14 predicate places. [2024-01-29 14:11:36,276 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 200 flow [2024-01-29 14:11:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2024-01-29 14:11:36,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:11:36,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:36,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,278 INFO L85 PathProgramCache]: Analyzing trace with hash -234538837, now seen corresponding path program 1 times [2024-01-29 14:11:36,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215942782] [2024-01-29 14:11:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:36,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215942782] [2024-01-29 14:11:36,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215942782] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572589712] [2024-01-29 14:11:36,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 102 [2024-01-29 14:11:36,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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) [2024-01-29 14:11:36,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 102 [2024-01-29 14:11:36,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,517 INFO L124 PetriNetUnfolderBase]: 213/654 cut-off events. [2024-01-29 14:11:36,517 INFO L125 PetriNetUnfolderBase]: For 74/90 co-relation queries the response was YES. [2024-01-29 14:11:36,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 654 events. 213/654 cut-off events. For 74/90 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3836 event pairs, 49 based on Foata normal form. 108/702 useless extension candidates. Maximal degree in co-relation 1126. Up to 337 conditions per place. [2024-01-29 14:11:36,520 INFO L140 encePairwiseOnDemand]: 93/102 looper letters, 47 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2024-01-29 14:11:36,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 94 transitions, 327 flow [2024-01-29 14:11:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 312 transitions. [2024-01-29 14:11:36,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2024-01-29 14:11:36,521 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 200 flow. Second operand 4 states and 312 transitions. [2024-01-29 14:11:36,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 94 transitions, 327 flow [2024-01-29 14:11:36,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 94 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:36,523 INFO L231 Difference]: Finished difference. Result has 84 places, 77 transitions, 187 flow [2024-01-29 14:11:36,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=84, PETRI_TRANSITIONS=77} [2024-01-29 14:11:36,524 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -20 predicate places. [2024-01-29 14:11:36,524 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 77 transitions, 187 flow [2024-01-29 14:11:36,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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) [2024-01-29 14:11:36,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:11:36,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:36,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1734321806, now seen corresponding path program 1 times [2024-01-29 14:11:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17444470] [2024-01-29 14:11:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17444470] [2024-01-29 14:11:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17444470] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456536330] [2024-01-29 14:11:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 102 [2024-01-29 14:11:36,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 77 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-01-29 14:11:36,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 102 [2024-01-29 14:11:36,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,688 INFO L124 PetriNetUnfolderBase]: 360/927 cut-off events. [2024-01-29 14:11:36,688 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-01-29 14:11:36,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 927 events. 360/927 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5142 event pairs, 161 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 1680. Up to 628 conditions per place. [2024-01-29 14:11:36,692 INFO L140 encePairwiseOnDemand]: 92/102 looper letters, 42 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-01-29 14:11:36,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 272 flow [2024-01-29 14:11:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-01-29 14:11:36,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6617647058823529 [2024-01-29 14:11:36,693 INFO L175 Difference]: Start difference. First operand has 84 places, 77 transitions, 187 flow. Second operand 4 states and 270 transitions. [2024-01-29 14:11:36,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 272 flow [2024-01-29 14:11:36,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:36,695 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 172 flow [2024-01-29 14:11:36,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=78, PETRI_TRANSITIONS=70} [2024-01-29 14:11:36,696 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -26 predicate places. [2024-01-29 14:11:36,696 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 172 flow [2024-01-29 14:11:36,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-01-29 14:11:36,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,697 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, 1] [2024-01-29 14:11:36,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:11:36,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:36,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash 922078032, now seen corresponding path program 1 times [2024-01-29 14:11:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77012684] [2024-01-29 14:11:36,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:36,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77012684] [2024-01-29 14:11:36,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77012684] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385919588] [2024-01-29 14:11:36,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 102 [2024-01-29 14:11:36,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 70 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2024-01-29 14:11:36,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 102 [2024-01-29 14:11:36,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:36,862 INFO L124 PetriNetUnfolderBase]: 360/917 cut-off events. [2024-01-29 14:11:36,863 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-01-29 14:11:36,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 917 events. 360/917 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4988 event pairs, 63 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 1670. Up to 514 conditions per place. [2024-01-29 14:11:36,867 INFO L140 encePairwiseOnDemand]: 99/102 looper letters, 49 selfloop transitions, 3 changer transitions 0/81 dead transitions. [2024-01-29 14:11:36,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 301 flow [2024-01-29 14:11:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-01-29 14:11:36,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6715686274509803 [2024-01-29 14:11:36,868 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 172 flow. Second operand 4 states and 274 transitions. [2024-01-29 14:11:36,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 301 flow [2024-01-29 14:11:36,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 81 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:36,870 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 172 flow [2024-01-29 14:11:36,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-01-29 14:11:36,871 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -26 predicate places. [2024-01-29 14:11:36,871 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 172 flow [2024-01-29 14:11:36,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2024-01-29 14:11:36,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:36,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:36,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:11:36,872 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:36,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:36,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1852287030, now seen corresponding path program 1 times [2024-01-29 14:11:36,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:36,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264498728] [2024-01-29 14:11:36,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:36,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:36,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:36,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264498728] [2024-01-29 14:11:36,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264498728] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:36,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:36,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:36,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93716909] [2024-01-29 14:11:36,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:36,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:36,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:36,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 14:11:36,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2024-01-29 14:11:36,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:36,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 14:11:36,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:37,061 INFO L124 PetriNetUnfolderBase]: 248/673 cut-off events. [2024-01-29 14:11:37,062 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-01-29 14:11:37,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 673 events. 248/673 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3648 event pairs, 91 based on Foata normal form. 20/647 useless extension candidates. Maximal degree in co-relation 1241. Up to 176 conditions per place. [2024-01-29 14:11:37,064 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 57 selfloop transitions, 7 changer transitions 0/98 dead transitions. [2024-01-29 14:11:37,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 98 transitions, 374 flow [2024-01-29 14:11:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2024-01-29 14:11:37,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-01-29 14:11:37,066 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 172 flow. Second operand 4 states and 340 transitions. [2024-01-29 14:11:37,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 98 transitions, 374 flow [2024-01-29 14:11:37,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 98 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:37,068 INFO L231 Difference]: Finished difference. Result has 81 places, 70 transitions, 199 flow [2024-01-29 14:11:37,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2024-01-29 14:11:37,069 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -23 predicate places. [2024-01-29 14:11:37,069 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 70 transitions, 199 flow [2024-01-29 14:11:37,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2024-01-29 14:11:37,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:37,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:37,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:11:37,070 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:37,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -595792375, now seen corresponding path program 1 times [2024-01-29 14:11:37,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:37,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381022379] [2024-01-29 14:11:37,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:37,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:37,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:37,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:37,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381022379] [2024-01-29 14:11:37,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381022379] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:37,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:37,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:37,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631544310] [2024-01-29 14:11:37,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:37,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:11:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:37,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:11:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:11:37,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 102 [2024-01-29 14:11:37,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 70 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2024-01-29 14:11:37,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:37,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 102 [2024-01-29 14:11:37,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:37,253 INFO L124 PetriNetUnfolderBase]: 230/651 cut-off events. [2024-01-29 14:11:37,253 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2024-01-29 14:11:37,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 651 events. 230/651 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3500 event pairs, 84 based on Foata normal form. 14/626 useless extension candidates. Maximal degree in co-relation 1270. Up to 197 conditions per place. [2024-01-29 14:11:37,256 INFO L140 encePairwiseOnDemand]: 97/102 looper letters, 47 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-01-29 14:11:37,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 86 transitions, 342 flow [2024-01-29 14:11:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:11:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:11:37,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2024-01-29 14:11:37,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7892156862745098 [2024-01-29 14:11:37,258 INFO L175 Difference]: Start difference. First operand has 81 places, 70 transitions, 199 flow. Second operand 4 states and 322 transitions. [2024-01-29 14:11:37,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 86 transitions, 342 flow [2024-01-29 14:11:37,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 86 transitions, 340 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-29 14:11:37,262 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 212 flow [2024-01-29 14:11:37,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2024-01-29 14:11:37,263 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -19 predicate places. [2024-01-29 14:11:37,263 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 212 flow [2024-01-29 14:11:37,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2024-01-29 14:11:37,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:37,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:37,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:11:37,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:37,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:37,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2030116320, now seen corresponding path program 1 times [2024-01-29 14:11:37,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:37,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003165081] [2024-01-29 14:11:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:37,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:37,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:37,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003165081] [2024-01-29 14:11:37,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003165081] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:37,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:37,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:11:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298261726] [2024-01-29 14:11:37,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:37,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:37,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:37,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:37,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 102 [2024-01-29 14:11:37,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-01-29 14:11:37,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:37,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 102 [2024-01-29 14:11:37,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:37,443 INFO L124 PetriNetUnfolderBase]: 115/493 cut-off events. [2024-01-29 14:11:37,444 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-01-29 14:11:37,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 493 events. 115/493 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2331 event pairs, 45 based on Foata normal form. 32/507 useless extension candidates. Maximal degree in co-relation 876. Up to 144 conditions per place. [2024-01-29 14:11:37,446 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 30 selfloop transitions, 8 changer transitions 0/76 dead transitions. [2024-01-29 14:11:37,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 76 transitions, 297 flow [2024-01-29 14:11:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-01-29 14:11:37,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8398692810457516 [2024-01-29 14:11:37,447 INFO L175 Difference]: Start difference. First operand has 85 places, 70 transitions, 212 flow. Second operand 3 states and 257 transitions. [2024-01-29 14:11:37,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 76 transitions, 297 flow [2024-01-29 14:11:37,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 76 transitions, 273 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-01-29 14:11:37,449 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 197 flow [2024-01-29 14:11:37,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2024-01-29 14:11:37,450 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -23 predicate places. [2024-01-29 14:11:37,450 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 197 flow [2024-01-29 14:11:37,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-01-29 14:11:37,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:37,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:37,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 14:11:37,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:37,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash -144539053, now seen corresponding path program 1 times [2024-01-29 14:11:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:37,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920970950] [2024-01-29 14:11:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:37,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:37,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920970950] [2024-01-29 14:11:37,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920970950] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:37,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:37,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:11:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071768435] [2024-01-29 14:11:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:37,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:11:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:11:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:11:37,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 14:11:37,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-01-29 14:11:37,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:37,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 14:11:37,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:37,644 INFO L124 PetriNetUnfolderBase]: 119/454 cut-off events. [2024-01-29 14:11:37,644 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-01-29 14:11:37,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 890 conditions, 454 events. 119/454 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2045 event pairs, 49 based on Foata normal form. 6/432 useless extension candidates. Maximal degree in co-relation 856. Up to 100 conditions per place. [2024-01-29 14:11:37,646 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 48 selfloop transitions, 7 changer transitions 0/89 dead transitions. [2024-01-29 14:11:37,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 89 transitions, 367 flow [2024-01-29 14:11:37,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:11:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:11:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 399 transitions. [2024-01-29 14:11:37,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7823529411764706 [2024-01-29 14:11:37,648 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 197 flow. Second operand 5 states and 399 transitions. [2024-01-29 14:11:37,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 89 transitions, 367 flow [2024-01-29 14:11:37,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 89 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:37,649 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 193 flow [2024-01-29 14:11:37,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-01-29 14:11:37,650 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -22 predicate places. [2024-01-29 14:11:37,650 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 193 flow [2024-01-29 14:11:37,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-01-29 14:11:37,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:37,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:37,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 14:11:37,651 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:37,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:37,651 INFO L85 PathProgramCache]: Analyzing trace with hash -478832956, now seen corresponding path program 1 times [2024-01-29 14:11:37,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:37,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352671851] [2024-01-29 14:11:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:37,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:37,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:37,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352671851] [2024-01-29 14:11:37,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352671851] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:37,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:37,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:11:37,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552009777] [2024-01-29 14:11:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:37,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:11:37,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:37,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:11:37,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:11:37,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 14:11:37,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-01-29 14:11:37,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:37,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 14:11:37,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:37,839 INFO L124 PetriNetUnfolderBase]: 115/434 cut-off events. [2024-01-29 14:11:37,840 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-01-29 14:11:37,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 434 events. 115/434 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1972 event pairs, 65 based on Foata normal form. 4/400 useless extension candidates. Maximal degree in co-relation 803. Up to 145 conditions per place. [2024-01-29 14:11:37,842 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 44 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-01-29 14:11:37,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 322 flow [2024-01-29 14:11:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:11:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:11:37,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 391 transitions. [2024-01-29 14:11:37,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-01-29 14:11:37,843 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 193 flow. Second operand 5 states and 391 transitions. [2024-01-29 14:11:37,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 322 flow [2024-01-29 14:11:37,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 306 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-29 14:11:37,845 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 179 flow [2024-01-29 14:11:37,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2024-01-29 14:11:37,846 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -24 predicate places. [2024-01-29 14:11:37,846 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 179 flow [2024-01-29 14:11:37,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-01-29 14:11:37,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:37,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:37,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 14:11:37,847 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:37,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1403162609, now seen corresponding path program 1 times [2024-01-29 14:11:37,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099952445] [2024-01-29 14:11:37,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:37,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099952445] [2024-01-29 14:11:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099952445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:37,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:37,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:11:37,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581470774] [2024-01-29 14:11:37,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:37,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:11:37,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:11:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:11:37,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 102 [2024-01-29 14:11:37,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 179 flow. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2024-01-29 14:11:37,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:37,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 102 [2024-01-29 14:11:37,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:38,075 INFO L124 PetriNetUnfolderBase]: 115/452 cut-off events. [2024-01-29 14:11:38,075 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-01-29 14:11:38,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 452 events. 115/452 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2029 event pairs, 49 based on Foata normal form. 1/431 useless extension candidates. Maximal degree in co-relation 809. Up to 85 conditions per place. [2024-01-29 14:11:38,077 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 34 selfloop transitions, 2 changer transitions 21/90 dead transitions. [2024-01-29 14:11:38,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 90 transitions, 356 flow [2024-01-29 14:11:38,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:11:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:11:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 391 transitions. [2024-01-29 14:11:38,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-01-29 14:11:38,079 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 179 flow. Second operand 5 states and 391 transitions. [2024-01-29 14:11:38,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 90 transitions, 356 flow [2024-01-29 14:11:38,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 90 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:11:38,080 INFO L231 Difference]: Finished difference. Result has 83 places, 65 transitions, 173 flow [2024-01-29 14:11:38,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2024-01-29 14:11:38,081 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -21 predicate places. [2024-01-29 14:11:38,081 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 65 transitions, 173 flow [2024-01-29 14:11:38,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2024-01-29 14:11:38,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:38,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-29 14:11:38,082 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-29 14:11:38,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash -25016321, now seen corresponding path program 2 times [2024-01-29 14:11:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864545772] [2024-01-29 14:11:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:38,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:38,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:38,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864545772] [2024-01-29 14:11:38,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864545772] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:38,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:38,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:11:38,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693897080] [2024-01-29 14:11:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:38,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:11:38,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:38,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:11:38,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:11:38,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 102 [2024-01-29 14:11:38,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 65 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2024-01-29 14:11:38,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:38,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 102 [2024-01-29 14:11:38,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:38,251 INFO L124 PetriNetUnfolderBase]: 61/260 cut-off events. [2024-01-29 14:11:38,251 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-01-29 14:11:38,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 260 events. 61/260 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 853 event pairs, 29 based on Foata normal form. 1/243 useless extension candidates. Maximal degree in co-relation 490. Up to 69 conditions per place. [2024-01-29 14:11:38,252 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2024-01-29 14:11:38,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 70 transitions, 262 flow [2024-01-29 14:11:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:11:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:11:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 372 transitions. [2024-01-29 14:11:38,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7294117647058823 [2024-01-29 14:11:38,253 INFO L175 Difference]: Start difference. First operand has 83 places, 65 transitions, 173 flow. Second operand 5 states and 372 transitions. [2024-01-29 14:11:38,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 70 transitions, 262 flow [2024-01-29 14:11:38,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 70 transitions, 252 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:11:38,254 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-01-29 14:11:38,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-01-29 14:11:38,255 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -26 predicate places. [2024-01-29 14:11:38,255 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-01-29 14:11:38,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2024-01-29 14:11:38,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 61 remaining) [2024-01-29 14:11:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-01-29 14:11:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-01-29 14:11:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-01-29 14:11:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 61 remaining) [2024-01-29 14:11:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 61 remaining) [2024-01-29 14:11:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 61 remaining) [2024-01-29 14:11:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 61 remaining) [2024-01-29 14:11:38,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (26 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 61 remaining) [2024-01-29 14:11:38,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-01-29 14:11:38,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 61 remaining) [2024-01-29 14:11:38,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 61 remaining) [2024-01-29 14:11:38,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 61 remaining) [2024-01-29 14:11:38,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-29 14:11:38,266 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:38,270 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:11:38,271 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:11:38,274 INFO L503 ceAbstractionStarter]: Automizer considered 34 witness invariants [2024-01-29 14:11:38,274 INFO L504 ceAbstractionStarter]: WitnessConsidered=34 [2024-01-29 14:11:38,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:11:38 BasicIcfg [2024-01-29 14:11:38,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:11:38,275 INFO L158 Benchmark]: Toolchain (without parser) took 4869.82ms. Allocated memory was 157.3MB in the beginning and 230.7MB in the end (delta: 73.4MB). Free memory was 82.7MB in the beginning and 70.2MB in the end (delta: 12.5MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,276 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:11:38,276 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:11:38,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.74ms. Allocated memory is still 157.3MB. Free memory was 82.7MB in the beginning and 57.7MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.12ms. Allocated memory is still 157.3MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,276 INFO L158 Benchmark]: Boogie Preprocessor took 50.61ms. Allocated memory is still 157.3MB. Free memory was 55.6MB in the beginning and 53.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,277 INFO L158 Benchmark]: RCFGBuilder took 507.13ms. Allocated memory is still 157.3MB. Free memory was 53.0MB in the beginning and 98.4MB in the end (delta: -45.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,277 INFO L158 Benchmark]: TraceAbstraction took 3765.04ms. Allocated memory was 157.3MB in the beginning and 230.7MB in the end (delta: 73.4MB). Free memory was 97.7MB in the beginning and 70.2MB in the end (delta: 27.5MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2024-01-29 14:11:38,278 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 0.16ms. Allocated memory is still 121.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.74ms. Allocated memory is still 157.3MB. Free memory was 82.7MB in the beginning and 57.7MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.12ms. Allocated memory is still 157.3MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.61ms. Allocated memory is still 157.3MB. Free memory was 55.6MB in the beginning and 53.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.13ms. Allocated memory is still 157.3MB. Free memory was 53.0MB in the beginning and 98.4MB in the end (delta: -45.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3765.04ms. Allocated memory was 157.3MB in the beginning and 230.7MB in the end (delta: 73.4MB). Free memory was 97.7MB in the beginning and 70.2MB in the end (delta: 27.5MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 706]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 710]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 710]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 711]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 711]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 711]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 712]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 727]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 172 locations, 61 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 936 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 634 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1591 IncrementalHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 78 mSDtfsCounter, 1591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 427 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 35 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 14:11:38,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE