./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-proofs-counter-add-4-semi-Q67.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-proofs-counter-add-4-semi-Q67.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:21:03,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:21:03,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:21:03,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:21:03,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:21:03,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:21:03,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:21:03,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:21:03,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:21:03,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:21:03,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:21:03,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:21:03,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:21:03,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:21:03,359 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:21:03,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:21:03,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:21:03,360 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:21:03,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:21:03,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:21:03,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:21:03,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:21:03,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:21:03,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:21:03,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:21:03,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:21:03,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:21:03,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:21:03,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:21:03,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:21:03,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:21:03,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:21:03,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:21:03,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:21:03,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:21:03,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:21:03,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:21:03,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:21:03,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:21:03,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:21:03,366 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:21:03,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:21:03,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:21:03,367 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:21:03,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:21:03,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:21:03,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:21:03,544 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:21:03,544 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:21:03,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-proofs-counter-add-4-semi-Q67.wvr.yml/witness.yml [2024-06-14 14:21:03,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:21:03,657 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:21:03,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-06-14 14:21:04,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:21:04,891 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:21:04,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-06-14 14:21:04,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6977f663e/56fceb8240e0437a953ab713e54cfdb4/FLAGe9d433ade [2024-06-14 14:21:04,918 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6977f663e/56fceb8240e0437a953ab713e54cfdb4 [2024-06-14 14:21:04,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:21:04,920 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:21:04,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:21:04,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:21:04,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:21:04,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:03" (1/2) ... [2024-06-14 14:21:04,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112b249a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:04, skipping insertion in model container [2024-06-14 14:21:04,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:03" (1/2) ... [2024-06-14 14:21:04,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@709b8860 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:04, skipping insertion in model container [2024-06-14 14:21:04,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:21:04" (2/2) ... [2024-06-14 14:21:04,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112b249a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:04, skipping insertion in model container [2024-06-14 14:21:04,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:21:04" (2/2) ... [2024-06-14 14:21:04,928 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:21:04,941 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:21:04,942 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] ((((! multithreaded || 0 <= i2) && (! multithreaded || 0 <= j2)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )N1) + (long long )i2 >= 0LL && (2147483648LL + (long long )N1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j2 >= 0LL) && (4294967296LL + (long long )N1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )M2 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j2 >= 0LL) && (4294967295LL - (long long )N1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N2 >= 0LL) && (long long )i2 + (long long )j1 >= 0LL) && (long long )i2 + (long long )j2 >= 0LL) && (long long )j1 + (long long )j2 >= 0LL) && (4294967295LL + (long long )N1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )M2 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N2 >= 0LL) && (4294967294LL - (long long )N1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )M2 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N2 >= 0LL))) && (! multithreaded || 0 <= j1)) && (! multithreaded || ((0 <= i2 && 0 <= j1) && 0 <= j2)) [2024-06-14 14:21:04,942 INFO L97 edCorrectnessWitness]: Location invariant before [L99-L99] ((((! multithreaded || 0 <= i2) && (! multithreaded || 0 <= j2)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )N1) + (long long )i2 >= 0LL && (2147483648LL + (long long )N1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j2 >= 0LL) && (4294967296LL + (long long )N1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )M2 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j2 >= 0LL) && (4294967295LL - (long long )N1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N2 >= 0LL) && (long long )i2 + (long long )j1 >= 0LL) && (long long )i2 + (long long )j2 >= 0LL) && (long long )j1 + (long long )j2 >= 0LL) && (4294967295LL + (long long )N1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )M2 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N2 >= 0LL) && (4294967294LL - (long long )N1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )M2 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N2 >= 0LL))) && (! multithreaded || 0 <= j1)) && (! multithreaded || ((0 <= i2 && 0 <= j1) && 0 <= j2)) [2024-06-14 14:21:04,942 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] ((((! multithreaded || 0 <= i2) && (! multithreaded || 0 <= j2)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )N1) + (long long )i2 >= 0LL && (2147483648LL + (long long )N1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j2 >= 0LL) && (4294967296LL + (long long )N1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )M2 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j2 >= 0LL) && (4294967295LL - (long long )N1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N2 >= 0LL) && (long long )i2 + (long long )j1 >= 0LL) && (long long )i2 + (long long )j2 >= 0LL) && (long long )j1 + (long long )j2 >= 0LL) && (4294967295LL + (long long )N1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )M2 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N2 >= 0LL) && (4294967294LL - (long long )N1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )M2 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N2 >= 0LL))) && (! multithreaded || 0 <= j1)) && (! multithreaded || ((0 <= i2 && 0 <= j1) && 0 <= j2)) [2024-06-14 14:21:04,943 INFO L97 edCorrectnessWitness]: Location invariant before [L98-L98] ((((! multithreaded || 0 <= i2) && (! multithreaded || 0 <= j2)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )N1) + (long long )i2 >= 0LL && (2147483648LL + (long long )N1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )N2) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M1) + (long long )j2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )i2 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j1 >= 0LL) && (2147483648LL + (long long )M2) + (long long )j2 >= 0LL) && (4294967296LL + (long long )N1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M1) + (long long )N2 >= 0LL) && (4294967296LL + (long long )M1) + (long long )M2 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N1 >= 0LL) && (4294967296LL + (long long )M2) + (long long )N2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )N2) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M1) + (long long )j2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )i2 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j1 >= 0LL) && (2147483647LL - (long long )M2) + (long long )j2 >= 0LL) && (4294967295LL - (long long )N1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M1) + (long long )N2 >= 0LL) && (4294967295LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N1 >= 0LL) && (4294967295LL - (long long )M2) + (long long )N2 >= 0LL) && (long long )i2 + (long long )j1 >= 0LL) && (long long )i2 + (long long )j2 >= 0LL) && (long long )j1 + (long long )j2 >= 0LL) && (4294967295LL + (long long )N1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M1) - (long long )N2 >= 0LL) && (4294967295LL + (long long )M1) - (long long )M2 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N1 >= 0LL) && (4294967295LL + (long long )M2) - (long long )N2 >= 0LL) && (4294967294LL - (long long )N1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M1) - (long long )N2 >= 0LL) && (4294967294LL - (long long )M1) - (long long )M2 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N1 >= 0LL) && (4294967294LL - (long long )M2) - (long long )N2 >= 0LL))) && (! multithreaded || 0 <= j1)) && (! multithreaded || ((0 <= i2 && 0 <= j1) && 0 <= j2)) [2024-06-14 14:21:04,943 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:21:04,943 INFO L106 edCorrectnessWitness]: ghost_update [L95-L95] multithreaded = 1; [2024-06-14 14:21:04,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:21:05,099 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:21:05,112 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:21:05,220 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:21:05,231 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:21:05,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05 WrapperNode [2024-06-14 14:21:05,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:21:05,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:21:05,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:21:05,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:21:05,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,276 INFO L138 Inliner]: procedures = 21, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2024-06-14 14:21:05,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:21:05,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:21:05,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:21:05,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:21:05,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,294 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,305 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-14 14:21:05,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:21:05,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:21:05,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:21:05,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:21:05,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (1/1) ... [2024-06-14 14:21:05,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:21:05,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:21:05,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 14:21:05,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 14:21:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:21:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:21:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:21:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:21:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:21:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:21:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:21:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:21:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:21:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:21:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:21:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:21:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:21:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:21:05,364 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:21:05,459 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:21:05,461 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:21:05,769 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:21:05,769 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:21:05,911 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:21:05,911 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-14 14:21:05,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:21:05 BoogieIcfgContainer [2024-06-14 14:21:05,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:21:05,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:21:05,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:21:05,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:21:05,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:03" (1/4) ... [2024-06-14 14:21:05,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57be44c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:21:05, skipping insertion in model container [2024-06-14 14:21:05,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:21:04" (2/4) ... [2024-06-14 14:21:05,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57be44c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:21:05, skipping insertion in model container [2024-06-14 14:21:05,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:05" (3/4) ... [2024-06-14 14:21:05,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57be44c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:21:05, skipping insertion in model container [2024-06-14 14:21:05,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:21:05" (4/4) ... [2024-06-14 14:21:05,920 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-06-14 14:21:05,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:21:05,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 14:21:05,932 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:21:05,990 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 14:21:06,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 44 transitions, 116 flow [2024-06-14 14:21:06,054 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2024-06-14 14:21:06,055 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:21:06,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 40 events. 4/40 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-06-14 14:21:06,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 44 transitions, 116 flow [2024-06-14 14:21:06,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 38 transitions, 97 flow [2024-06-14 14:21:06,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:21:06,085 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;@20030f73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:21:06,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 14:21:06,090 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:21:06,090 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:21:06,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:21:06,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:06,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:21:06,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:06,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash -944096943, now seen corresponding path program 1 times [2024-06-14 14:21:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005455473] [2024-06-14 14:21:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:06,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:06,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005455473] [2024-06-14 14:21:06,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005455473] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:06,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:21:06,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734259462] [2024-06-14 14:21:06,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:06,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:21:06,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:21:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:21:07,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-14 14:21:07,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:07,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:07,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-14 14:21:07,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:07,408 INFO L124 PetriNetUnfolderBase]: 2065/2826 cut-off events. [2024-06-14 14:21:07,408 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-06-14 14:21:07,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5574 conditions, 2826 events. 2065/2826 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 12452 event pairs, 324 based on Foata normal form. 36/2768 useless extension candidates. Maximal degree in co-relation 5019. Up to 1954 conditions per place. [2024-06-14 14:21:07,428 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 37 selfloop transitions, 3 changer transitions 6/55 dead transitions. [2024-06-14 14:21:07,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 55 transitions, 238 flow [2024-06-14 14:21:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:21:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:21:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-06-14 14:21:07,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-06-14 14:21:07,440 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 97 flow. Second operand 3 states and 89 transitions. [2024-06-14 14:21:07,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 55 transitions, 238 flow [2024-06-14 14:21:07,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 216 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-14 14:21:07,451 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 96 flow [2024-06-14 14:21:07,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-06-14 14:21:07,455 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2024-06-14 14:21:07,455 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 96 flow [2024-06-14 14:21:07,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:07,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:07,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:07,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:21:07,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:07,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1965480304, now seen corresponding path program 1 times [2024-06-14 14:21:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:07,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013819979] [2024-06-14 14:21:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:07,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:07,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013819979] [2024-06-14 14:21:07,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013819979] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:07,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:07,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:21:07,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680981842] [2024-06-14 14:21:07,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:07,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:21:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:21:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:21:07,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-06-14 14:21:07,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:07,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:07,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-06-14 14:21:07,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:07,743 INFO L124 PetriNetUnfolderBase]: 1530/2223 cut-off events. [2024-06-14 14:21:07,743 INFO L125 PetriNetUnfolderBase]: For 395/423 co-relation queries the response was YES. [2024-06-14 14:21:07,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4796 conditions, 2223 events. 1530/2223 cut-off events. For 395/423 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9968 event pairs, 202 based on Foata normal form. 40/2209 useless extension candidates. Maximal degree in co-relation 1694. Up to 1770 conditions per place. [2024-06-14 14:21:07,752 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 37 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2024-06-14 14:21:07,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 212 flow [2024-06-14 14:21:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:21:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:21:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-06-14 14:21:07,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6893939393939394 [2024-06-14 14:21:07,755 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 96 flow. Second operand 3 states and 91 transitions. [2024-06-14 14:21:07,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 212 flow [2024-06-14 14:21:07,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:07,758 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 114 flow [2024-06-14 14:21:07,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-06-14 14:21:07,759 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2024-06-14 14:21:07,759 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 114 flow [2024-06-14 14:21:07,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:07,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:07,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:07,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:21:07,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:07,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash 484064765, now seen corresponding path program 1 times [2024-06-14 14:21:07,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:07,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199201897] [2024-06-14 14:21:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:08,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:08,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199201897] [2024-06-14 14:21:08,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199201897] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:08,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:08,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:21:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828823936] [2024-06-14 14:21:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:08,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:21:08,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:21:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:21:08,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:08,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:08,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:08,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:08,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:09,001 INFO L124 PetriNetUnfolderBase]: 2617/3683 cut-off events. [2024-06-14 14:21:09,002 INFO L125 PetriNetUnfolderBase]: For 1063/1063 co-relation queries the response was YES. [2024-06-14 14:21:09,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8815 conditions, 3683 events. 2617/3683 cut-off events. For 1063/1063 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 17563 event pairs, 310 based on Foata normal form. 193/3525 useless extension candidates. Maximal degree in co-relation 2477. Up to 1753 conditions per place. [2024-06-14 14:21:09,024 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 65 selfloop transitions, 7 changer transitions 1/81 dead transitions. [2024-06-14 14:21:09,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 81 transitions, 378 flow [2024-06-14 14:21:09,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:21:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:21:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-06-14 14:21:09,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-06-14 14:21:09,028 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 114 flow. Second operand 5 states and 135 transitions. [2024-06-14 14:21:09,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 81 transitions, 378 flow [2024-06-14 14:21:09,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 81 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:09,031 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 160 flow [2024-06-14 14:21:09,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=160, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-06-14 14:21:09,031 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2024-06-14 14:21:09,032 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 160 flow [2024-06-14 14:21:09,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:09,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:09,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:09,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:21:09,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:09,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1011646885, now seen corresponding path program 1 times [2024-06-14 14:21:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919566525] [2024-06-14 14:21:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:09,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:10,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919566525] [2024-06-14 14:21:10,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919566525] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:10,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:10,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:10,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654599612] [2024-06-14 14:21:10,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:10,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:10,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:10,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:10,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:10,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:10,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:10,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:10,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:10,732 INFO L124 PetriNetUnfolderBase]: 4184/5788 cut-off events. [2024-06-14 14:21:10,732 INFO L125 PetriNetUnfolderBase]: For 4093/4301 co-relation queries the response was YES. [2024-06-14 14:21:10,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15802 conditions, 5788 events. 4184/5788 cut-off events. For 4093/4301 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 28914 event pairs, 481 based on Foata normal form. 82/5712 useless extension candidates. Maximal degree in co-relation 8645. Up to 2914 conditions per place. [2024-06-14 14:21:10,768 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 69 selfloop transitions, 16 changer transitions 0/94 dead transitions. [2024-06-14 14:21:10,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 94 transitions, 528 flow [2024-06-14 14:21:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-06-14 14:21:10,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-06-14 14:21:10,771 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 160 flow. Second operand 6 states and 152 transitions. [2024-06-14 14:21:10,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 94 transitions, 528 flow [2024-06-14 14:21:10,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 94 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:21:10,779 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 281 flow [2024-06-14 14:21:10,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-06-14 14:21:10,782 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2024-06-14 14:21:10,782 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 281 flow [2024-06-14 14:21:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:10,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:10,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:10,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:21:10,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:10,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash -555365027, now seen corresponding path program 2 times [2024-06-14 14:21:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:10,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024115985] [2024-06-14 14:21:10,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:11,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024115985] [2024-06-14 14:21:11,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024115985] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:11,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:11,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:11,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933035573] [2024-06-14 14:21:11,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:11,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:11,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:11,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:11,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:11,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:11,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:11,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:12,496 INFO L124 PetriNetUnfolderBase]: 5459/7509 cut-off events. [2024-06-14 14:21:12,496 INFO L125 PetriNetUnfolderBase]: For 9077/9143 co-relation queries the response was YES. [2024-06-14 14:21:12,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23559 conditions, 7509 events. 5459/7509 cut-off events. For 9077/9143 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 38371 event pairs, 544 based on Foata normal form. 94/7419 useless extension candidates. Maximal degree in co-relation 12973. Up to 3321 conditions per place. [2024-06-14 14:21:12,546 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 73 selfloop transitions, 30 changer transitions 0/112 dead transitions. [2024-06-14 14:21:12,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 112 transitions, 775 flow [2024-06-14 14:21:12,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-06-14 14:21:12,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-06-14 14:21:12,550 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 281 flow. Second operand 6 states and 151 transitions. [2024-06-14 14:21:12,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 112 transitions, 775 flow [2024-06-14 14:21:12,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 112 transitions, 755 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:12,564 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 536 flow [2024-06-14 14:21:12,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2024-06-14 14:21:12,567 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 13 predicate places. [2024-06-14 14:21:12,567 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 536 flow [2024-06-14 14:21:12,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:12,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:12,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:12,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:21:12,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:12,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1521885459, now seen corresponding path program 1 times [2024-06-14 14:21:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593284629] [2024-06-14 14:21:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:13,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:13,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593284629] [2024-06-14 14:21:13,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593284629] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:13,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:13,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:21:13,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898585033] [2024-06-14 14:21:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:13,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:21:13,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:21:13,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:21:13,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:13,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 536 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:13,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:13,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:13,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:14,215 INFO L124 PetriNetUnfolderBase]: 5345/7631 cut-off events. [2024-06-14 14:21:14,216 INFO L125 PetriNetUnfolderBase]: For 19444/19981 co-relation queries the response was YES. [2024-06-14 14:21:14,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28236 conditions, 7631 events. 5345/7631 cut-off events. For 19444/19981 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 42438 event pairs, 582 based on Foata normal form. 128/7653 useless extension candidates. Maximal degree in co-relation 16550. Up to 4729 conditions per place. [2024-06-14 14:21:14,258 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 75 selfloop transitions, 22 changer transitions 2/109 dead transitions. [2024-06-14 14:21:14,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 109 transitions, 915 flow [2024-06-14 14:21:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:21:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:21:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-06-14 14:21:14,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5772727272727273 [2024-06-14 14:21:14,260 INFO L175 Difference]: Start difference. First operand has 60 places, 68 transitions, 536 flow. Second operand 5 states and 127 transitions. [2024-06-14 14:21:14,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 109 transitions, 915 flow [2024-06-14 14:21:14,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 109 transitions, 896 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:14,317 INFO L231 Difference]: Finished difference. Result has 64 places, 69 transitions, 577 flow [2024-06-14 14:21:14,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=577, PETRI_PLACES=64, PETRI_TRANSITIONS=69} [2024-06-14 14:21:14,318 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2024-06-14 14:21:14,319 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 69 transitions, 577 flow [2024-06-14 14:21:14,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:14,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:14,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:21:14,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:14,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2064227441, now seen corresponding path program 1 times [2024-06-14 14:21:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:14,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966053180] [2024-06-14 14:21:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:15,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966053180] [2024-06-14 14:21:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966053180] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:15,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:21:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998572862] [2024-06-14 14:21:15,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:15,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:21:15,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:21:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:21:15,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:15,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 69 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:15,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:15,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:15,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:16,412 INFO L124 PetriNetUnfolderBase]: 6835/9583 cut-off events. [2024-06-14 14:21:16,412 INFO L125 PetriNetUnfolderBase]: For 27309/27373 co-relation queries the response was YES. [2024-06-14 14:21:16,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35561 conditions, 9583 events. 6835/9583 cut-off events. For 27309/27373 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 53938 event pairs, 565 based on Foata normal form. 54/9443 useless extension candidates. Maximal degree in co-relation 25937. Up to 5935 conditions per place. [2024-06-14 14:21:16,480 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 74 selfloop transitions, 41 changer transitions 1/127 dead transitions. [2024-06-14 14:21:16,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 127 transitions, 1209 flow [2024-06-14 14:21:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:16,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-06-14 14:21:16,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-06-14 14:21:16,481 INFO L175 Difference]: Start difference. First operand has 64 places, 69 transitions, 577 flow. Second operand 6 states and 144 transitions. [2024-06-14 14:21:16,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 127 transitions, 1209 flow [2024-06-14 14:21:16,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 127 transitions, 1148 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:21:16,558 INFO L231 Difference]: Finished difference. Result has 68 places, 86 transitions, 858 flow [2024-06-14 14:21:16,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=858, PETRI_PLACES=68, PETRI_TRANSITIONS=86} [2024-06-14 14:21:16,559 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 21 predicate places. [2024-06-14 14:21:16,559 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 86 transitions, 858 flow [2024-06-14 14:21:16,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:16,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:16,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:16,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:21:16,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:16,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash 456718595, now seen corresponding path program 2 times [2024-06-14 14:21:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405927001] [2024-06-14 14:21:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:17,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405927001] [2024-06-14 14:21:17,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405927001] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:17,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:17,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367198885] [2024-06-14 14:21:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:17,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:17,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:17,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:17,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-06-14 14:21:17,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 86 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:17,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:17,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-06-14 14:21:17,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:18,447 INFO L124 PetriNetUnfolderBase]: 8049/11145 cut-off events. [2024-06-14 14:21:18,447 INFO L125 PetriNetUnfolderBase]: For 37362/37426 co-relation queries the response was YES. [2024-06-14 14:21:18,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43878 conditions, 11145 events. 8049/11145 cut-off events. For 37362/37426 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 62419 event pairs, 943 based on Foata normal form. 90/10951 useless extension candidates. Maximal degree in co-relation 30973. Up to 6377 conditions per place. [2024-06-14 14:21:18,522 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 73 selfloop transitions, 75 changer transitions 1/160 dead transitions. [2024-06-14 14:21:18,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 160 transitions, 1862 flow [2024-06-14 14:21:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:18,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2024-06-14 14:21:18,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2024-06-14 14:21:18,524 INFO L175 Difference]: Start difference. First operand has 68 places, 86 transitions, 858 flow. Second operand 6 states and 138 transitions. [2024-06-14 14:21:18,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 160 transitions, 1862 flow [2024-06-14 14:21:18,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 160 transitions, 1792 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:21:18,629 INFO L231 Difference]: Finished difference. Result has 75 places, 126 transitions, 1631 flow [2024-06-14 14:21:18,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1631, PETRI_PLACES=75, PETRI_TRANSITIONS=126} [2024-06-14 14:21:18,631 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-06-14 14:21:18,631 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 126 transitions, 1631 flow [2024-06-14 14:21:18,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:18,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:18,631 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] [2024-06-14 14:21:18,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 14:21:18,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:18,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1928294532, now seen corresponding path program 1 times [2024-06-14 14:21:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:18,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119758882] [2024-06-14 14:21:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:18,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:18,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119758882] [2024-06-14 14:21:18,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119758882] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:18,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:18,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220563667] [2024-06-14 14:21:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:21:18,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:21:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:21:18,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-06-14 14:21:18,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 126 transitions, 1631 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:18,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:18,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-06-14 14:21:18,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:20,668 INFO L124 PetriNetUnfolderBase]: 13409/20119 cut-off events. [2024-06-14 14:21:20,668 INFO L125 PetriNetUnfolderBase]: For 98164/98552 co-relation queries the response was YES. [2024-06-14 14:21:20,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86629 conditions, 20119 events. 13409/20119 cut-off events. For 98164/98552 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 142975 event pairs, 2070 based on Foata normal form. 724/20519 useless extension candidates. Maximal degree in co-relation 60892. Up to 9317 conditions per place. [2024-06-14 14:21:20,825 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 139 selfloop transitions, 93 changer transitions 0/247 dead transitions. [2024-06-14 14:21:20,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 247 transitions, 3642 flow [2024-06-14 14:21:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:21:20,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:21:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-06-14 14:21:20,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7159090909090909 [2024-06-14 14:21:20,826 INFO L175 Difference]: Start difference. First operand has 75 places, 126 transitions, 1631 flow. Second operand 4 states and 126 transitions. [2024-06-14 14:21:20,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 247 transitions, 3642 flow [2024-06-14 14:21:21,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 247 transitions, 3551 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:21,207 INFO L231 Difference]: Finished difference. Result has 79 places, 213 transitions, 3499 flow [2024-06-14 14:21:21,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3499, PETRI_PLACES=79, PETRI_TRANSITIONS=213} [2024-06-14 14:21:21,210 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2024-06-14 14:21:21,210 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 213 transitions, 3499 flow [2024-06-14 14:21:21,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:21,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:21,211 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:21,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 14:21:21,211 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:21,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:21,211 INFO L85 PathProgramCache]: Analyzing trace with hash 346491752, now seen corresponding path program 2 times [2024-06-14 14:21:21,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:21,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247088] [2024-06-14 14:21:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:21,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:23,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:23,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247088] [2024-06-14 14:21:23,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247088] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:21:23,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475842277] [2024-06-14 14:21:23,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-14 14:21:23,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:21:23,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:21:23,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:21:23,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:21:23,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-14 14:21:23,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 14:21:23,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 15 conjunts are in the unsatisfiable core [2024-06-14 14:21:23,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:21:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 14:21:23,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 14:21:23,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475842277] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:23,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-14 14:21:23,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 11 [2024-06-14 14:21:23,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856530920] [2024-06-14 14:21:23,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:23,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:21:23,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:23,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:21:23,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-06-14 14:21:23,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2024-06-14 14:21:23,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 213 transitions, 3499 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:23,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:23,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2024-06-14 14:21:23,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:30,705 INFO L124 PetriNetUnfolderBase]: 49917/65737 cut-off events. [2024-06-14 14:21:30,706 INFO L125 PetriNetUnfolderBase]: For 332435/332867 co-relation queries the response was YES. [2024-06-14 14:21:30,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289885 conditions, 65737 events. 49917/65737 cut-off events. For 332435/332867 co-relation queries the response was YES. Maximal size of possible extension queue 3643. Compared 401938 event pairs, 6323 based on Foata normal form. 1974/67005 useless extension candidates. Maximal degree in co-relation 181704. Up to 27328 conditions per place. [2024-06-14 14:21:31,088 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 95 selfloop transitions, 66 changer transitions 118/285 dead transitions. [2024-06-14 14:21:31,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 285 transitions, 4513 flow [2024-06-14 14:21:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:21:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:21:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2024-06-14 14:21:31,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4630681818181818 [2024-06-14 14:21:31,091 INFO L175 Difference]: Start difference. First operand has 79 places, 213 transitions, 3499 flow. Second operand 8 states and 163 transitions. [2024-06-14 14:21:31,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 285 transitions, 4513 flow [2024-06-14 14:21:33,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 285 transitions, 4359 flow, removed 77 selfloop flow, removed 0 redundant places. [2024-06-14 14:21:33,217 INFO L231 Difference]: Finished difference. Result has 90 places, 142 transitions, 2212 flow [2024-06-14 14:21:33,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3361, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2212, PETRI_PLACES=90, PETRI_TRANSITIONS=142} [2024-06-14 14:21:33,218 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 43 predicate places. [2024-06-14 14:21:33,218 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 142 transitions, 2212 flow [2024-06-14 14:21:33,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:33,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:33,219 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:33,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:21:33,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-06-14 14:21:33,452 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:33,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1840709220, now seen corresponding path program 3 times [2024-06-14 14:21:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723223581] [2024-06-14 14:21:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723223581] [2024-06-14 14:21:35,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723223581] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:21:35,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21296703] [2024-06-14 14:21:35,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-06-14 14:21:35,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:21:35,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:21:35,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:21:35,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-14 14:21:35,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-06-14 14:21:35,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 14:21:35,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 15 conjunts are in the unsatisfiable core [2024-06-14 14:21:35,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:21:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 14:21:35,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 14:21:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21296703] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-14 14:21:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 11 [2024-06-14 14:21:35,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75915251] [2024-06-14 14:21:35,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:35,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:21:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:35,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:21:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-06-14 14:21:35,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2024-06-14 14:21:35,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 142 transitions, 2212 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:35,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:35,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2024-06-14 14:21:35,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:38,760 INFO L124 PetriNetUnfolderBase]: 23755/31909 cut-off events. [2024-06-14 14:21:38,760 INFO L125 PetriNetUnfolderBase]: For 184986/185130 co-relation queries the response was YES. [2024-06-14 14:21:38,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145603 conditions, 31909 events. 23755/31909 cut-off events. For 184986/185130 co-relation queries the response was YES. Maximal size of possible extension queue 1823. Compared 188173 event pairs, 1865 based on Foata normal form. 1782/33334 useless extension candidates. Maximal degree in co-relation 145573. Up to 17925 conditions per place. [2024-06-14 14:21:38,906 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2024-06-14 14:21:38,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 185 transitions, 2819 flow [2024-06-14 14:21:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:21:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:21:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-06-14 14:21:38,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3977272727272727 [2024-06-14 14:21:38,908 INFO L175 Difference]: Start difference. First operand has 90 places, 142 transitions, 2212 flow. Second operand 8 states and 140 transitions. [2024-06-14 14:21:38,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 185 transitions, 2819 flow [2024-06-14 14:21:41,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 185 transitions, 2526 flow, removed 25 selfloop flow, removed 11 redundant places. [2024-06-14 14:21:41,865 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2024-06-14 14:21:41,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2024-06-14 14:21:41,866 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 33 predicate places. [2024-06-14 14:21:41,866 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2024-06-14 14:21:41,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 14:21:41,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 14:21:41,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 14:21:41,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 14:21:41,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-06-14 14:21:42,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-06-14 14:21:42,082 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2024-06-14 14:21:42,085 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:21:42,085 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:21:42,087 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 14:21:42,088 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 14:21:42,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:21:42 BasicIcfg [2024-06-14 14:21:42,088 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:21:42,089 INFO L158 Benchmark]: Toolchain (without parser) took 37169.04ms. Allocated memory was 113.2MB in the beginning and 10.4GB in the end (delta: 10.3GB). Free memory was 87.7MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-06-14 14:21:42,089 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:21:42,089 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 94.4MB. Free memory was 54.2MB in the beginning and 54.0MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:21:42,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.64ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 68.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-14 14:21:42,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 65.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:21:42,090 INFO L158 Benchmark]: Boogie Preprocessor took 37.84ms. Allocated memory is still 113.2MB. Free memory was 65.3MB in the beginning and 62.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:21:42,090 INFO L158 Benchmark]: RCFGBuilder took 595.58ms. Allocated memory is still 113.2MB. Free memory was 62.8MB in the beginning and 77.2MB in the end (delta: -14.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-06-14 14:21:42,090 INFO L158 Benchmark]: TraceAbstraction took 36173.22ms. Allocated memory was 113.2MB in the beginning and 10.4GB in the end (delta: 10.3GB). Free memory was 76.5MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-06-14 14:21:42,091 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.65ms. Allocated memory is still 94.4MB. Free memory was 54.2MB in the beginning and 54.0MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.64ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 68.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 65.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.84ms. Allocated memory is still 113.2MB. Free memory was 65.3MB in the beginning and 62.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.58ms. Allocated memory is still 113.2MB. Free memory was 62.8MB in the beginning and 77.2MB in the end (delta: -14.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36173.22ms. Allocated memory was 113.2MB in the beginning and 10.4GB in the end (delta: 10.3GB). Free memory was 76.5MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 97]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 98]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 99]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 61 locations, 8 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: 36.1s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 583 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2210 IncrementalHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 24 mSDtfsCounter, 2210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3499occurred in iteration=9, InterpolantAutomatonStates: 60, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 260 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 11073 SizeOfPredicates, 0 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 6/8 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:21:42,113 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